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

73°F

23°C

Humidity 25%
Wind Speed N 14 G 25 mph
Barometer 30.02 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 13 May 4:50 pm CDT
Extended Forecast for

2 Miles SSW Brighton IL

  • Tonight

    Tonight: Clear, with a low around 44. North wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 44 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind 8 to 11 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 44. North wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 73. Light southeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind 8 to 11 mph.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 68.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Brighton IL
 39.02°N 90.16°W (Elev. 636 ft)
Last Update:
4:51 pm CDT May 13, 2026
Forecast Valid:
5pm CDT May 13, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation