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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

30°F

-1°C

Humidity 64%
Wind Speed S 10 mph
Barometer 29.88 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 5 Dec 6:50 pm CST
Extended Forecast for

East Gillespie IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. South wind 6 to 9 mph becoming west after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 35. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 27. Southeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 27 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain before noon, then a slight chance of snow. Mostly cloudy, with a temperature rising to near 35 by 9am, then falling to around 28 during the remainder of the day. South wind 6 to 11 mph becoming north in the morning. Chance of precipitation is 40%.

    High: 35 °F⇓

    Chance Rain
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. North wind 5 to 10 mph.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 25. South wind 6 to 9 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 35. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
A chance of snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 27. Southeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday
A chance of rain before noon, then a slight chance of snow. Mostly cloudy, with a temperature rising to near 35 by 9am, then falling to around 28 during the remainder of the day. South wind 6 to 11 mph becoming north in the morning. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Gillespie IL
 39.14°N 89.81°W (Elev. 663 ft)
Last Update:
4:46 pm CST Dec 5, 2025
Forecast Valid:
7pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation