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.

Fog/Mist

46°F

8°C

Humidity 95%
Wind Speed E 6 mph
Barometer 29.61 in
Dewpoint 45°F (7°C)
Visibility 0.75 mi
Wind Chill43°F (6°C)
Last update 19 Feb 1:35 am CST
Extended Forecast for

New Douglas IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. Southeast wind around 6 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 64. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 64 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.

    Low: 35 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. North wind 3 to 6 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow after noon, mixing with rain after 3pm. Mostly sunny, with a high near 44. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Breezy.

    High: 36 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. Southeast wind around 6 mph.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 64. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 35. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 28. North wind 3 to 6 mph.
Saturday
A slight chance of snow after noon, mixing with rain after 3pm. Mostly sunny, with a high near 44. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Mostly sunny, with a high near 36. Breezy.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 57.
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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:
1:10 am CST Feb 19, 2026
Forecast Valid:
1am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
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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