National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

34°F

1°C

Humidity 51%
Wind Speed Vrbl 3 mph
Barometer 30.40 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 28 Nov 4:45 pm CST
Extended Forecast for

Gillespie IL

Winter Storm Warning November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Snow, mainly after 3am. Low around 28. Southeast wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of around an inch possible.

    Low: 28 °F

    Slight Chance
    Snow then
    Snow

  • Saturday

    Saturday: Rain and snow, possibly mixed with sleet before 2pm, then rain, possibly mixed with snow. The snow could be heavy at times. High near 35. Breezy, with a southeast wind 15 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 5 inches possible.

    High: 35 °F

    Wintry Mix
    and Breezy

  • Saturday Night

    Saturday Night: Rain and snow likely before 10pm, then a slight chance of snow between 10pm and midnight. Cloudy, with a low around 22. Breezy, with a south wind 17 to 21 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 22 °F

    Breezy.
    Rain/Snow
    Likely then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 27. Northwest wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 27 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon. Cloudy, with a high near 28.

    High: 28 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 3am. Low around 28. Southeast wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of around an inch possible.
Saturday
Rain and snow, possibly mixed with sleet before 2pm, then rain, possibly mixed with snow. The snow could be heavy at times. High near 35. Breezy, with a southeast wind 15 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 5 inches possible.
Saturday Night
Rain and snow likely before 10pm, then a slight chance of snow between 10pm and midnight. Cloudy, with a low around 22. Breezy, with a south wind 17 to 21 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 27. Northwest wind 10 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 15. Northwest wind 5 to 8 mph becoming calm after midnight.
Monday
A 30 percent chance of snow after noon. Cloudy, with a high near 28.
Monday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
Partly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gillespie IL
 39.12°N 89.81°W (Elev. 653 ft)
Last Update:
4:46 pm CST Nov 28, 2025
Forecast Valid:
5pm CST Nov 28, 2025-6pm CST Dec 5, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation