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.

Mostly Cloudy

63°F

17°C

Humidity 90%
Wind Speed S 5 mph
Barometer 29.92 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Apr 4:55 am CDT
Extended Forecast for

New Douglas IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 47. South wind 13 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 47 °F

    T-storms
    Likely then
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms. Cloudy through mid morning, then gradual clearing, with a steady temperature around 51. Northwest wind 16 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Northwest wind 5 to 14 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. West wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 47. South wind 13 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
A chance of showers and thunderstorms. Cloudy through mid morning, then gradual clearing, with a steady temperature around 51. Northwest wind 16 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 36. Northwest wind 5 to 14 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 63. West wind 5 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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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:
2:36 am CDT Apr 17, 2026
Forecast Valid:
5am CDT Apr 17, 2026-6pm CDT Apr 23, 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