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

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

80°F

27°C

Humidity 80%
Wind Speed SW 3 mph
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 2 Sep 8:15 am CDT
Extended Forecast for

Shelbyville IL

Heat Advisory September 2, 08:25am until September 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 08:25am until September 4, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • Today

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 104. Southwest wind 5 to 8 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South southwest wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Light and variable wind.

    High: 95 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny and hot, with a high near 98. Heat index values as high as 104. Southwest wind 6 to 9 mph, with gusts as high as 16 mph.
Tonight
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 104. Southwest wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 75. South southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 73. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 67.
Labor Day
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shelbyville IL
 39.39°N 88.82°W (Elev. 600 ft)
Last Update:
7:36 am CDT Sep 2, 2026
Forecast Valid:
8am CDT Sep 2, 2026-6pm CDT Sep 8, 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