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.

Mostly Cloudy

83°F

28°C

Humidity 84%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 1 Sep 7:55 pm CDT
Extended Forecast for

3 Miles NE Oconee IL

Heat Advisory September 1, 08:17pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 08:17pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 5 to 8 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 77. South southwest wind 3 to 5 mph.

    Low: 77 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 3 to 8 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. Light south southwest wind.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. West southwest wind 3 to 6 mph.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 1pm. Sunny and hot, with a high near 97.

    High: 97 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 76. South southwest wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 5 to 8 mph.
Wednesday Night
Clear, with a low around 77. South southwest wind 3 to 5 mph.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 76. Light south southwest wind.
Friday
Sunny and hot, with a high near 98. West southwest wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 73. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Sunny and hot, with a high near 97.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 68.
Labor Day
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Oconee IL
 39.31°N 89.06°W (Elev. 636 ft)
Last Update:
7:36 pm CDT Sep 1, 2026
Forecast Valid:
8pm CDT Sep 1, 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