Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast and Breezy

27°F

-3°C

Humidity 59%
Wind Speed W 23 G 29 mph
Barometer 30.11 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 16 Mar 7:50 pm CDT
Extended Forecast for

Saint Jacob IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 34. Northwest wind 7 to 9 mph becoming southwest in the afternoon.

    High: 34 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a slight chance of rain.  Cloudy, with a low around 30. Southeast wind 7 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 40%.

    Low: 30 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. South wind 11 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. South wind 3 to 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 15. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 34. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A chance of snow before 4am, then a slight chance of rain. Cloudy, with a low around 30. Southeast wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 63. South wind 11 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 42. South wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Jacob IL
 38.74°N 89.77°W (Elev. 453 ft)
5:31 pm CDT Mar 16, 2026
8pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database