Provincetown, Massachusetts Weather Conditions

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Current Conditions

  • 55°
  • Scattered Clouds
  • Wind: North -9999 mph
  • Humidity: 88%
  • Visibility: 10.0 miles
  • Dew Point: 52°
  • Pressure: 30.06 in. 0

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
63°
63°
63°
68°
70°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Mostly Cloudy
  • High: 72 °
  • Low: 61 °
  • Mostly Cloudy
  • Friday
  • Partly Cloudy
  • High: 73 °
  • Low: 57 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 72 °
  • Low: 63 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 70 °
  • Low: 59 °
  • Clear
  • Monday
  • Clear
  • High: 73 °
  • Low: 59 °
  • Clear

Forecast for Provincetown, Massachusetts

Updated: 11:00 PM EDT on August 20, 2014

  • Wednesday

    Clear. High of 73F. Winds from the East at 5 to 10 mph.

  • Wednesday Night

    Clear in the evening, then partly cloudy. Low of 61F. Winds from the East at 5 to 10 mph.

  • Thursday

    Mostly cloudy. High of 72F. Winds from the NE at 10 to 15 mph.

  • Thursday Night

    Partly cloudy. Low of 61F. Winds from the NE at 5 to 10 mph.

  • Friday

    Partly cloudy. High of 73F. Winds from the ENE at 10 to 15 mph.

  • Friday Night

    Mostly cloudy. Fog overnight. Low of 57F. Winds from the ENE at 5 to 15 mph.

  • Saturday

    Mostly cloudy. High of 72F. Winds from the ENE at 10 to 15 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 63F. Winds from the NE at 10 to 15 mph.

  • Sunday

    Clear. High of 70F. Winds from the NE at 10 to 15 mph.

  • Sunday Night

    Partly cloudy. Fog overnight. Low of 59F. Winds from the NE at 5 to 10 mph.

  • Monday

    Clear. High of 73F. Winds from the NE at 5 to 10 mph shifting to the SE in the afternoon.

  • Monday Night

    Clear. Fog overnight. Low of 59F. Winds from the SSW at 5 to 10 mph.

  • Tuesday

    Clear. High of 75F. Winds from the SSW at 5 to 15 mph.

  • Tuesday Night

    Clear. Fog overnight. Low of 64F. Winds from the SW at 10 to 15 mph.

  • Wednesday

    Clear. High of 73F. Breezy. Winds from the SW at 10 to 20 mph.

  • Wednesday Night

    Clear. Low of 59F. Breezy. Winds from the SW at 15 to 20 mph.

  • Thursday

    Clear. High of 75F. Winds from the SSW at 5 to 20 mph.

  • Thursday Night

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

  • Friday

    Clear. High of 73F. Winds less than 5 mph.

  • Friday Night

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

  • Saturday

    Partly cloudy with a chance of a thunderstorm. High of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday

    Clear with a chance of rain. High of 73F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday Night

    Clear. Low of 64F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Great Hills, Truro, MA

Updated: 10:11 PM EDT

Temperature: 58.6 °F Dew Point: 58 °F Humidity: 99% Wind: ESE at 1.7 mph Pressure: 30.06 in Hourly Precipitation: - Graphs

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

Updated: 10:21 PM EDT

Temperature: 61.8 °F Dew Point: 59 °F Humidity: 90% Wind: NE at 1.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Graphs

Location: North Sunken Meadow, Eastham, MA

Updated: 10:10 PM EDT

Temperature: 61.9 °F Dew Point: 60 °F Humidity: 94% Wind: WNW at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Heron Cottage, Eastham, MA

Updated: 10:21 PM EDT

Temperature: 61.5 °F Dew Point: 60 °F Humidity: 95% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Schrock Dome, Eastham, MA

Updated: 10:21 PM EDT

Temperature: 60.5 °F Dew Point: 58 °F Humidity: 93% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: Muddy Pond, Eastham, MA

Updated: 10:21 PM EDT

Temperature: 62.6 °F Dew Point: 0 °F Humidity: 8% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Graphs

Location: Manomet, Plymouth, MA

Updated: 10:21 PM EDT

Temperature: 65.3 °F Dew Point: 63 °F Humidity: 92% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Graphs

Location: RobDen, Brewster, MA

Updated: 10:20 PM EDT

Temperature: 62.0 °F Dew Point: 60 °F Humidity: 93% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Brewster Park, Brewster, MA

Updated: 10:21 PM EDT

Temperature: 64.9 °F Dew Point: 64 °F Humidity: 97% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Graphs

Location: White Horse Beach, Plymouth, MA

Updated: 10:19 PM EDT

Temperature: 62.8 °F Dew Point: 57 °F Humidity: 81% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Graphs

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

Updated: 10:21 PM EDT

Temperature: 60.4 °F Dew Point: 60 °F Humidity: 99% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Graphs

Location: Nauset Heights Bluff, Orleans, MA

Updated: 10:21 PM EDT

Temperature: 62.3 °F Dew Point: 61 °F Humidity: 95% Wind: ENE at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Scargo Hill Dennis MA, Dennis, MA

Updated: 10:21 PM EDT

Temperature: 63.3 °F Dew Point: 63 °F Humidity: 99% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Graphs

Location: Marshfields Favorite Turnaround, Brant Rock, MA

Updated: 10:20 PM EDT

Temperature: 65.7 °F Dew Point: 63 °F Humidity: 90% Wind: East at 4.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: ORLEANS, SOUTH ORLEANS, MA

Updated: 10:21 PM EDT

Temperature: 64.0 °F Dew Point: 39 °F Humidity: 39% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: East Harwich DW5051, East Harwich, MA

Updated: 10:21 PM EDT

Temperature: 60.8 °F Dew Point: 58 °F Humidity: 90% Wind: Calm Pressure: 30.04 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 
1000 PM EDT Wednesday Aug 20 2014 


Synopsis... 
wet weather likely impacting western and central portions of New 
England beginning tonight and continuing through Friday. Drier and 
cooler weather follows into the weekend. A warm-up is possible 
into next week prior to an unsettled pattern ahead of a frontal 
boundary sweeping south out of Canada. 


&& 


Near term /until 6 am Thursday morning/... 
10 PM update... 
meteorological squeeze play going on this evening as warm front 
continues to move east slowly from NY/PA. As well a trough of low pressure 
continues to deepen offshore. While the former feature is moisture 
starved and struggles to allow any precipitation to move in under 
inverted ridging...the latter will have to be watched. Models 
continue to indicate that a weak inverted trough develops...hanging 
back toward mvy and ack early in the morning. Even the mesoscale-scale 
guidance indicates weak convergence in the flow pattern. The 
question is whether a band of showers develops far enough north to 
effect the cape and islands. Earlier guidance was much more robust 
with this and have since backed off. As such...will lower guidance 
mainly to slight chance across the area with chance just offshore. 
Will continue to monitor as the evening progresses. Do already 
note some low clouds developing over ack with latest ob. 


Previous discussion... 


Previous discussion... 
heights fall as the Great Lakes low shifts into the NE Continental U.S.... 
troughing towards the west-east axis of low pressure and instability off 
the mid-Atlantic. Labrador ridge of high pressure along with dry 
air and subsidence will persist into New England...ahead of which 
the collision towards low pressure and higher Theta-E air will 
result in a defined area of convergence across PA/NY...and 
possibly southeast Massachusetts. 


To the west...increasing Theta-E moisture loading the middle- to upper- 
levels will likely result in increasing and thickening clouds west to 
east. But still a lot of dry air to overcome below h6-7 especially over 
east New England with the inverted ridge. Noting the warm front well west 
across PA/New York along with parent dynamics and low-level convergence... 
best chances for showers within areas of deep-layer ascent should 
be no further east of the CT-River Valley. Expecting sprinkles. Its 
likely better activity will be well north/west parent with better moisture 
convergent along the nose of the h925-85 jet into the Adirondacks 
on up into Ontario/Quebec as destabilization concludes. Prefer 
chance probability of precipitation only into the CT-valley. 


To the southeast...troughing southeast backs low pressure and higher Theta-E air 
off the east-west stalled front off the mid-Atlantic. The convergence of 
air masses along an inverted-trough to the aforementioned low will 
be the focus for potential heavy rain...even thunderstorms. Mainly a 
warm-rain process with precipitable waters  up to 1.75 inches. While a consistent 
signal among forecast solutions...outcomes vary slightly likely due 
to the strength of inverted-ridge. Will go with likely probability of precipitation for 
Nantucket with chance probability of precipitation into the cape and southeast Massachusetts. The setup is 
already coming together seen per infrared/visible satellite...but a lot 
of uncertainty between the strength of the ridge and the zone 
setup of convergence. WRF/NAM the most robust with outcomes. 17z 
hrrr/18z rap has activity missing Nantucket. Not enough confidence 
to go high categorical probability of precipitation. 


Thicker clouds across the region will limit radiational cooling. 
Anticipating a more mild night over much of the region with lows 
around the upper-50s. Coolest conditions expected across east/southeast Massachusetts 
under light and variable winds and the better chance of radiating 
out...lows around the mid-50s. For such areas there is also the 
possibility of patchy ground fog. 


&& 


Short term /6 am Thursday morning through Thursday night/... 
Thursday into Thursday night... 


Closed low out of the Great Lakes gradually wobbles into New England 
through the forecast period. The system weakens as it transitions SW 
re-emerging along the west-east frontal boundary off the middle-Atlantic 
towards the better thermal-instability axis. 


Subsequent rising heights allows ridging to build SW Thursday 
night. While higher Theta-E air streams across the region within 
the mid-levels...E-flow within low-levels from the Labrador high 
undercuts moisture loading aloft keeping conditions fairly stable 
and dry...likely to erode activity S and west. 


As the low transitions and weakens...precipitation across the cape 
and islands concludes with the strengthening influence of the 
ridge. Energy and moisture parent to the low is anticipated to 
sweep mainly across SW New England...perhaps SW of a line from 
Boston to Keene New Hampshire. Will keep these areas under chance probability of precipitation 
accordingly with ascent and likely convergence against the SW 
building ridge. 


With the undercutting dry and stable airmass off the ocean with the 
strengthening ridge late...and clouds through the period limiting 
destabilization...not expecting any thunder. Highs around the middle- 
to upper-70s during the day with lows around the upper-50s. 


&& 


Long term /Friday through Wednesday/... 
highlights... 


* quiet weather expected through much of the long term 
* uncertainty increases middle of next week with an approaching 
front. 


Models are in good agreement through much of the long term. A 
persistent upper level trough over the northeast will slowly make 
its way east...moving just offshore this weekend as an upper level 
ridge tries to push northeastward from the southern U.S. The upper 
trough is rather persistent though and each model run keeps the 
trough just offshore longer and longer. 


Cooler...less seasonable weather is expected while high pressure in 
Quebec will keep things relatively dry. Models are indicating some 
potential for quantitative precipitation forecast each day through the weekend but given the lack of 
any forcing mechanism and very little moisture to speak of... 
thinking this could be convective feedback rather than a depiction 
of anything likely to occur. 


The high will sink south through the weekend into early next 
week...eventually dropping south and east of southern New England 
and returning US to a more westerly flow. Low pressure in Ontario 
may eventually move eastward into Quebec bringing a cold front 
through southern New England Wednesday or Thursday. This is where 
models start to diverge a bit with the European model (ecmwf) a bit quicker than the 
GFS with the approach of the front. Depending on available moisture 
this may initiate a few showers and thunderstorms ahead of the front. 


&& 


Aviation /02z Thursday through Monday/... 
forecaster confidence levels... 


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


Short term...through Thursday night...moderate confidence. 


VFR. Light/vrb winds overnight before prevailing east/southeast Thursday 
into Thursday night. Low-end VFR ceilings slowly building east along with 
-ra chances towards ijd-orh-afn. Will also need to watch southeast Massachusetts for 
potential +ra and MVFR-IFR impacts beginning after midnight into 
Thursday morning. Conditions begin to improve closer to Friday 
morning. 


Kbos terminal...high confidence in taf. East/southeast flow prevails. Expect 
conditions no lower than low-end VFR ceilings. -Ra chances minimal. 


Kbdl terminal...high confidence in taf. -Ra chances begin towards 
Thursday morning along with low-end VFR ceilings. MVFR ceilings possible 
though low-confidence at this time. 


Outlook...Friday through Monday... 


Moderate confidence. Mainly VFR. Low probability of patchy 
MVFR/IFR fog each night. 


&& 


Marine... 
forecaster confidence levels... 


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


Short-term...through Thursday night...moderate confidence. 


Closely monitoring the southeast waters. May see a surgance of rain along 
with visibility impacts during the overnight hours into Thursday 
along with an increase in east-NE flow as an area of low pressure 
develops well out to sea. Quite possible wind gust up to 25 
kts...but will hold around 20 kts for now. Will keep seas around 3 
to 4 feet. Conditions relax into Friday morning. 


Outlook...Friday through Monday... 


Moderate to high confidence. Quiet boating weather is expected 
through much of the period with high pressure across the region. 
Low probability of patchy overnight fog limiting visibilities. 


&& 


Box watches/warnings/advisories... 
CT...none. 
Massachusetts...none. 
New Hampshire...none. 
Rhode Island...none. 
Marine...none. 


&& 


$$ 
Synopsis...rlg/sipprell 
near term...doody/sipprell 
short term...sipprell 
long term...rlg 
aviation...kjc/rlg/sipprell 
marine...rlg/sipprell 



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