National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

81°F

27°C

Humidity 54%
Wind Speed N 7 mph
Barometer 30.00 in (1015.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jun 11:54 am CDT
Extended Forecast for

2 Miles NNE Kane IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. North wind 3 to 5 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 65 °F

    Partly Cloudy
    then Isolated
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 79. Southeast wind 8 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 79 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 1am. Some of the storms could produce heavy rainfall. Low around 61. North wind 8 to 11 mph becoming southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Heavy Rain
    then
    Scattered
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North wind around 10 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. North wind 3 to 5 mph.
Tonight
Isolated showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 79. Southeast wind 8 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Some of the storms could produce heavy rainfall. Low around 61. North wind 8 to 11 mph becoming southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North wind around 10 mph.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Kane IL
 39.22°N 90.32°W (Elev. 476 ft)
Last Update:
11:26 am CDT Jun 20, 2026
Forecast Valid:
12pm CDT Jun 20, 2026-6pm CDT Jun 26, 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