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.

Partly Cloudy

25°F

-4°C

Humidity 50%
Wind Speed NW 16 G 24 mph
Barometer 30.47 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 22 Feb 10:45 am CST
Extended Forecast for

Brighton IL

  • Today

    Today: Sunny, with a high near 28. Blustery, with a northwest wind 21 to 23 mph, with gusts as high as 32 mph.

    High: 28 °F

    Sunny and
    Blustery

  • Tonight

    Tonight: Increasing clouds, with a low around 13. Northwest wind 15 to 18 mph, with gusts as high as 31 mph.

    Low: 13 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 32. Northwest wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 19 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52. South wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 49.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 28. Blustery, with a northwest wind 21 to 23 mph, with gusts as high as 32 mph.
Tonight
Increasing clouds, with a low around 13. Northwest wind 15 to 18 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 32. Northwest wind 8 to 16 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Mostly cloudy, with a high near 52. South wind 10 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 39.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brighton IL
 39.04°N 90.13°W (Elev. 650 ft)
Last Update:
11:06 am CST Feb 22, 2026
Forecast Valid:
11am CST Feb 22, 2026-6pm CST Feb 28, 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