Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

70°F

21°C

Humidity 78%
Wind Speed Vrbl 3 mph
Barometer 30.05 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Jun 8:50 am CDT
Extended Forecast for

6 Miles SW Carlinville IL

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 81. Northwest wind 3 to 5 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 64. Calm wind becoming southeast around 5 mph after midnight.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms. Some of the storms could produce heavy rainfall.  High near 80. Southeast wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 100%.

    High: 80 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 1am.  Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    T-storms

  • Monday

    Monday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 81. Northwest wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 61. Calm wind.
Saturday
Mostly sunny, with a high near 83. Light and variable wind.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Calm wind becoming southeast around 5 mph after midnight.
Sunday
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 80. Southeast wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Low around 62. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Carlinville IL
 39.21°N 89.95°W (Elev. 548 ft)
8:41 am CDT Jun 19, 2026
9am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
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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