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

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Overcast

32°F

0°C

Humidity 82%
Wind Speed SW 10 G 20 mph
Barometer 29.82 in (1010.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 8 Mar 1:53 am CDT
Extended Forecast for

Green Lake WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 65. Southwest wind 5 to 15 mph becoming southeast in the afternoon.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. Northeast wind 5 to 10 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of rain after noon. Increasing clouds, with a high near 51. Northeast wind 10 to 15 mph.

    High: 51 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely before midnight, then rain likely, possibly mixed with snow between midnight and 3am, then rain, snow, and freezing rain likely after 3am. Cloudy, with a low around 31. Northeast wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Rain Likely
    then Wintry
    Mix Likely

  • Wednesday

    Wednesday: Snow likely, possibly mixed with rain and freezing rain before noon, then a chance of snow. Mostly cloudy, with a high near 37. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 37 °F

    Breezy.
    Wintry Mix
    Likely then
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight. Mostly clear, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow then
    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 59. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 65. Southwest wind 5 to 15 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 36. Northeast wind 5 to 10 mph.
Tuesday
A 40 percent chance of rain after noon. Increasing clouds, with a high near 51. Northeast wind 10 to 15 mph.
Tuesday Night
Rain likely before midnight, then rain likely, possibly mixed with snow between midnight and 3am, then rain, snow, and freezing rain likely after 3am. Cloudy, with a low around 31. Northeast wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Snow likely, possibly mixed with rain and freezing rain before noon, then a chance of snow. Mostly cloudy, with a high near 37. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly clear, with a low around 20.
Thursday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 40.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Breezy. Chance of precipitation is 60%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 44. Breezy. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 21.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WI
 43.83°N 88.94°W (Elev. 869 ft)
Last Update:
12:22 am CST Mar 8, 2026
Forecast Valid:
12am CST Mar 8, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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