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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane today as it moves north toward the Big Island of Hawaii. Heavy rainfall may produce life-threatening, catastrophic flooding and mudslides. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

66°F

19°C

Humidity 73%
Wind Speed SE 3 mph
Barometer 30.27 in (1024.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 24 Sep 12:54 pm CDT
Extended Forecast for

Elsah IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 71. Northeast wind around 6 mph.

    High: 71 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 76. Calm wind becoming east around 6 mph in the morning.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. Northeast wind 3 to 6 mph.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. East wind 3 to 5 mph.

    High: 72 °F

    Chance
    Showers

  • Saturday Night

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

    Low: 60 °F

    Cloudy then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.

    High: 74 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 71. Northeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 76. Calm wind becoming east around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 60. Northeast wind 3 to 6 mph.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. East wind 3 to 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elsah IL
 38.95°N 90.33°W (Elev. 554 ft)
Last Update:
1:21 pm CDT Sep 24, 2026
Forecast Valid:
1pm CDT Sep 24, 2026-6pm CDT Sep 30, 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