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

Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

86°F

30°C

Humidity 61%
Wind Speed Vrbl 7 G 21 mph
Barometer 29.98 in (1013.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 23 Jun 10:53 am CDT
Extended Forecast for

5 Miles NNE Van Dyne WI

Heat Advisory June 23, 11:44am until June 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 11:44am until June 23, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Today

    High: 91 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 1am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 72. West northwest wind 5 to 15 mph becoming south southwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 72 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Patchy fog before 10am. Otherwise, mostly cloudy, with a temperature falling to around 70 by 4pm. Light and variable wind becoming east northeast 5 to 9 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F⇓

    Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. East wind 7 to 9 mph. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 72. East wind around 9 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    T-storms
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Mostly sunny and hot, with a high near 91. Southwest wind around 17 mph, with gusts as high as 26 mph.
Tonight
Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 1am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 72. West northwest wind 5 to 15 mph becoming south southwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A 50 percent chance of showers and thunderstorms. Patchy fog before 10am. Otherwise, mostly cloudy, with a temperature falling to around 70 by 4pm. Light and variable wind becoming east northeast 5 to 9 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. East wind 7 to 9 mph. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 72. East wind around 9 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Van Dyne WI
 43.93°N 88.48°W (Elev. 748 ft)
Last Update:
9:37 am CDT Jun 23, 2025
Forecast Valid:
11am CDT Jun 23, 2025-6pm CDT Jun 29, 2025
 
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