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

75°F

24°C

Humidity 46%
Wind Speed E 5 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 25 May 7:54 pm CDT
Extended Forecast for

2 Miles W Grafton IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. East wind 3 to 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 80. East wind 3 to 7 mph.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 10pm.  Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 30%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. East wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers.  Mostly cloudy, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. East wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 80. East wind 3 to 7 mph.
Tuesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 83.
Thursday Night
Mostly cloudy, with a low around 63.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 77.
Friday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Grafton IL
 38.98°N 90.47°W (Elev. 689 ft)
5:26 pm CDT May 25, 2026
8pm CDT May 25, 2026-6pm CDT Jun 1, 2026
 
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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