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

45°F

7°C

Humidity 69%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 5 Apr 10:55 pm CDT
Extended Forecast for

Dorsey IL

  • Tonight

    Tonight: Clear, with a low around 39. Southwest wind around 6 mph.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 59. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain showers after 1am, mixing with snow after 4am. Increasing clouds, with a low around 36. North wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51. East wind 9 to 11 mph.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southeast wind around 9 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 39. Southwest wind around 6 mph.
Monday
Sunny, with a high near 59. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of rain showers after 1am, mixing with snow after 4am. Increasing clouds, with a low around 36. North wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 51. East wind 9 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southeast wind around 9 mph.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dorsey IL
 38.97°N 89.99°W (Elev. 551 ft)
Last Update:
9:46 pm CDT Apr 5, 2026
Forecast Valid:
11pm CDT Apr 5, 2026-6pm CDT Apr 12, 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