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

88°F

31°C

Humidity 66%
Wind Speed SE 5 mph
Barometer 30.03 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Aug 6:15 pm CDT
Extended Forecast for

5 Miles SE Saint Elmo IL

Heat Advisory August 17, 06:26pm until August 17, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 17, 06:26pm until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 103. East wind around 5 mph becoming light and variable in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 100. Light and variable wind.

    High: 90 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. North wind 3 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. North northeast wind around 6 mph.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 8pm and 10pm. Partly cloudy, with a low around 72. Light and variable wind becoming west around 6 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 103. East wind around 5 mph becoming light and variable in the afternoon.
Monday Night
Mostly clear, with a low around 72. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 100. Light and variable wind.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 85. North wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 65. North northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Saint Elmo IL
 38.97°N 88.79°W (Elev. 607 ft)
Last Update:
6:10 pm CDT Aug 17, 2025
Forecast Valid:
6pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
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