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

74°F

23°C

Humidity 99%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 18 Aug 1:55 am CDT
Extended Forecast for

3 Miles WSW Effingham IL

Heat Advisory August 18, 02:20am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 02:20am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 103. South southeast wind 3 to 5 mph.

    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. Calm wind becoming west southwest around 5 mph.

    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 40%.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. North wind 3 to 7 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 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. Light east wind.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 103. South southeast wind 3 to 5 mph.
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. Calm wind becoming west southwest around 5 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 85. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 65. North northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Effingham IL
 39.1°N 88.58°W (Elev. 512 ft)
Last Update:
1:40 am CDT Aug 18, 2025
Forecast Valid:
2am CDT Aug 18, 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