Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

20°F

-7°C

Humidity 84%
Wind Speed W 3 mph
Barometer 30.47 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 28 Nov 5:15 am CST
Extended Forecast for

Saint Jacob IL

Winter Weather Advisory November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: Sunny, with a high near 38. Light and variable wind becoming northwest around 6 mph.

    High: 38 °F

    Sunny

  • Tonight

    Tonight: Snow, mainly after 4am.  Low around 30. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Cloudy then
    Snow

  • Saturday

    Saturday: Snow, possibly mixed with sleet before noon, then rain, possibly mixed with snow and sleet between noon and 3pm, then rain after 3pm. The snow could be heavy at times.  High near 38. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.

    High: 38 °F

    Wintry Mix
    and Breezy

  • Saturday Night

    Saturday Night: Rain, mixing with snow after 9pm, then gradually ending.  Low around 25. South wind 14 to 18 mph becoming west after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 25 °F

    Rain/Snow
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 30. Northwest wind 11 to 18 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly before midnight.  Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 38. Light and variable wind becoming northwest around 6 mph.
Tonight
Snow, mainly after 4am. Low around 30. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday
Snow, possibly mixed with sleet before noon, then rain, possibly mixed with snow and sleet between noon and 3pm, then rain after 3pm. The snow could be heavy at times. High near 38. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.
Saturday Night
Rain, mixing with snow after 9pm, then gradually ending. Low around 25. South wind 14 to 18 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 30. Northwest wind 11 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly cloudy, with a high near 28.
Monday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Jacob IL
 38.72°N 89.77°W (Elev. 499 ft)
4:51 am CST Nov 28, 2025
5am CST Nov 28, 2025-6pm CST Dec 4, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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