Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Current conditions at

Monroe Municipal Airport (KEFT)

Lat: 42.62°NLon: 89.59°WElev: 1082ft.

Fair

91°F

33°C

Humidity 56%
Wind Speed W 3 mph
Barometer 29.86 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 26 Jul 5:35 pm CDT
Extended Forecast for

4 Miles N Lake Summerset IL

Heat Advisory July 26, 05:52pm until July 27, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 05:52pm until July 27, 10:00pm

    NOW until 10:00pm Mon

    Heat Advisory

  • Tonight

    Low: 73 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 89. Heat index values as high as 102. East wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 50%.

    High: 89 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 68. West wind around 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. North wind around 10 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 73. South wind around 5 mph.
Monday
A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 89. Heat index values as high as 102. East wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 68. West wind around 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 83. North wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 66.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 80.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Lake Summerset IL
 42.51°N 89.4°W (Elev. 873 ft)
4:46 pm CDT Jul 26, 2026
5pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
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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