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.

Overcast

45°F

7°C

Humidity 93%
Wind Speed N 8 mph
Barometer 29.89 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 15 Feb 4:55 am CST
Extended Forecast for

5 Miles N East Gillespie IL

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 55. Northeast wind 5 to 9 mph becoming light and variable in the afternoon.

    High: 55 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 61. South wind 6 to 14 mph.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. South wind 7 to 9 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Breezy.

    Low: 54 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 55. Northeast wind 5 to 9 mph becoming light and variable in the afternoon.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.
Washington's Birthday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 61. South wind 6 to 14 mph.
Monday Night
Mostly cloudy, with a low around 42. South wind 7 to 9 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 54. Breezy.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 67.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 35.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N East Gillespie IL
 39.21°N 89.83°W (Elev. 650 ft)
Last Update:
4:21 am CST Feb 15, 2026
Forecast Valid:
5am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

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Chance of Precipitation