



A Large and Slow-Moving Storm System Producing Thunderstorms and Heavy Rain
A slow-moving and large storm system will produce widespread strong to severe thunderstorms and heavy rainfall with possible flooding from the Midwest and Ohio Valley to the Southern U.S. into late week. Record-breaking heat is possible in central California. Read More >
Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
71°F
22°C
Humidity | 68% |
Wind Speed | SE 13 mph |
Barometer | 29.90 in (1012.0 mb) |
Dewpoint | 60°F (16°C) |
Visibility | 10.00 mi |
Last update | 24 May 10:54 pm CDT |
Extended Forecast for
Grafton IL
-
Tonight
Showers
Low: 66 °F
-
Wednesday
T-storms
High: 79 °F
-
Wednesday
NightT-storms
Low: 63 °F
-
Thursday
Showers
Likely then
ShowersHigh: 72 °F
-
Thursday
NightShowers
LikelyLow: 58 °F
-
Friday
Chance
ShowersHigh: 69 °F
-
Friday
NightPartly Cloudy
Low: 55 °F
-
Saturday
Mostly Sunny
High: 77 °F
-
Saturday
NightMostly Clear
Low: 62 °F
Detailed Forecast
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 66. Southeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms. High near 79. Southeast wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Wednesday Night
Showers and thunderstorms, mainly before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 63. South wind 8 to 13 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 72. South wind 8 to 10 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. West wind 6 to 8 mph. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 70.
Memorial Day
Mostly sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny, with a high near 89.
Additional Forecasts and Information
Click Map For Forecast
Point Forecast:
Grafton IL
38.98°N 90.42°W (Elev. 673 ft)
38.98°N 90.42°W (Elev. 673 ft)
10:12 pm CDT May 24, 2022
11pm CDT May 24, 2022-6pm CDT May 31, 2022