Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

75°F

24°C

Humidity 100%
Wind Speed E 3 mph
Barometer 29.95 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Last update 29 Jun 2:15 am CDT
Extended Forecast for

4 Miles WSW Effingham IL

Heat Advisory June 29, 11:00am until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Partly cloudy, with a low around 74. South southeast wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 105. South wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 106. South southwest wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72. South wind 3 to 7 mph.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South southwest wind 3 to 7 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. South wind around 5 mph becoming calm  after midnight.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 74. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 105. South wind 5 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 74. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 93. Heat index values as high as 106. South southwest wind 5 to 8 mph, with gusts as high as 15 mph.
Tuesday Night
Clear, with a low around 72. South wind 3 to 7 mph.
Wednesday
Sunny, with a high near 93. South southwest wind 3 to 7 mph.
Wednesday Night
Clear, with a low around 74. South wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 74.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 74.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 72.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Effingham IL
 39.1°N 88.61°W (Elev. 564 ft)
1:26 am CDT Jun 29, 2026
2am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database