Saint Ann, Missouri Weather Conditions

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Current Conditions

  • 26°
  • Mostly Cloudy
  • Wind: ESE 10 mph
  • Humidity: 75%
  • Visibility: 10.0 miles
  • Dew Point: 19°
  • Pressure: 30.45 in. -
  • Heat Index: 16

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Partly Cloudy
Partly Cloudy
28°
27°
27°
36°
46°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 48 °
  • Low: 25 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 59 °
  • Low: 52 °
  • Partly Cloudy
  • Sunday
  • Chance of Rain
  • High: 68 °
  • Low: 25 °
  • Chance of Rain
  • Monday
  • Mostly Cloudy
  • High: 30 °
  • Low: 25 °
  • Mostly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 43 °
  • Low: 27 °
  • Partly Cloudy

Forecast for Saint Ann, Missouri

Updated: 9:00 PM CST on November 27, 2014

  • Friday

    Partly cloudy. High of 48F. Winds from the SSE at 10 to 15 mph.

  • Friday Night

    Partly cloudy in the evening, then overcast. Low of 39F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy. High of 59F. Winds from the SSW at 10 to 15 mph.

  • Saturday Night

    Partly cloudy. Low of 52F. Winds from the SSW at 10 to 15 mph.

  • Sunday

    Overcast with a chance of rain. High of 68F. Winds from the SW at 10 to 15 mph. Chance of rain 20%.

  • Sunday Night

    Overcast with a chance of snow. Low of 25F. Breezy. Winds from the NNW at 10 to 20 mph.

  • Monday

    Overcast. High of 30F with a windchill as low as 14F. Breezy. Winds from the NNE at 15 to 20 mph.

  • Monday Night

    Overcast in the evening, then partly cloudy. Low of 25F with a windchill as low as 18F. Winds from the ENE at 5 to 10 mph.

  • Tuesday

    Overcast in the morning, then partly cloudy. High of 43F. Winds from the SSE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 27F. Winds from the SSW at 5 to 10 mph.

  • Wednesday

    Overcast. High of 50F. Winds from the South at 5 to 10 mph.

  • Wednesday Night

    Overcast with a chance of rain. Fog overnight. Low of 25F. Winds from the SSE at 10 to 15 mph. Chance of rain 20%.

  • Thursday

    Overcast. Fog early. High of 45F. Breezy. Winds from the South at 15 to 20 mph.

  • Thursday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 37F. Breezy. Winds from the SW at 10 to 20 mph shifting to the WNW after midnight. Chance of rain 20%.

  • Friday

    Mostly cloudy. High of 39F. Winds from the North at 5 to 15 mph.

  • Friday Night

    Mostly cloudy. Fog overnight. Low of 30F. Winds less than 5 mph.

  • Saturday

    Clear. High of 43F. Winds less than 5 mph.

  • Saturday Night

    Clear. Fog overnight. Low of 28F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 39F. Winds less than 5 mph.

  • Sunday Night

    Mostly cloudy. Fog overnight. Low of 27F. Winds less than 5 mph.

  • Monday

    Clear. Fog early. High of 36F. Winds less than 5 mph.

  • Monday Night

    Clear. Fog overnight. Low of 27F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: St. Ann, MO, St. Ann, MO

Updated: 12:41 AM CST

Temperature: 25.0 °F Dew Point: 21 °F Humidity: 84% Wind: SSE at 2.7 mph Pressure: 30.32 in Hourly Precipitation: - Windchill: 25 °F Graphs

Location: 1 Mile South of St. Louis Lambert Airport, Woodson Terrace, MO

Updated: 12:44 AM CST

Temperature: 24.5 °F Dew Point: 20 °F Humidity: 83% Wind: SE at 2.0 mph Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 12:35 AM CST

Temperature: 25.4 °F Dew Point: 20 °F Humidity: 80% Wind: SE at 5.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 19 °F Graphs

Location: City of Olivette - Public Works, Olivette, MO

Updated: 12:42 AM CST

Temperature: 25.9 °F Dew Point: 20 °F Humidity: 79% Wind: ESE at 7.0 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 12:44 AM CST

Temperature: 26.5 °F Dew Point: 20 °F Humidity: 76% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 12:43 AM CST

Temperature: 26.2 °F Dew Point: 22 °F Humidity: 82% Wind: Calm Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 12:44 AM CST

Temperature: 26.8 °F Dew Point: 20 °F Humidity: 76% Wind: NW at 1.2 mph Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 12:44 AM CST

Temperature: 26.1 °F Dew Point: 22 °F Humidity: 83% Wind: SSE at 4.7 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 12:40 AM CST

Temperature: 27.1 °F Dew Point: 21 °F Humidity: 77% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 12:43 AM CST

Temperature: 25.3 °F Dew Point: 21 °F Humidity: 84% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: De Smet Jesuit High School, Creve Coeur, MO

Updated: 12:43 AM CST

Temperature: 24.4 °F Dew Point: 19 °F Humidity: 81% Wind: ESE at 8.0 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: APRSWXNET St. Louis MO US, Saint Louis, MO

Updated: 12:13 AM CST

Temperature: 27 °F Dew Point: 21 °F Humidity: 79% Wind: SE at 3 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Ladue, St. Louis, MO

Updated: 12:40 AM CST

Temperature: 26.6 °F Dew Point: - Humidity: 72% Wind: North at - Pressure: 29.74 in Hourly Precipitation: - Windchill: 27 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 12:40 AM CST

Temperature: 26.4 °F Dew Point: 21 °F Humidity: 80% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 12:41 AM CST

Temperature: 26.9 °F Dew Point: 22 °F Humidity: 80% Wind: South at 4.0 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 12:44 AM CST

Temperature: 24.9 °F Dew Point: 20 °F Humidity: 82% Wind: ESE at 3.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Parkridge, Brentwood, MO

Updated: 12:44 AM CST

Temperature: 25.5 °F Dew Point: - Humidity: - Wind: East at 1.6 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 12:44 AM CST

Temperature: 25.9 °F Dew Point: 20 °F Humidity: 80% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 12:43 AM CST

Temperature: 25.7 °F Dew Point: 22 °F Humidity: 84% Wind: Calm Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Jost Farm, Florissant, MO

Updated: 12:39 AM CST

Temperature: 23.7 °F Dew Point: 14 °F Humidity: 65% Wind: SW at 3.1 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 12:29 AM CST

Temperature: 25.5 °F Dew Point: 20 °F Humidity: 81% Wind: Calm Pressure: 30.40 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Stable Ridge Estates, Saint Charles, MO

Updated: 12:43 AM CST

Temperature: 25.0 °F Dew Point: 14 °F Humidity: 62% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 12:40 AM CST

Temperature: 25.9 °F Dew Point: 21 °F Humidity: 83% Wind: North at - Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Forest Park, St. Louis, MO

Updated: 12:40 AM CST

Temperature: 25.2 °F Dew Point: - Humidity: 72% Wind: North at - Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 12:30 AM CST

Temperature: 27.1 °F Dew Point: 11 °F Humidity: 51% Wind: Calm Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 12:40 AM CST

Temperature: 25.2 °F Dew Point: 20 °F Humidity: 80% Wind: NNE at 4.0 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 12:29 AM CST

Temperature: 25.9 °F Dew Point: 21 °F Humidity: 81% Wind: East at 2.2 mph Pressure: 30.22 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 12:44 AM CST

Temperature: 26.8 °F Dew Point: 19 °F Humidity: 72% Wind: Calm Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 12:43 AM CST

Temperature: 27.1 °F Dew Point: 22 °F Humidity: 81% Wind: ENE at 4.0 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: East Madison, Kirkwood, MO, Kirkwood, MO

Updated: 12:44 AM CST

Temperature: 25.2 °F Dew Point: 21 °F Humidity: 83% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: RAWS MBOT MO US, Saint Louis, MO

Updated: 12:19 AM CST

Temperature: 25 °F Dew Point: 19 °F Humidity: 77% Wind: SE at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Crest Ave. Kirkwood MO, St. Louis, MO

Updated: 9:48 PM CST

Temperature: 27.1 °F Dew Point: 23 °F Humidity: 83% Wind: SW at 1.7 mph Pressure: 30.39 in Hourly Precipitation: - Windchill: 27 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 12:44 AM CST

Temperature: 26.7 °F Dew Point: 21 °F Humidity: 78% Wind: ENE at 1.0 mph Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated aviation 
National Weather Service St Louis MO 
1145 PM CST Thu Nov 27 2014 


Update: 
issued at 935 PM CST Thu Nov 27 2014 


Made an update earlier this evening for clouds and temps, and just 
sent out another update. Temperatures fell pretty quickly across 
northeast MO and western Illinois after sunset where there is some 
residual snow cover and winds are very light within the center of 
the retreating surface high. Meanwhile mid level warm advection 
clouds have rapidly advanced across all but parts of south central 
IL, and the clouds should overspread that area within the next 
hour or so. Once the clouds move in, the temps should steady out 
and then eventually rise a bit overnight as southeast winds 
increase in the wake of the retreating surface high. 


Glass 


&& 


Short term: (through late tonight) 
issued at 245 PM CST Thu Nov 27 2014 


Surface ridge to begin moving off to the east tonight allowing winds 
to become southerly by daybreak. Lingering mid and high clouds to 
keep temperatures from dropping like a brick but will still see lows 
in the upper teens to mid 20s. 


Byrd 


Long term: (friday through next thursday) 
issued at 245 PM CST Thu Nov 27 2014 


On Friday, we begin to warm up as winds pickup from the south, 
gusting to near 25 mph at times, under mostly sunny skies. Highs 
will be in the mid 40s to mid 50s. Milder Friday night with lows 
in the mid 30s to mid 40s. 


Saturday forecast a bit tricky. Models try to develop some light qpf 
in warm sector ahead of next frontal boundary. Feel that it is 
overdone and that it will be dry. Thus with models trying to develop 
precipitation it is also indicating more clouds. Backed off on cloud 
cover a bit to be partly cloudy across my area. Warm southerly winds 
to persist so will see highs in the mid 50s to mid 60s. 


Saturday night models begin to bring frontal boundary into forecast 
area. Sided with the slightly slower NAM/European model (ecmwf) solutions. So expect 
another mild night in the low 40s to low 50s. On Sunday front to 
move through forecast area. So will see a wide range in high 
temperatures ranging from the mid 50s far north to the upper 60s far 
south. Low level moisture on the increase ahead of front so could 
see some light precipitation develop over southeast half of 
forecast area. Then as front pushes south of forecast area late 
Sunday into Sunday night precipitation to shift a bit further 
south...but could see some activity as far north as i70 corridor. 
With colder air filtering in will see rain mix with and snow at 
times. On Monday, as surface ridge settles into region, some 
lingering mixed precipitation across far southern portions of 
forecast area as highs will only be in the upper 20s to upper 30s. 


Beyond that, extended models have very different solutions for 
weather across the area around mid week. So confidence is low an any 
of them. GFS keeps zonal flow and wants to bring in precipitation 
for Wednesday night and Thursday while European model (ecmwf) wants to bring in an 
upper level trof centered over Great Lakes and strong surface ridge 
which would mean dry and cold conditions. For now have slight 
chance/low end chance pops for this period with highs in the 40s and 
lows in the upper 20s to mid 30s. 


Byrd 


&& 


Aviation: (for the 06z tafs through 06z Friday night) 
issued at 1145 PM CST Thu Nov 27 2014 


VFR conditions and dry weather will continue thru the valid taf 
period. A ridge of high pressure has now moved to our east and has 
initiated a light easterly flow. This will then strengthen and 
veer south after daybreak on Friday...and then slacken off a bit 
while remaining from the south Friday night. Low level wind shear conditions 
should be briefly met over in cou and uin early Friday morning as 
a 40-45kt low level jet moves overhead and then mix out by late 
morning as gusts. May see low level wind shear conditions again later Friday night 
for all taf sites but will deal with that on later issuances. 


Specifics for kstl: VFR and dry weather thru much of the period. 
VFR cigs will exit late tonight as winds veer from the south and 
become gusty after daybreak on Friday. A moderate south wind will 
continue into Friday night. Low level wind shear conditions of a marginal nature 
could threaten Friday night and will merit some watching for 
future issuances. Along with the low level jet developing for 
Friday night, model data continues to strongly suggest non-VFR 
stratus developing late in the night. Have introduced cigs at the 
1500ft level for now, with data supportive to a degree of IFR 
cigs. 


Tes 


&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...none. 
&& 


$$ 


Weather forecast office lsx 








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