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

46°F

8°C

Humidity 62%
Wind Speed W 3 mph
Barometer 30.32 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 5 Apr 9:50 pm CDT
Extended Forecast for

New Douglas IL

  • Tonight

    Tonight: Clear, with a low around 38. West wind 3 to 6 mph.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 59. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain showers after 1am, mixing with snow after 4am. Increasing clouds, with a low around 35. Northeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50. East wind 8 to 11 mph.

    High: 50 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. East wind 7 to 9 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 38. West wind 3 to 6 mph.
Monday
Sunny, with a high near 59. Northwest wind 8 to 14 mph, with gusts as high as 24 mph.
Monday Night
A slight chance of rain showers after 1am, mixing with snow after 4am. Increasing clouds, with a low around 35. Northeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 50. East wind 8 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 38. East wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 55.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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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:
9:46 pm CDT Apr 5, 2026
Forecast Valid:
10pm CDT Apr 5, 2026-6pm CDT Apr 12, 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