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

50°F

10°C

Humidity 94%
Wind Speed N 7 mph
Barometer 29.99 in
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Wind Chill47°F (8°C)
Last update 5 Mar 8:45 am CST
Extended Forecast for

5 Miles E Carlinville IL

  • Today

    Today: A 30 percent chance of showers, mainly before 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 63. Light and variable wind becoming west 5 to 9 mph.

    High: 63 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 52. Light and variable wind becoming southeast 5 to 10 mph in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: A chance of showers and thunderstorms before 9am, then a slight chance of showers after noon. Patchy fog before 7am. Otherwise, partly sunny, with a high near 76. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65. Southwest wind 10 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly before 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 63. Light and variable wind becoming west 5 to 9 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 52. Light and variable wind becoming southeast 5 to 10 mph in the evening.
Friday
A chance of showers and thunderstorms before 9am, then a slight chance of showers after noon. Patchy fog before 7am. Otherwise, partly sunny, with a high near 76. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65. Southwest wind 10 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Mostly clear, with a low around 56.
Tuesday
Showers and possibly a thunderstorm. High near 74. Breezy. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
Last Update:
8:41 am CST Mar 5, 2026
Forecast Valid:
9am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation