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

55°F

13°C

Humidity 63%
Wind Speed SE 12 mph
Barometer 29.68 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 15 Mar 1:15 am CDT
Extended Forecast for

Carlinville IL

Wind Advisory March 15, 10:00am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. South wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms before 3pm, then rain likely between 3pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 65. Breezy, with a south wind 22 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 90%.

    High: 65 °F

    Breezy.
    Chance
    T-storms then
    Rain

  • Sunday Night

    Sunday Night: Rain before 9pm, then a chance of rain and snow between 9pm and 10pm, then a chance of snow after 10pm. Some thunder is also possible. Low around 18. Windy, with a west wind 24 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Rain/Snow and
    Breezy then
    Chance Snow
    and Windy

  • Monday

    Monday: A 30 percent chance of snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 27. Blustery, with a northwest wind 25 to 29 mph, with gusts as high as 44 mph.

    High: 27 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 28 mph.

    Low: 10 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. South wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday
A chance of rain and thunderstorms before 3pm, then rain likely between 3pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 65. Breezy, with a south wind 22 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 9pm, then a chance of rain and snow between 9pm and 10pm, then a chance of snow after 10pm. Some thunder is also possible. Low around 18. Windy, with a west wind 24 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 27. Blustery, with a northwest wind 25 to 29 mph, with gusts as high as 44 mph.
Monday Night
Partly cloudy, with a low around 10. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carlinville IL
 39.3°N 89.89°W (Elev. 623 ft)
Last Update:
11:16 pm CDT Mar 14, 2026
Forecast Valid:
1am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation