Saint Ann, Missouri Weather Conditions

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Current Conditions

  • 37°
  • Overcast
  • Wind: NNW 12 mph
  • Humidity: 62%
  • Visibility: 10.0 miles
  • Dew Point: 25°
  • Pressure: 30.44 in. +
  • Heat Index: 29

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
36°
28°
27°
30°
34°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Clear
  • High: 37 °
  • Low: 27 °
  • Clear
  • Saturday
  • Rain
  • High: 45 °
  • Low: 34 °
  • Rain
  • Sunday
  • Snow
  • High: 36 °
  • Low: 9 °
  • Snow
  • Monday
  • Partly Cloudy
  • High: 25 °
  • Low: 19 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 46 °
  • Low: 21 °
  • Partly Cloudy

Forecast for Saint Ann, Missouri

Updated: 9:00 PM CST on January 29, 2015

  • Thursday

    Overcast. High of 48F. Breezy. Winds from the NW at 15 to 20 mph with gusts to 30 mph.

  • Thursday Night

    Overcast in the evening, then clear. Low of 27F. Winds from the NW at 10 to 15 mph.

  • Friday

    Clear. High of 37F. Winds from the North at 5 to 10 mph.

  • Friday Night

    Overcast in the evening, then partly cloudy. Low of 27F. Winds less than 5 mph.

  • Saturday

    Overcast with a chance of rain in the afternoon. High of 45F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.

  • Saturday Night

    Overcast with snow and rain. Low of 34F. Winds from the SSE at 5 to 10 mph. Chance of snow 70%.

  • Sunday

    Overcast with snow. High of 36F with a windchill as low as 25F. Winds from the East at 5 to 15 mph shifting to the NNE in the afternoon. Chance of snow 80%.

  • Sunday Night

    Clear with a chance of snow in the evening, then overcast. Low of 9F with a windchill as low as 0F. Breezy. Winds from the North at 15 to 20 mph.

  • Monday

    Clear in the morning, then overcast. High of 25F. Winds from the NNW at 5 to 15 mph shifting to the SW in the afternoon.

  • Monday Night

    Partly cloudy with a chance of snow after midnight. Fog overnight. Low of 19F with a windchill as low as 5F. Breezy. Winds from the SSE at 10 to 20 mph. Chance of snow 20%.

  • Tuesday

    Partly cloudy. Fog early. High of 46F. Breezy. Winds from the SSW at 10 to 20 mph.

  • Tuesday Night

    Mostly cloudy. Fog overnight. Low of 21F. Breezy. Winds from the SSW at 10 to 20 mph.

  • Wednesday

    Clear. High of 36F with a windchill as low as 7F. Breezy. Winds from the NNW at 20 to 25 mph.

  • Wednesday Night

    Clear. Low of -2F with a windchill as low as -8F. Breezy. Winds from the NW at 10 to 20 mph.

  • Thursday

    Clear. High of 32F. Winds from the North at 5 to 15 mph.

  • Thursday Night

    Clear. Low of 12F with a windchill as low as 0F. Winds from the SE at 5 to 15 mph.

  • Friday

    Clear. High of 34F. Winds from the SW at 5 to 20 mph.

  • Friday Night

    Clear. Fog overnight. Low of 21F. Winds less than 5 mph.

  • Saturday

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

  • Saturday Night

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

  • Sunday

    Clear. High of 52F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear with a chance of snow. Low of 30F. Winds less than 5 mph. Chance of snow 20%.

  • Monday

    Clear. High of 54F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 30F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Special Statement  Statement as of 4:36 PM CST on January 29, 2015


... Potential winter storm this weekend...

A storm system will bring accumulating snow to most of our region
Saturday night and Sunday. Mainly rain is expected to develop on
Saturday... and then change over to snow Saturday night. Although
it is too early to pin down exact snow totals... at this time it
appears that the highest snowfall amounts will occur across
northeast Missouri and west central Illinois where 4 to 6 inches
is possible. Further south across central into southeast Missouri
as well as southwest Illinois about 2 to 4 inches is possible.

As the rain changes over to snow Saturday night untreated roads
may become snow covered and slippery. Please keep abreast of the
latest forecasts and possible watches... warnings or advisories. Be
prepared for potential hazardous travel conditions Saturday night
and Sunday.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 10:38 PM CST

Temperature: 35.8 °F Dew Point: 29 °F Humidity: 75% Wind: WNW at 4.2 mph Pressure: 30.35 in Hourly Precipitation: - Windchill: 32 °F Graphs

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

Updated: 10:47 PM CST

Temperature: 35.2 °F Dew Point: 28 °F Humidity: 75% Wind: WNW at 2.0 mph Pressure: 30.48 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: APRSWXNET Maryland Heights MO US, Maryland Heights, MO

Updated: 10:18 PM CST

Temperature: 37 °F Dew Point: 28 °F Humidity: 69% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 10:43 PM CST

Temperature: 37.4 °F Dew Point: 27 °F Humidity: 65% Wind: WNW at 5.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: APRSWXNET Olivette MO US, Saint Louis, MO

Updated: 10:12 PM CST

Temperature: 36 °F Dew Point: 28 °F Humidity: 72% Wind: NW at 4 mph Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

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

Updated: 10:47 PM CST

Temperature: 36.7 °F Dew Point: 27 °F Humidity: 67% Wind: NNW at 8.0 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 10:46 PM CST

Temperature: 36.9 °F Dew Point: 26 °F Humidity: 65% Wind: WNW at 2.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 10:47 PM CST

Temperature: 36.9 °F Dew Point: 28 °F Humidity: 69% Wind: Calm Pressure: 30.48 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: APRSWXNET Ladue MO US, Saint Louis, MO

Updated: 10:17 PM CST

Temperature: 36 °F Dew Point: 27 °F Humidity: 70% Wind: NNW at 5 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

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

Updated: 10:13 PM CST

Temperature: 36 °F Dew Point: 26 °F Humidity: 68% Wind: Calm Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 10:47 PM CST

Temperature: 35.2 °F Dew Point: 25 °F Humidity: 67% Wind: SSW at 2.3 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 10:47 PM CST

Temperature: 36.9 °F Dew Point: 27 °F Humidity: 67% Wind: NW at 3.0 mph Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: APRSWXNET Creve Coeur MO US, Saint Louis, MO

Updated: 10:20 PM CST

Temperature: 37 °F Dew Point: 27 °F Humidity: 68% Wind: NW at 2 mph Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 10:46 PM CST

Temperature: 36.5 °F Dew Point: 28 °F Humidity: 71% Wind: WNW at 6.8 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Morehouse Lane, University City, MO

Updated: 10:45 PM CST

Temperature: 41.2 °F Dew Point: 28 °F Humidity: 60% Wind: North at - Pressure: 30.50 in Hourly Precipitation: - Windchill: 41 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 10:47 PM CST

Temperature: 36.5 °F Dew Point: 28 °F Humidity: 70% Wind: NNW at 6.0 mph Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Ladue, St. Louis, MO

Updated: 10:40 PM CST

Temperature: 37.2 °F Dew Point: - Humidity: 63% Wind: North at - Pressure: 29.75 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 10:42 PM CST

Temperature: 36.7 °F Dew Point: 28 °F Humidity: 69% Wind: NW at 2.9 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 10:45 PM CST

Temperature: 36.9 °F Dew Point: 28 °F Humidity: 71% Wind: SSW at 6.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 10:46 PM CST

Temperature: 35.3 °F Dew Point: 26 °F Humidity: 70% Wind: West at 6.0 mph Pressure: 30.47 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Parkridge, Brentwood, MO

Updated: 10:46 PM CST

Temperature: 36.7 °F Dew Point: - Humidity: - Wind: NW at 5.4 mph Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 10:46 PM CST

Temperature: 36.0 °F Dew Point: 26 °F Humidity: 66% Wind: SSE at 3.1 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 10:46 PM CST

Temperature: 36.1 °F Dew Point: 27 °F Humidity: 68% Wind: NNE at 1.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Ballas Courts, Saint Louis, MO

Updated: 10:46 PM CST

Temperature: 36.5 °F Dew Point: 22 °F Humidity: 56% Wind: NW at 8.1 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Fawnridge Drive, Saint Louis, MO

Updated: 10:46 PM CST

Temperature: 36.3 °F Dew Point: 28 °F Humidity: 70% Wind: North at - Pressure: 30.53 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 10:45 PM CST

Temperature: 36.3 °F Dew Point: 26 °F Humidity: 67% Wind: North at 2.7 mph Pressure: 30.41 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 10:41 PM CST

Temperature: 35.6 °F Dew Point: 27 °F Humidity: 71% Wind: ESE at 198.2 mph Pressure: 31.23 in Hourly Precipitation: - Windchill: 10 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 10:45 PM CST

Temperature: 36.9 °F Dew Point: 29 °F Humidity: 72% Wind: North at - Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Forest Park, St. Louis, MO

Updated: 10:40 PM CST

Temperature: 35.6 °F Dew Point: - Humidity: 62% Wind: North at - Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 36 °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 
534 PM CST Thu Jan 29 2015 


Short term: (through late tonight) 
issued at 358 PM CST Thu Jan 29 2015 


Although a few light flurries or sprinkles are still possible late 
this afternoon, the secondary vort Max which was providing weak 
ascent will have moved east of the County Warning Area by this evening. Gusty 
northwest winds will start to subside overnight and turn northerly 
in response to an area of high pressure which will be sliding into 
the region. Overnight lows will be much cooler than last night due 
to the colder Post-frontal air mass. 


Kanofsky 


Long term: (friday through next thursday) 
issued at 358 PM CST Thu Jan 29 2015 


The low level cloud cover should advect east of our forecast area 
Friday morning as the upper level trough shifts well east of the 
region and the strong surface ridge axis moves southeastward through 
the forecast area on Friday. Despite the solar insolation expected 
the highs will be quite cold, although close to seasonal normals for 
late January. Mid-high level clouds will move into the region 
Friday night ahead of the approaching storm system. Rain should 
spread northeastward into northeast and central portions of MO on 
Saturday with increasing low-mid level moisture well ahead of the 
southwestern US upper level low. The NAM model was also depicting 
mid level frontogenetical forcing across northeast MO and west 
central Illinois south of an approaching cold front moving southward into 
southern Iowa. If the precipitation comes in early enough on 
Saturday there could be a brief period of snow and sleet, but it 
appears that the surface layer will warm up enough that most of the 
precipitation on Saturday will be in the form of liquid rain. The 
precipitation should spread through the entire area by Saturday 
evening and become heavier Saturday night as a strong northern 
stream shortwave approaches our area. Upper level divergence will 
also be increasing over our region in the right entrance region of 
an upper level jet streak over the Great Lakes region. The rain 
will change over to snow Saturday night as the cold front sags 
southward through our area, along with increasing upward vertical 
motion leading to more pseudo adiabatic cooling. The better snow 
accumulations Saturday night should be north and west of stl. 
Precipitation in the form of snow will continue on Sunday for most 
of our area as the upper level trough deepens over the region and a 
surface low develops and moves northeastward through Arkansas and into the 
Tennessee Valley region. Prefer the GFS and European model (ecmwf) model solutions as the 
NAM seems too deep with the surface low and a little too high on its 
quantitative precipitation forecast. There may be some lingering light snow or flurries Sunday 
evening, but most of the accumulating snow should be over by this 
time as a surface ridge builds southeastward into the region with 
strong low level cold air advection and colder, below normal minimum 
temperatures expected Sunday night. Although there is still plenty 
of model uncertainty it appears at this time that the highest snow 
accumulations will likely occur across northeast MO and west central 
Illinois with around 4-6 inches possible. Lesser amounts of around 2 to 4 
inches are possible further south across the rest of our area. 
Later shifts may need to issue a Winter Storm Watch for a portion of 
the area as forecast confidence grows, and if the prefered models 
indicate more quantitative precipitation forecast along with a quicker changeover from rain to 
snow. The GFS and European model (ecmwf) models had a northwest flow, clipper type 
shortwave for Monday night, but it appears that any accumulating 
snow with this system will be north of the forecast area. A cold 
front will drop southeastward through our region Tuesday night and 
Wednesday morning as an upper level trough deepens over the Great 
Lakes region. This may bring some light rain/snow to our area, 
followed by very cold temperatures for Wednesday night and 
Thursday. 


Gks 


&& 


Aviation: (for the 00z tafs through 00z Friday evening) 
issued at 530 PM CST Thu Jan 29 2015 


Primary concern for tonight and into early on Friday will be on 
timing the dissipation/scattering out of MVFR ceilings across the 
region. Current satellite imagery depicts overcast MVFR stratus deck up 
into Minnesota slowly sliding south and east. Believe tonight will 
continue to be overcast with scattering out of stratus by mid 
morning. Surface ridge will move toward area by Friday afternoon 
yielding light and variable winds. 




Specifics for kstl: 


Primary concern for tonight and into early on Friday will be on 
timing the dissipation/scattering out of MVFR ceilings. Current 
satellite imagery depicts overcast MVFR stratus deck up into Minnesota 
slowly sliding south and east. Believe tonight will continue to be 
overcast with scattering out of stratus around 1400 UTC. Surface 
ridge will move toward area by Friday afternoon yielding light and 
variable winds heading into Friday night. 


Gosselin 


&& 


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


$$ 


Weather forecast office lsx 



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