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

32°F

0°C

Humidity 37%
Wind Speed Vrbl 5 mph
Barometer 30.46 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 23 Feb 4:50 pm CST
Extended Forecast for

3 Miles NE Brighton IL

  • Tonight

    Tonight: Mostly clear, with a low around 19. Light and variable wind becoming south 5 to 9 mph after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 38 mph.

    High: 53 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. Northwest wind around 7 mph becoming northeast in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 34. East wind 6 to 10 mph. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 19. Light and variable wind becoming south 5 to 9 mph after midnight.
Tuesday
Mostly cloudy, with a high near 53. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 31. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 50. Northwest wind around 7 mph becoming northeast in the afternoon.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 34. East wind 6 to 10 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 61.
Friday Night
Clear, with a low around 38.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Brighton IL
 39.06°N 90.1°W (Elev. 600 ft)
Last Update:
2:51 pm CST Feb 23, 2026
Forecast Valid:
5pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
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