National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Light Drizzle

58°F

14°C

Humidity 88%
Wind Speed NW 14 G 21 mph
Barometer 30.05 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 16 Oct 12:15 am CDT
Extended Forecast for

5 Miles W Carlinville IL

  • Overnight

    Overnight: Isolated showers before 1am. Cloudy, with a low around 46. Northwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Isolated
    Showers

  • Friday

    Friday: Scattered showers, mainly between 1pm and 3pm. Increasing clouds, with a high near 54. Northwest wind 15 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    High: 54 °F

    Partly Sunny
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. North wind 7 to 16 mph, with gusts as high as 29 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33. Light and variable wind.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers before 1am. Cloudy, with a low around 46. Northwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday
Scattered showers, mainly between 1pm and 3pm. Increasing clouds, with a high near 54. Northwest wind 15 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. North wind 7 to 16 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 33. Light and variable wind.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Carlinville IL
 39.3°N 89.97°W (Elev. 623 ft)
Last Update:
10:26 pm CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 16, 2026-6pm CDT Oct 22, 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