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

Fond Du Lac County Airport (KFLD)

Lat: 43.77°NLon: 88.49°WElev: 791ft.

A Few Clouds

88°F

31°C

Humidity 61%
Wind Speed S 8 mph
Barometer 29.86 in (1010.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 26 Jul 3:53 pm CDT
Extended Forecast for

2 Miles SSE Byron WI

Heat Advisory July 26, 03:59pm until July 26, 09:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory July 26, 03:59pm until July 26, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Tonight

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 4pm.  Partly sunny, with a high near 86. Heat index values as high as 95. Southwest wind 10 to 15 mph.

    High: 86 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, with a low around 62. North wind around 10 mph.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny through mid morning, then becoming sunny, with a high near 80. North wind around 10 mph.

    High: 80 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming northeast around 5 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Southeast wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the morning.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 71. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Heat index values as high as 95. Southwest wind 10 to 15 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 62. North wind around 10 mph.
Tuesday
Partly sunny through mid morning, then becoming sunny, with a high near 80. North wind around 10 mph.
Tuesday Night
Clear, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 83. Calm wind becoming northeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 60. Southeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Byron WI
 43.65°N 88.44°W (Elev. 1093 ft)
3:32 pm CDT Jul 26, 2026
3pm 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