Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

32°F

0°C

Humidity 60%
Wind Speed E 6 mph
Barometer 30.27 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 8 Dec 2:50 pm CST
Extended Forecast for

Saint Jacob IL

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Light and variable wind becoming south 5 to 10 mph in the evening.

    Low: 24 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Breezy, with a south wind 17 to 22 mph becoming west after midnight. Winds could gust as high as 30 mph.

    Low: 38 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Breezy, with a northwest wind 16 to 26 mph, with gusts as high as 34 mph.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Northwest wind 5 to 11 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow.  Mostly cloudy, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. Light and variable wind becoming south 5 to 10 mph in the evening.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Breezy, with a south wind 17 to 22 mph becoming west after midnight. Winds could gust as high as 30 mph.
Wednesday
Partly sunny, with a high near 46. Breezy, with a northwest wind 16 to 26 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 5 to 11 mph.
Thursday
A 20 percent chance of snow. Mostly cloudy, with a high near 38.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Partly sunny, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Jacob IL
 38.72°N 89.77°W (Elev. 499 ft)
3:16 pm CST Dec 8, 2025
3pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database