Provincetown, Massachusetts Weather Conditions

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Current Conditions

  • 55°
  • Clear
  • Wind: NE 8 mph
  • Humidity: 47%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.42 in. +

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
55°
50°
50°
46°
52°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 61 °
  • Low: 46 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 70 °
  • Low: 55 °
  • Clear
  • Sunday
  • Chance of Rain
  • High: 73 °
  • Low: 50 °
  • Chance of Rain
  • Monday
  • Partly Cloudy
  • High: 72 °
  • Low: 55 °
  • Partly Cloudy
  • Tuesday
  • Clear
  • High: 70 °
  • Low: 41 °
  • Clear

Forecast for Provincetown, Massachusetts

Updated: 5:00 PM EDT on September 19, 2014

  • Friday

    Clear. High of 61F. Breezy. Winds from the NE at 15 to 20 mph.

  • Friday Night

    Clear. Low of 46F. Winds from the SSE at 5 to 10 mph.

  • Saturday

    Clear. High of 70F. Breezy. Winds from the South at 10 to 20 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 55F. Winds from the South at 10 to 15 mph.

  • Sunday

    Partly cloudy with a chance of rain in the afternoon. High of 73F. Winds from the South at 10 to 15 mph. Chance of rain 30%.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 50F. Winds from the NE at 5 to 20 mph shifting to the WSW after midnight.

  • Monday

    Clear in the morning, then partly cloudy. High of 72F. Breezy. Winds from the West at 10 to 20 mph.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 55F. Breezy. Winds from the NW at 15 to 20 mph.

  • Tuesday

    Clear. High of 70F. Winds from the West at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 41F. Breezy. Winds from the North at 15 to 25 mph.

  • Wednesday

    Clear. High of 59F. Breezy. Winds from the NE at 10 to 25 mph.

  • Wednesday Night

    Clear. Low of 54F. Winds from the ENE at 5 to 10 mph.

  • Thursday

    Clear. High of 63F. Winds from the East at 5 to 10 mph shifting to the SSE in the afternoon.

  • Thursday Night

    Partly cloudy. Low of 54F. Winds from the SW at 10 to 15 mph.

  • Friday

    Partly cloudy. High of 68F. Winds from the West at 5 to 15 mph shifting to the NE in the afternoon.

  • Friday Night

    Partly cloudy. Low of 61F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 72F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 61F. Winds less than 5 mph.

  • Sunday

    Clear. High of 68F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 61F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 68F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 61F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 66F. Winds from the NE at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 61F. Breezy. Winds from the SSW at 15 to 20 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Great Hills, Truro, MA

Updated: 3:37 PM EDT

Temperature: 57.9 °F Dew Point: 37 °F Humidity: 45% Wind: ENE at 7.8 mph Pressure: 30.30 in Hourly Precipitation: - Graphs

Location: Lt. Island, Wellfleet, MA

Updated: 3:48 PM EDT

Temperature: 57.9 °F Dew Point: 37 °F Humidity: 45% Wind: ENE at 9.8 mph Pressure: 30.40 in Hourly Precipitation: 0.00 in Graphs

Location: Old Wharf Rd, South Wellfleet, Wellfleet, MA

Updated: 3:50 PM EDT

Temperature: 55.9 °F Dew Point: 38 °F Humidity: 52% Wind: NNE at 7.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Graphs

Location: North Sunken Meadow, Eastham, MA

Updated: 3:37 PM EDT

Temperature: 55.3 °F Dew Point: 39 °F Humidity: 54% Wind: NW at 9.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Graphs

Location: Heron Cottage, Eastham, MA

Updated: 3:50 PM EDT

Temperature: 57.6 °F Dew Point: 38 °F Humidity: 48% Wind: Calm Pressure: 30.35 in Hourly Precipitation: 0.00 in Graphs

Location: Schrock Dome, Eastham, MA

Updated: 3:50 PM EDT

Temperature: 57.0 °F Dew Point: 36 °F Humidity: 45% Wind: NNW at 1.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Graphs

Location: Muddy Pond, Eastham, MA

Updated: 3:50 PM EDT

Temperature: 56.6 °F Dew Point: 6 °F Humidity: 13% Wind: Calm Pressure: 30.63 in Hourly Precipitation: 0.00 in Graphs

Location: Manomet, Plymouth, MA

Updated: 3:50 PM EDT

Temperature: 55.2 °F Dew Point: 42 °F Humidity: 60% Wind: NE at 9.2 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: RobDen, Brewster, MA

Updated: 3:50 PM EDT

Temperature: 60.1 °F Dew Point: 41 °F Humidity: 49% Wind: ENE at 4.0 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Graphs

Location: White Horse Beach, Plymouth, MA

Updated: 3:46 PM EDT

Temperature: 59.0 °F Dew Point: 41 °F Humidity: 52% Wind: Calm Pressure: 30.24 in Hourly Precipitation: - Graphs

Location: Animal Rescue League of Boston- Brewster Animal Care and Adoption Center, Brewster, MA

Updated: 3:50 PM EDT

Temperature: 61.5 °F Dew Point: 37 °F Humidity: 40% Wind: SW at 2.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Graphs

Location: West Brewster, MA, Brewster, MA

Updated: 3:50 PM EDT

Temperature: 58.1 °F Dew Point: 42 °F Humidity: 56% Wind: NE at 3.0 mph Pressure: 30.33 in Hourly Precipitation: 0.00 in Graphs

Location: Nauset Heights Bluff, Orleans, MA

Updated: 3:50 PM EDT

Temperature: 60.4 °F Dew Point: 41 °F Humidity: 48% Wind: North at 6.0 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Graphs

Location: Scargo Hill Dennis MA, Dennis, MA

Updated: 3:50 PM EDT

Temperature: 58.5 °F Dew Point: 47 °F Humidity: 65% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Graphs

Location: Marshfields Favorite Turnaround, Brant Rock, MA

Updated: 3:50 PM EDT

Temperature: 54.5 °F Dew Point: 44 °F Humidity: 58% Wind: ENE at 6.0 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Graphs

Location: ORLEANS, SOUTH ORLEANS, MA

Updated: 3:46 PM EDT

Temperature: 58.8 °F Dew Point: -8 °F Humidity: 6% Wind: Calm Pressure: 30.53 in Hourly Precipitation: 0.00 in Graphs

Location: WA1FSC - Yarmouth Port, Yarmouth, MA

Updated: 3:42 PM EDT

Temperature: 57.6 °F Dew Point: 42 °F Humidity: 55% Wind: North at 2.7 mph Pressure: 30.40 in Hourly Precipitation: - Graphs

Location: East Harwich DW5051, East Harwich, MA

Updated: 3:50 PM EDT

Temperature: 57.6 °F Dew Point: 40 °F Humidity: 52% Wind: Calm Pressure: 30.39 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Taunton Massachusetts 
1046 am EDT Friday Sep 19 2014 


Synopsis... 
cool temperatures will prevail today as high pressure moves in. 
There is the possibility of some early morning frost Saturday 
morning. A cold front crosses New England Sunday night night while 
a low pressure center rapidly passes southeast of Nantucket on its 
way to Nova Scotia. After the cold front passes offshore Monday 
morning...high pressure dominates the region through all of next 
week. 


&& 


Near term /until 6 PM this evening/... 
1025 am update... 
bands of ocean clouds have moved into east Rhode Island/east coastal and southeast Massachusetts 
this morning on north-NE winds that remain rather gusty as colder air 
moves across. Noting the clouds starting to dissipate further 
inland as drier air works in from high pressure building S out of 
southern Quebec and northern New England. Expect these clouds to 
continue to dissipate as the ocean winds diminishes this 
afternoon. 


Temperatures at 14z have recovered to the middle 40s to middle 50s after 
overnight lows ranging from the Lower-Middle 30s well inland /mainly 
across S New Hampshire/ to the lower 50s along the southeast coast of Massachusetts to coastal 
Rhode Island. 


850 mb temperatures remain cool through most of the day across the region... 
ranging from around 0c across S New Hampshire to +3-4c across S coastal areas 
around midday. As winds shift to east and diminish as the high builds 
across northern New England...should see 850 mb temperatures increase by 
evening. This should allow daytime temperatures to rise to the middle 50s to 
lower 60s at most locations...though could reach the middle 60s 
across the lower CT valley this afternoon. 


Have updated grids to bring conditions current and incorporated 
into the afternoon forecast trends. 


&& 


Short term /6 PM this evening through 6 PM Saturday/... 
tonight... 
high pressure will crest early in the evening then begin to slide 
offshore. Dry weather prevails although weak inverted trough may lead to 
some building cloud cover just west of the box County Warning Area during the early 
morning hours...more on the impacts of that in a bit. 


The key tonight will be potential for cool temperatures and another round 
of potential frost. Overall...conditions are more ripe for 
radiational cooling than Thursday night thanks to a much weakened pressure 
gradient under the high pressure and another start of mainly sky clear 
skies. However there are some mitigating factors to consider...one 
being the cloud cover just mentioned...should that build far 
enough inland of the Hudson Valley region...its not out of the 
question this could limit the falling temperatures. Models do indicate 
the typical dewpt rise under the return flow as high exits to the 
east...but feel that this is likely much too fast given the very dry 
start and continued influence of the high itself. While each of 
these may limit frost development...do notice that bias corrected 
temperatures support some middle 30s particularly in northwest Massachusetts and SW New Hampshire and 
even a few of the typically cooler east Massachusetts suburbs. Therefore...may 
need to monitor for another round of frost advisories today. Will 
hold off on issuance this morning given current frost advisory in 
place...but those with sensitive vegetation may wish to take 
action today nonetheless. 


Sat... 
high pressure continues slow slide to the east but remains in control as 
inverted ridging. This is enhanced by subsidence between 
approaching ocean system and cold front to the west. 
Therefore...although upper level cloud cover is likely to increase 
across the west through the day...feel much of the day will remain 
dry. Middle level temperatures moderate under S-SW flow to about +8c to +10c 
which with full mixing suggests temperatures may rise above seasonal 
normals...however the cool start to the day and slow rise in these 
middle level temperatures suggests that actual highs may be closer to normal. 
Mainly upper 60s and low 70s. 


&& 


Long term /Saturday night through Thursday/... 
* chance of showers Sunday night with cold front passage 
* then probably dry all next week 


Overview... 


Fairly sharp short wave trough and associated front expected to cross 
New England Sunday night. A potentially significant complication in 
the forecast is the likely passage of a surface low just southeast of 
Nantucket ahead of the cold front. Since this low pressure system 
may contain tropical processes...confidence in how this system will 
interact with the middle latitude short wave and cold front is low. We 
note a dramatic development of an associated upper jet with the 
coastal low from 80 to 100+ knots in less than 12 hours Sunday night. 
The model consensus continues to keep this system distinctly 
separate from the frontal system until well past New England. And 
there is a strong hint that much of southern New England could be 
caught in a subsidence zone between the front and coastal surface 
low with resulting minimal rainfall. However...if the coastal low 
pressure should have a more distinct identity as a tropical or 
subtropical system...then one might expect a somewhat slower speed 
and back building of the upper jet to at least bring a higher threat 
of significant rainfall to southeast New England. For now plan to take a 
conservative approach with probability of precipitation and quantitative precipitation forecast but keep in mind there is 
above average uncertainty for the late Sunday through Sunday night 
time frame. Once the low off the coast passes by and the cold front 
sweeps offshore Monday morning...medium range models are in fairly 
close agreement on a high amplitude upper ridge building over 
eastern North America with very little chance of rain for the 
foreseeable future in our area. We would anticipate relatively mild 
daytime temperatures and cool overnight temperatures in this pattern 
with relatively high diurnal ranges...near to above normal afternoon 
temperatures and near to below normal late night/early morning 
temperatures. 


More specifically... 


Saturday night...dry and milder as return flow about surface high 
pressure east of area and approaching cold front over the 
Great Lakes becomes better established. 


Sunday...thinking that much of area will remain dry with two notable 
exceptions. One exception could be across northwest Massachusetts and SW New Hampshire where air 
mass becomes marginally unstable and more moist ahead of an 
approaching cold front. Intend to indicate chance 
showers/thunderstorms roughly northwest of a mht-orh-bdl line. There will 
be increasing vertical shear and cannot rule out an isolated strong 
or even severe thunderstorm northwest Massachusetts and SW New Hampshire late Sunday afternoon or 
evening. The exception is the southeast portion of the forecast area. Will 
raise probability of precipitation to chance in southeast ahead of coastal low by Sunday afternoon 
as moisture may stream rapidly northward from coastal low pressure 
system to the south...which is expected to trigger a strengthening 
of an upper level jet along/just off the coast. 


Sunday night...as per overview section we have above average 
uncertainty for this forecast period as rain chances will depend 
upon interaction between cold front and low pressure passing just 
offshore. For now plan on chance probability of precipitation with highest values far northwest and 
far southeast. Vertical shear increases to 40 to 50 knots 0 to 6 km Sunday 
evening and any thunderstorms...most likely northwest sections...could 
contain strong winds. 


Monday...lingering chance of showers far southeast and otherwise dry as 
surface high pressure builds into the region. May be breezy from the 
northwest due to combination of moderately tight surface pressure gradient 
and moderate cold air advection. 


Tuesday through Thursday...relatively high confidence of dry 
conditions through the period with mild days and cool nights. It is 
possible that radiational cooling during Tuesday night and/or 
Wednesday night could be robust enough for some patchy frost SW New Hampshire 
and northwest Massachusetts...but confidence on this is quite low this far out. 
Otherwise...expect the main story is that we will be increasing a 
precipitation deficit for much of area next week. Do not see any 
credible rain threat in the foreseeable future after Sunday night. 


&& 


Aviation /14z Friday through Tuesday/... 
forecaster confidence levels... 


Low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short term /through Saturday/...high confidence. 


Mainly VFR through the period...except some early morning fog is 
possible at the typical terminals late tonight/early Sat. 


Winds sustained around 10 knots continue through the early half of 
the day with a few gusts to 20 knots...especially southeast coastal areas. 
The winds diminish tonight. Winds out of the S-SW on Sat...with 
afternoon gusts to 20 knots possible once again. 


Kbos terminal...high confidence in taf. 


Kbdl terminal...high confidence in taf. 


Outlook...Saturday night through Tuesday... 


High confidence through the period except moderate confidence Sunday 
afternoon and night. 


Saturday night...VFR expected except for possibly patchy valley fog. 


Sunday...VFR expected except MVFR ceilings/visibilities in vicinity of 
scattered showers/thunderstorms northwest of a mht-orh-bdl line Sunday 
afternoon. A second area of MVFR ceilings/visibilities may develop Sunday 
afternoon along and S of a bid-hya-cqx line in areas of showers. 


Sunday night...MVFR ceilings/visibilities possible in showers across the region. 


Monday through Tuesday...VFR conditions expected. 


&& 


Marine... 
forecaster confidence levels... 


Low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short term /through Saturday/...high confidence. 


This afternoon and tonight...cold air advection continues across 
the waters through midday...so continued with north-NE winds gusting 
up to 25 knots. Winds should diminish from north-S this afternoon as high 
pressure builds toward the waters. Lingering wind waves at 5-6 feet will 
continue on the outer waters...though starting to see them subside 
east of Cape Ann /buoy 44029/. Have continued small crafts for now. 
Will monitor for decreasing trends on the near shore waters and 
possibility of lowering small crafts during the afternoon. 


Will likely need to continue small crafts into the evening on the 
outer waters. Expect conditions to improve overnight as winds 
shift to the S and...along with seas...diminish. 


Sat... 
S-SW winds dominate...with a few gusts to around 20 knots in the 
afternoon...but should generally remain below Small Craft Advisory 
thresholds. Seas too will remain generally 3-4 feet on the ocean 
waters and lower near shore. 


Outlook...Saturday night through Tuesday...moderate confidence. 


Saturday night through Sunday...high confidence of winds and seas 
below Small Craft Advisory levels except possible building swell 
over the southern coastal waters late Sunday. 


Sunday night into Monday...moderate confidence. May see seas 
building to Small Craft Advisory levels across at least the outer 
waters Sunday night and persisting into Monday. In addition...may 
have a period of Small Craft Advisory gusts from the northwest during the 
day Monday. Low pressure center passing southeast of Nantucket may have 
very significant winds and seas on its east side...but probably 
well offshore of our coastal waters. 


Tuesday...moderate to high confidence of winds and seas below Small 
Craft Advisory levels. 


&& 


Box watches/warnings/advisories... 
CT...none. 
Massachusetts...none. 
New Hampshire...none. 
Rhode Island...none. 
Marine...Small Craft Advisory until 2 PM EDT this afternoon for 
anz232>235-237. 
Small Craft Advisory until 5 PM EDT this afternoon for anz231- 
251. 
Small Craft Advisory until 8 PM EDT this evening for anz250. 
Small Craft Advisory until midnight EDT tonight for anz254-255. 
Small Craft Advisory until 10 PM EDT this evening for anz256. 


&& 


$$ 
Synopsis...doody/Thompson 
near term...evt 
short term...doody 
long term...Thompson 
aviation...doody/Thompson 
marine...doody/evt/Thompson 






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