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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Mostly Cloudy

86°F

30°C

Humidity 75%
Wind Speed S 13 G 21 mph
Barometer 29.86 in (1009.6 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 29 Jun 11:53 am CDT
Extended Forecast for

Ripon WI

Extreme Heat Warning until June 30, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until June 30, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • This Afternoon

    High: 92 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am. Partly cloudy, with a low around 76. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Partly cloudy, with a low around 74. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. Southwest wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny and hot, with a high near 90. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 92. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A slight chance of showers between 3am and 4am. Partly cloudy, with a low around 76. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Partly cloudy, with a low around 74. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. Southwest wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny and hot, with a high near 90. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Ripon WI
 43.83°N 88.85°W (Elev. 1001 ft)
Last Update:
12:16 pm CDT Jun 29, 2026
Forecast Valid:
12pm CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
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