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

73°F

23°C

Humidity 69%
Wind Speed SW 13 mph
Barometer 29.90 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Apr 8:45 am CDT
Extended Forecast for

New Douglas IL

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 80. Southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 80 °F

    Chance
    T-storms then
    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then showers likely after 4am. Low around 62. Southwest wind around 11 mph. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 9 to 14 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 7pm. Mostly clear, with a low around 57. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 65. Breezy. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 38. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 80. Southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then showers likely after 4am. Low around 62. Southwest wind around 11 mph. Chance of precipitation is 90%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 9 to 14 mph. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms before 7pm. Mostly clear, with a low around 57. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 52. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 65. Breezy. Chance of precipitation is 50%.
Saturday Night
A slight chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 38. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 74.
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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:
8:36 am CDT Apr 15, 2026
Forecast Valid:
9am CDT Apr 15, 2026-6pm CDT Apr 21, 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