Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 4 Sep 6:55 am CDT
Extended Forecast for

Shelbyville IL

Extreme Heat Warning September 4, 07:09am until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 07:09am until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Today

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light south southwest wind.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind becoming north northwest 5 to 8 mph in the morning.  Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Northeast wind around 6 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Northeast wind 6 to 9 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. East northeast wind 5 to 9 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 88. East wind 5 to 7 mph.

    High: 88 °F

    Sunny

  • Monday Night

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

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind becoming west southwest 5 to 8 mph in the morning.
Tonight
Mostly clear, with a low around 73. Light south southwest wind.
Saturday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 68. Northeast wind around 6 mph.
Sunday
Sunny, with a high near 87. Northeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 62. East northeast wind 5 to 9 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 88. East wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Shelbyville IL
 39.42°N 88.79°W (Elev. 650 ft)
6:36 am CDT Sep 4, 2026
7am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database