Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist Rain

70°F

21°C

Humidity 94%
Wind Speed SE 8 mph
Barometer 30.02 in
Dewpoint 68°F (20°C)
Visibility 2.00 mi
Last update 15 Oct 9:50 am CDT
Extended Forecast for

Saint Jacob IL

  • Today

    Today: Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall.  High near 81. Southwest wind 8 to 11 mph.  Chance of precipitation is 100%.

    High: 81 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am.  Increasing clouds, with a low around 47. Southwest wind 9 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph.  Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Friday

    Friday: Sunny through mid morning, then becoming mostly cloudy, with a high near 57. Breezy, with a northwest wind 18 to 23 mph.

    High: 57 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 8 to 18 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 60. North wind around 6 mph becoming calm  in the afternoon.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 81. Southwest wind 8 to 11 mph. Chance of precipitation is 100%.
Tonight
Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Increasing clouds, with a low around 47. Southwest wind 9 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Friday
Sunny through mid morning, then becoming mostly cloudy, with a high near 57. Breezy, with a northwest wind 18 to 23 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 8 to 18 mph.
Saturday
Sunny, with a high near 60. North wind around 6 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Saint Jacob IL
 38.7°N 89.8°W (Elev. 482 ft)
11:21 am CDT Oct 15, 2026
11am CDT Oct 15, 2026-6pm CDT Oct 21, 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