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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

73°F

23°C

Humidity 62%
Wind Speed E 7 mph
Barometer 30.24 in (1023.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Sep 12:54 pm CDT
Extended Forecast for

3 Miles SW Hardin IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. Northeast wind 3 to 5 mph.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. East wind 3 to 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 9am and 4pm. Mostly cloudy, with a high near 69. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 59. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73. Light east wind.

    High: 73 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. Northeast wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 59. East wind 3 to 5 mph.
Saturday
A slight chance of showers between 9am and 4pm. Mostly cloudy, with a high near 69. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 59. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73. Light east wind.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 78.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 65.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Hardin IL
 39.12°N 90.67°W (Elev. 525 ft)
Last Update:
1:25 pm CDT Sep 25, 2026
Forecast Valid:
1pm CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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