National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

72°F

22°C

Humidity 47%
Wind Speed E 7 mph
Barometer 29.90 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Mar 10:45 am CDT
Extended Forecast for

New Douglas IL

  • Today

    Today: Sunny, with a high near 84. South wind around 8 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 84. Southwest wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 84 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Breezy, with a north wind 13 to 23 mph, with gusts as high as 31 mph.

    Low: 36 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 55. Northeast wind 8 to 10 mph.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. South wind around 8 mph.
Tonight
Mostly clear, with a low around 61. South wind 7 to 9 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 84. Southwest wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A 20 percent chance of showers before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Breezy, with a north wind 13 to 23 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 55. Northeast wind 8 to 10 mph.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 68.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 54.
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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:
9:41 am CDT Mar 21, 2026
Forecast Valid:
11am CDT Mar 21, 2026-6pm CDT Mar 27, 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