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.

Partly Cloudy

78°F

26°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 30.03 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 19 Aug 2:15 am CDT
Extended Forecast for

Dieterich IL

Heat Advisory August 19, 12:00pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 74. Light south wind.

    Low: 74 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 105. Light and variable wind becoming west southwest around 6 mph in the morning.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. North northeast wind 3 to 6 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84. North northeast wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. North northeast wind 6 to 8 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. North northeast wind 6 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. North northeast wind 3 to 6 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 74. Light south wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 105. Light and variable wind becoming west southwest around 6 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. North northeast wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 84. North northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Partly cloudy, with a low around 64. North northeast wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 83. North northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 63. North northeast wind 3 to 6 mph.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dieterich IL
 39.05°N 88.39°W (Elev. 568 ft)
Last Update:
2:24 am CDT Aug 19, 2025
Forecast Valid:
2am CDT Aug 19, 2025-6pm CDT Aug 25, 2025
 
Forecast Discussion
 
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Additional Resources

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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