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.

Heavy Rain

51°F

11°C

Humidity 97%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 51°F (11°C)
Visibility 2.00 mi
Last update 5 Mar 12:35 am CST
Extended Forecast for

New Douglas IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Areas of fog. Low around 51. Southeast wind around 6 mph becoming west. Chance of precipitation is 100%.

    Low: 51 °F

    Showers and
    Areas Fog

  • Thursday

    Thursday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before 1pm. Otherwise, cloudy, with a high near 65. West wind 5 to 10 mph becoming light in the afternoon. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely and
    Patchy Fog
    then Patchy
    Fog

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 54. Light and variable wind becoming southeast 5 to 9 mph in the evening.

    Low: 54 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 76. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 76 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: A chance of rain before 9pm, then a chance of rain and thunderstorms between 9pm and midnight, then rain and possibly a thunderstorm after midnight. Low around 58. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Chance Rain
    then Rain

  • Saturday

    Saturday: A 50 percent chance of rain before noon. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Areas of fog. Low around 51. Southeast wind around 6 mph becoming west. Chance of precipitation is 100%.
Thursday
Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before 1pm. Otherwise, cloudy, with a high near 65. West wind 5 to 10 mph becoming light in the afternoon. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 54. Light and variable wind becoming southeast 5 to 9 mph in the evening.
Friday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 76. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
A chance of rain before 9pm, then a chance of rain and thunderstorms between 9pm and midnight, then rain and possibly a thunderstorm after midnight. Low around 58. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Saturday
A 50 percent chance of rain before noon. Mostly cloudy, with a high near 67.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly clear, with a low around 57.
Tuesday
Rain and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Wednesday
Rain likely. Cloudy, with a high near 60. Breezy. Chance of precipitation is 70%.
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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:
12:26 am CST Mar 5, 2026
Forecast Valid:
12am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation