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

79°F

26°C

Humidity 99%
Wind Speed SE 5 mph
Barometer 30.04 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 30 Jun 10:35 pm CDT
Extended Forecast for

Shumway IL

Extreme Heat Warning June 30, 10:53pm until July 3, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 10:53pm until July 3, 12:00am

    NOW until 12:00am Fri

    Extreme Heat Warning

  • Tonight

    Low: 73 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 103. South southwest wind 5 to 9 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. South wind 5 to 7 mph, with gusts as high as 15 mph.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 106. South southwest wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Light south wind.

    Low: 72 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 73. South wind 5 to 7 mph, with gusts as high as 16 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 103. South southwest wind 5 to 9 mph.
Wednesday Night
Clear, with a low around 74. South wind 5 to 7 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 94. Heat index values as high as 106. South southwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 92. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Light south wind.
Independence Day
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 70.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shumway IL
 39.19°N 88.66°W (Elev. 650 ft)
Last Update:
3:06 pm CDT Jun 30, 2026
Forecast Valid:
10pm CDT Jun 30, 2026-6pm CDT Jul 7, 2026
 
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