National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Flooding Possible in the Southwest U.S, Ohio Valley, and Hawaii

Heavy rainfall is expected to continue through Thursday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. Heavy rain and flash flooding is also expected over the southern Appalachians and Ohio Valley. Tropical Depression 15-E, southeast of Hawaii, is expected to bring heavy rain beginning today to the Big Island and Maui. Read More >

Hazardous Weather Conditions

Current conditions at

Fond Du Lac County Airport (KFLD)

Lat: 43.77°NLon: 88.49°WElev: 791ft.

A Few Clouds

60°F

16°C

Humidity 67%
Wind Speed E 12 G 21 mph
Barometer 30.45 in (1031.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 23 Sep 9:53 am CDT
Extended Forecast for

Byron WI

  • Today

    Today: Mostly sunny, with a high near 65. East wind around 10 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. East wind around 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. East wind 5 to 10 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. East wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 65. East wind around 10 mph.
Tonight
Partly cloudy, with a low around 48. East wind around 5 mph.
Thursday
Mostly sunny, with a high near 66. East wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 47. East wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 66. Light southeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Byron WI
 43.69°N 88.47°W (Elev. 928 ft)
Last Update:
10:32 am CDT Sep 23, 2026
Forecast Valid:
10am CDT Sep 23, 2026-6pm CDT Sep 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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