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.

Fog/Mist

31°F

-1°C

Humidity 96%
Wind Speed N 16 mph
Barometer 29.69 in (1006.6 mb)
Dewpoint 30°F (-1°C)
Visibility 3.00 mi
Wind Chill20°F (-7°C)
Last update 11 Mar 4:53 am CDT
Extended Forecast for

2 Miles SSE Green Lake WI

Winter Weather Advisory until March 11, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 11, 01:00pm

    NOW until 1:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 30 °F

    Areas
    Freezing Rain

  • Wednesday

    Wednesday: Areas of freezing rain before 9am, then areas of snow and freezing rain between 9am and 11am, then snow after 11am. High near 36. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than one inch possible.

    High: 36 °F

    Wintry Mix
    then Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. West wind 10 to 15 mph.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 43. West wind 10 to 15 mph.

    High: 43 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then rain and snow after 4am. Low around 31. Very windy, with a south wind 15 to 25 mph becoming southwest 25 to 35 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow and
    Very Windy

  • Friday

    Friday: Snow, possibly mixing with rain after 10am, then gradually ending. High near 40. Very windy, with a northwest wind 30 to 35 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Very Windy.
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 21 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 38. North wind 5 to 10 mph becoming southeast in the afternoon.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Areas of freezing rain. Cloudy, with a low around 30. North wind around 15 mph. Chance of precipitation is 30%.
Wednesday
Areas of freezing rain before 9am, then areas of snow and freezing rain between 9am and 11am, then snow after 11am. High near 36. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly clear, with a low around 24. West wind 10 to 15 mph.
Thursday
Increasing clouds, with a high near 43. West wind 10 to 15 mph.
Thursday Night
Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then rain and snow after 4am. Low around 31. Very windy, with a south wind 15 to 25 mph becoming southwest 25 to 35 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Snow, possibly mixing with rain after 10am, then gradually ending. High near 40. Very windy, with a northwest wind 30 to 35 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 21. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 38. North wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Snow likely before 1am, then rain and snow. Low around 27. Breezy. Chance of precipitation is 80%.
Sunday
Rain and snow. High near 35. Breezy. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 12. Windy.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 25. Windy.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Green Lake WI
 43.81°N 88.94°W (Elev. 850 ft)
Last Update:
5:06 am CDT Mar 11, 2026
Forecast Valid:
5am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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