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

48°F

9°C

Humidity 87%
Wind Speed N 6 mph
Barometer 30.08 in
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill45°F (7°C)
Last update 3 Mar 7:50 pm CST
Extended Forecast for

Mount Clare IL

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Patchy dense fog before 3am, then patchy dense fog after 4am. Otherwise, cloudy, with a low around 46. Northeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely and
    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Areas of dense fog before noon. High near 60. Northeast wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 80%.

    High: 60 °F

    Showers and
    Areas Dense
    Fog

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Patchy fog between 9pm and 4am. Low around 52. Light and variable wind becoming south 5 to 7 mph in the evening. Chance of precipitation is 90%.

    Low: 52 °F

    T-storms and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. West wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.

    Low: 54 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

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

    High: 77 °F

    Chance
    T-storms then
    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 90%.

    Low: 56 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

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

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm. Patchy dense fog before 3am, then patchy dense fog after 4am. Otherwise, cloudy, with a low around 46. Northeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Areas of dense fog before noon. High near 60. Northeast wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Patchy fog between 9pm and 4am. Low around 52. Light and variable wind becoming south 5 to 7 mph in the evening. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. West wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Breezy. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 73.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 56.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 73. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Clare IL
 39.1°N 89.84°W (Elev. 656 ft)
Last Update:
4:56 pm CST Mar 3, 2026
Forecast Valid:
8pm CST Mar 3, 2026-6pm CDT Mar 10, 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