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.

Fog/Mist

39°F

4°C

Humidity 93%
Wind Speed E 8 mph
Barometer 30.19 in
Dewpoint 37°F (3°C)
Visibility 3.00 mi
Wind Chill33°F (1°C)
Last update 2 Mar 7:50 pm CST
Extended Forecast for

Brighton IL

  • Tonight

    Tonight: Rain, mainly after 4am. Patchy fog after 10pm. Low around 37. East wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 37 °F

    Patchy Fog
    then Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain, with thunderstorms also possible after 3pm. Patchy fog between 7am and 9am. High near 56. East wind around 6 mph. Chance of precipitation is 100%.

    High: 56 °F

    Rain and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 47. Northeast wind around 8 mph. Chance of precipitation is 90%.

    Low: 47 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 63. East wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 63 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 53. South wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 53 °F

    Rain

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.

    Low: 54 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    T-storms then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    T-storms then
    Rain

Detailed Forecast

Tonight
Rain, mainly after 4am. Patchy fog after 10pm. Low around 37. East wind 5 to 7 mph. Chance of precipitation is 90%.
Tuesday
Rain, with thunderstorms also possible after 3pm. Patchy fog between 7am and 9am. High near 56. East wind around 6 mph. Chance of precipitation is 100%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 47. Northeast wind around 8 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 63. East wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 53. South wind 6 to 9 mph. Chance of precipitation is 80%.
Thursday
Rain likely and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 70%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 80%.
Saturday
Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 67. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 46.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 63.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 48.
Monday
A 30 percent chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brighton IL
 39.04°N 90.13°W (Elev. 650 ft)
Last Update:
4:56 pm CST Mar 2, 2026
Forecast Valid:
8pm CST Mar 2, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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