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

70°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.94 in (1012.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 30 Aug 10:53 pm CDT
Extended Forecast for

2 Miles SE Green Lake WI

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 5 to 10 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming light after midnight.
Tuesday
Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 82.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Green Lake WI
 43.83°N 88.94°W (Elev. 869 ft)
Last Update:
11:27 pm CDT Aug 30, 2026
Forecast Valid:
11pm CDT Aug 30, 2026-6pm CDT Sep 6, 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