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.

Rain

59°F

15°C

Humidity 84%
Wind Speed NW 13 G 23 mph
Barometer 30.04 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Oct 11:55 pm CDT
Extended Forecast for

Brighton IL

  • Overnight

    Overnight: Isolated showers before 1am. Cloudy, with a low around 47. Northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 47 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers after 2pm. Increasing clouds, with a high near 55. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 55 °F

    Breezy.
    Partly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 18 mph, with gusts as high as 30 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35. Light and variable wind.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers before 1am. Cloudy, with a low around 47. Northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
Isolated showers after 2pm. Increasing clouds, with a high near 55. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 18 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 35. Light and variable wind.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brighton IL
 39.04°N 90.16°W (Elev. 653 ft)
Last Update:
10:26 pm CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 16, 2026-6pm CDT Oct 22, 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