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

32°F

0°C

Humidity 80%
Wind Speed N 10 mph
Barometer 30.23 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 7 Dec 5:50 pm CST
Extended Forecast for

Brighton IL

  • Tonight

    Tonight: Cloudy, then clearing toward daybreak, with a low around 19. North wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 19 °F

    Clearing Late

  • Monday

    Monday: Sunny, with a high near 32. North wind around 6 mph becoming light and variable.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. South wind 5 to 11 mph.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. South wind 13 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then clearing toward daybreak, with a low around 19. North wind 6 to 13 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 32. North wind around 6 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 23. South wind 5 to 11 mph.
Tuesday
Mostly sunny, with a high near 49. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South wind 13 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 25.
Thursday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 4.
Saturday
Partly sunny and cold, with a high near 17.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 23.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brighton IL
 39.04°N 90.13°W (Elev. 650 ft)
Last Update:
4:46 pm CST Dec 7, 2025
Forecast Valid:
5pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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