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.

Thunderstorm

75°F

24°C

Humidity 78%
Wind Speed S 8 mph
Barometer 29.82 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 21 Jun 11:45 am CDT
Extended Forecast for

Sorento IL

Flood Watch June 21, 12:09pm until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 21, 12:09pm until June 22, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • This Afternoon

    High: 79 °F

    Heavy Rain

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 63. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 73. North wind 8 to 10 mph.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. North wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 5pm. Some of the storms could produce heavy rainfall. High near 79. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Tonight
Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 63. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Monday
Mostly cloudy, with a high near 73. North wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 57. North wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sorento IL
 39°N 89.56°W (Elev. 577 ft)
Last Update:
11:41 am CDT Jun 21, 2026
Forecast Valid:
12pm CDT Jun 21, 2026-6pm CDT Jun 27, 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