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.

A Few Clouds

72°F

22°C

Humidity 29%
Wind Speed W 15 mph
Barometer 29.69 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Nov 2:50 pm CST
Extended Forecast for

Brighton IL

  • Tonight

    Tonight: Mostly clear, with a low around 41. West wind 5 to 8 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Rain likely, mainly after 5pm. Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

    High: 63 °F

    Mostly Cloudy
    then Rain
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 34. Northwest wind 8 to 16 mph.

    Low: 34 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain and flurries before 1pm, then a chance of sprinkles and flurries between 1pm and 4pm, then a chance of flurries after 4pm. Mostly sunny, with a high near 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 39 °F

    Breezy.
    Slight Chance
    Rain then
    Chance
    Sprinkles/Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Mostly clear, with a low around 23. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 41. West wind 5 to 8 mph.
Saturday
Rain likely, mainly after 5pm. Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 34. Northwest wind 8 to 16 mph.
Sunday
A chance of rain and flurries before 1pm, then a chance of sprinkles and flurries between 1pm and 4pm, then a chance of flurries after 4pm. Mostly sunny, with a high near 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
A chance of flurries before midnight. Mostly clear, with a low around 23. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 65.
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:
3:16 pm CST Nov 7, 2025
Forecast Valid:
3pm CST Nov 7, 2025-6pm CST Nov 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