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

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

90°F

32°C

Humidity 56%
Wind Speed S 12 mph
Barometer 29.95 in (1012.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 8 Aug 2:53 pm CDT
Extended Forecast for

5 Miles S Eureka WI

Heat Advisory until August 8, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 8, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 73. South wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 4pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 88. Heat index values as high as 95. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Some of the storms could produce heavy rainfall. Low around 69. South wind 7 to 9 mph. Chance of precipitation is 80%.

    Low: 69 °F

    Heavy Rain
    then Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. South southwest wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 90. Heat index values as high as 96. South wind around 14 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 73. South wind 9 to 11 mph, with gusts as high as 18 mph.
Saturday
Showers and thunderstorms likely, mainly after 4pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 88. Heat index values as high as 95. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Some of the storms could produce heavy rainfall. Low around 69. South wind 7 to 9 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. South southwest wind 8 to 10 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 64.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 83.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 63.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 82.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Eureka WI
 43.92°N 88.84°W (Elev. 850 ft)
Last Update:
2:51 pm CDT Aug 8, 2025
Forecast Valid:
3pm CDT Aug 8, 2025-6pm CDT Aug 15, 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