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.

Fair

32°F

0°C

Humidity 60%
Wind Speed S 9 mph
Barometer 29.90 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 5 Dec 4:50 pm CST
Extended Forecast for

New Douglas IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. South wind 6 to 9 mph becoming west after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow between 11pm and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 27. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 27 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain before noon, then a slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly cloudy, with a high near 37. South wind 6 to 11 mph becoming north in the afternoon. Chance of precipitation is 30%.

    High: 37 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15. North wind 5 to 10 mph.

    Low: 15 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. South wind 6 to 9 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 36. Light and variable wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A chance of snow between 11pm and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 27. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday
A chance of rain before noon, then a slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly cloudy, with a high near 37. South wind 6 to 11 mph becoming north in the afternoon. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Douglas IL
 38.98°N 89.67°W (Elev. 620 ft)
Last Update:
4:46 pm CST Dec 5, 2025
Forecast Valid:
5pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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