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 87%
Wind Speed SE 6 mph
Barometer 30.10 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Aug 8:15 am CDT
Extended Forecast for

4 Miles NE Dieterich IL

Heat Advisory August 18, 08:26am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 08:26am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 92 °F

    Mostly Sunny

  • Tonight

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

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the morning.

    High: 90 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 72. Light north northwest wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. North northeast wind 5 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. North wind 6 to 8 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. North northeast wind 6 to 8 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 92. Heat index values as high as 101. South southeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 73. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the morning.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 72. Light north northwest wind. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 85. North northeast wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 64. North wind 6 to 8 mph.
Thursday
Sunny, with a high near 84. North northeast wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Dieterich IL
 39.11°N 88.33°W (Elev. 594 ft)
Last Update:
7:55 am CDT Aug 18, 2025
Forecast Valid:
8am 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