![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
News Headlines
Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.![](newimages/large/sct.png)
Fair
78°F
26°C
Humidity | 79% |
Wind Speed | E 6 mph |
Barometer | 30.04 in (1016.7 mb) |
Dewpoint | 71°F (22°C) |
Visibility | 9.00 mi |
Heat Index | 80°F (27°C) |
Last update | 26 Jul 7:54 pm CDT |
Extended Forecast for
Grafton IL
Flood Warning July 26, 08:02pm until July 28, 01:00pm
NOW until 1:00pm Sun
Flood Warning
Tonight
Low: 67 °F
Partly Cloudy
Saturday
High: 85 °F
Partly Sunny
then Chance
T-stormsSaturday Night
Low: 71 °F
Chance
T-stormsSunday
High: 87 °F
Chance
T-storms then
Showers
LikelySunday Night
Low: 73 °F
Slight Chance
T-stormsMonday
High: 90 °F
Chance
T-stormsMonday Night
Low: 75 °F
Chance
T-stormsTuesday
High: 94 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Partly cloudy, with a low around 67. East wind around 6 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 85. Light east wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 71. Southeast wind around 7 mph.
Sunday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. South wind 6 to 9 mph. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind around 7 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Additional Forecasts and Information
Click Map For Forecast
ABOUT THIS FORECAST
Point Forecast:
Grafton IL
38.98°N 90.42°W (Elev. 673 ft)
38.98°N 90.42°W (Elev. 673 ft)
5:22 pm CDT Jul 26, 2024
8pm CDT Jul 26, 2024-6pm CDT Aug 2, 2024