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.

Overcast

17°F

-8°C

Humidity 61%
Wind Speed NW 12 mph
Barometer 30.56 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 23 Feb 6:35 am CST
Extended Forecast for

New Douglas IL

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 29. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 29 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 18. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 48. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 48 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. Northwest wind around 6 mph becoming southeast in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely before 3am, then rain likely, possibly mixed with snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before noon. Partly sunny, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 29. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 18. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Increasing clouds, with a high near 48. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 50. Northwest wind around 6 mph becoming southeast in the afternoon.
Wednesday Night
Rain likely before 3am, then rain likely, possibly mixed with snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before noon. Partly sunny, with a high near 46. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 58.
Friday Night
Clear, with a low around 37.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Douglas IL
 38.98°N 89.67°W (Elev. 620 ft)
Last Update:
5:31 am CST Feb 23, 2026
Forecast Valid:
6am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation