Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

43°F

6°C

Humidity 66%
Wind Speed W 18 G 32 mph
Barometer 29.68 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 10 Dec 8:50 am CST
Extended Forecast for

Gillespie IL

Wind Advisory until December 10, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 10, 12:00pm

    NOW until 12:00pm Wed

    Wind Advisory

  • Today

    High: 41 °F

    Breezy.
    Sprinkles/Flurries
    Likely then
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Northwest wind 5 to 11 mph.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 3pm.  Increasing clouds, with a high near 34. Northwest wind around 6 mph becoming light and variable.

    High: 34 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow, mixing with rain after 9pm, then gradually ending.  Mostly cloudy, with a low around 28. Southeast wind 6 to 8 mph becoming west after midnight.  Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 36 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon.  Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Today
Sprinkles and flurries likely, becoming all flurries after 10am, then gradually ending. Cloudy, with a temperature falling to around 31 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 41 mph.
Tonight
Mostly cloudy, with a low around 22. Northwest wind 5 to 11 mph.
Thursday
A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 34. Northwest wind around 6 mph becoming light and variable.
Thursday Night
A chance of snow, mixing with rain after 9pm, then gradually ending. Mostly cloudy, with a low around 28. Southeast wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 36. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Sunny and cold, with a high near 18.
Sunday Night
Mostly clear, with a low around 7.
Monday
Mostly sunny, with a high near 34.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Gillespie IL
 39.12°N 89.81°W (Elev. 653 ft)
8:26 am CST Dec 10, 2025
9am CST Dec 10, 2025-6pm CST Dec 16, 2025
 
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Additional Resources

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