Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

72°F

22°C

Humidity 57%
Wind Speed N 6 mph
Barometer 30.21 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 2 Aug 7:50 pm CDT
Extended Forecast for

Gillespie IL

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northeast wind around 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 79. Northeast wind 6 to 8 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Northeast wind 3 to 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 79. East wind 3 to 6 mph.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. East wind around 5 mph becoming calm  in the evening.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Northeast wind around 6 mph.
Sunday
Sunny, with a high near 79. Northeast wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 61. Northeast wind 3 to 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. East wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Gillespie IL
 39.12°N 89.81°W (Elev. 653 ft)
5:51 pm CDT Aug 2, 2025
8pm CDT Aug 2, 2025-6pm CDT Aug 9, 2025
 
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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