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

28°F

-2°C

Humidity 63%
Wind Speed SE 9 mph
Barometer 30.30 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 7 Feb 11:55 pm CST
Extended Forecast for

New Douglas IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Southeast wind 8 to 11 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 41. Southeast wind 9 to 14 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. East wind 3 to 8 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. South wind 6 to 8 mph becoming southwest after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Southeast wind 8 to 11 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 41. Southeast wind 9 to 14 mph.
Sunday Night
Partly cloudy, with a low around 25. East wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 37. South wind 6 to 8 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 44.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 29.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 46.
Friday Night
A chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Mostly sunny, with a high near 45. Chance of precipitation is 40%.
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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:
10:06 pm CST Feb 7, 2026
Forecast Valid:
12am CST Feb 8, 2026-6pm CST Feb 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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