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

35°F

2°C

Humidity 68%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 17 Nov 12:55 am CST
Extended Forecast for

New Douglas IL

  • Overnight

    Overnight: Mostly clear, with a low around 33. Light north wind.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 57. Light east wind becoming southeast 6 to 11 mph in the morning.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 45. Southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 68. Southeast wind 7 to 10 mph becoming northwest in the afternoon.

    High: 68 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. Northeast wind 3 to 6 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.

    High: 65 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 33. Light north wind.
Monday
Mostly sunny, with a high near 57. Light east wind becoming southeast 6 to 11 mph in the morning.
Monday Night
Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 45. Southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 68. Southeast wind 7 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 45. Northeast wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 47.
Thursday
Rain and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Partly sunny, with a high near 65.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 42.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, 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:
9:26 pm CST Nov 16, 2025
Forecast Valid:
1am CST Nov 17, 2025-6pm CST Nov 23, 2025
 
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