Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

79°F

26°C

Humidity 48%
Wind Speed W 13 mph
Barometer 29.73 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Jun 5:50 pm CDT
Extended Forecast for

Carlinville IL

Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Partly sunny, with a high near 88. Breezy, with a southeast wind 9 to 14 mph becoming southwest 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 88 °F

    Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms, mainly before 10pm.  Low around 64. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 34 mph.  Chance of precipitation is 80%.

    Low: 64 °F

    T-storms and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Northwest wind around 9 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. Breezy, with a southeast wind 9 to 14 mph becoming southwest 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph.
Wednesday Night
Showers and thunderstorms, mainly before 10pm. Low around 64. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%.
Thursday
Mostly sunny, with a high near 76. Northwest wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Carlinville IL
 39.3°N 89.89°W (Elev. 623 ft)
5:51 pm CDT Jun 16, 2026
6pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database