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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

80°F

27°C

Humidity 62%
Wind Speed S 15 G 28 mph
Barometer 29.87 in (1011.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 May 10:54 am CDT
Extended Forecast for

3 Miles NE Dow IL

  • Today

    Today: Mostly cloudy early, then gradual clearing, with a high near 87. Breezy, with a south wind 17 to 21 mph, with gusts as high as 29 mph.

    High: 87 °F

    Becoming
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South wind 15 to 17 mph, with gusts as high as 28 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am, then showers likely and possibly a thunderstorm after 11am. Increasing clouds, with a high near 85. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. South wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 83. South wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy early, then gradual clearing, with a high near 87. Breezy, with a south wind 17 to 21 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 72. South wind 15 to 17 mph, with gusts as high as 28 mph.
Monday
A slight chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am, then showers likely and possibly a thunderstorm after 11am. Increasing clouds, with a high near 85. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Monday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. South wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Tuesday
Showers and possibly a thunderstorm. High near 83. South wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56.
Saturday
A 20 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:
3 Miles NE Dow IL
 39.06°N 90.27°W (Elev. 650 ft)
Last Update:
8:46 am CDT May 17, 2026
Forecast Valid:
11am CDT May 17, 2026-6pm CDT May 23, 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