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

18°F

-8°C

Humidity 45%
Wind Speed N 9 mph
Barometer 30.38 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 30 Jan 2:50 pm CST
Extended Forecast for

Gillespie IL

  • This Afternoon

    This Afternoon: A chance of flurries. Sunny and cold, with a high near 16. North wind around 11 mph.

    High: 16 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Wind chill values as low as -10. North wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 2 °F

    Chance
    Flurries

  • Saturday

    Saturday: Increasing clouds and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around -1. Wind chill values as low as -10. Northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: -1 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 25. South wind 5 to 8 mph.

    High: 25 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A chance of flurries. Sunny and cold, with a high near 16. North wind around 11 mph.
Tonight
A chance of flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Wind chill values as low as -10. North wind 8 to 11 mph, with gusts as high as 23 mph.
Saturday
Increasing clouds and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around -1. Wind chill values as low as -10. Northwest wind 5 to 7 mph becoming southwest after midnight.
Sunday
Partly sunny, with a high near 25. South wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 38.
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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:
3:16 pm CST Jan 30, 2026
Forecast Valid:
3pm CST Jan 30, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation