National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

67°F

19°C

Humidity 94%
Wind Speed W 5 mph
Barometer 30.13 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 5 Aug 12:55 am CDT
Extended Forecast for

Brighton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. East wind around 5 mph becoming calm in the afternoon.

    High: 82 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. East wind 3 to 5 mph.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Southeast wind 3 to 5 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. East wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 66. East wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.
Wednesday Night
Mostly clear, with a low around 68. Southeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A 30 percent chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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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:
10:06 pm CDT Aug 4, 2025
Forecast Valid:
1am CDT Aug 5, 2025-6pm CDT Aug 11, 2025
 
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