Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Partly Cloudy

25°F

-4°C

Humidity 69%
Wind Speed N 5 mph
Barometer 30.11 in (1021.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 14 Mar 3:53 am CDT
Extended Forecast for

Green Lake WI

Winter Storm Watch March 15, 04:00pm until March 16, 07:00pm
Winter Weather Advisory March 14, 07:00pm until March 15, 10:00am
Click here for hazard details and duration
Winter Storm Watch
Winter Weather Advisory
  • Today

    Today: A 30 percent chance of snow after 4pm.  Cloudy, with a high near 38. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tonight

    Tonight: Snow and sleet before 3am, then snow, freezing rain, and sleet between 3am and 4am, then rain, snow, freezing rain, and sleet after 4am.  Patchy blowing snow between 1am and 2am. Low around 28. Breezy, with an east wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph.  Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow then
    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday

    Sunday: Rain or freezing rain before 1pm, then rain, snow, freezing rain, and sleet.  High near 35. Windy, with an east wind 20 to 25 mph becoming northeast in the afternoon. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of less than one inch possible.

    High: 35 °F

    Wintry Mix
    and Windy

  • Sunday Night

    Sunday Night: Snow and sleet, possibly mixed with freezing rain, becoming all snow after 10pm. The snow could be heavy at times.  Widespread blowing snow after 10pm. Low around 16. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of 4 to 7 inches possible.

    Low: 16 °F

    Wintry Mix
    and Blowing
    Snow then
    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: Snow likely, mainly before 1pm.  Widespread blowing snow, mainly before 10am. Cloudy, with a high near 20. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 20 °F

    Snow Likely
    and Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 2 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. West wind 5 to 10 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am.  Mostly cloudy, with a low around 12. South wind 5 to 10 mph.  Chance of precipitation is 60%.

    Low: 12 °F

    Snow Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow before 1pm.  Mostly cloudy, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow

Detailed Forecast

Today
A 30 percent chance of snow after 4pm. Cloudy, with a high near 38. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Tonight
Snow and sleet before 3am, then snow, freezing rain, and sleet between 3am and 4am, then rain, snow, freezing rain, and sleet after 4am. Patchy blowing snow between 1am and 2am. Low around 28. Breezy, with an east wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 1 to 2 inches possible.
Sunday
Rain or freezing rain before 1pm, then rain, snow, freezing rain, and sleet. High near 35. Windy, with an east wind 20 to 25 mph becoming northeast in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than one inch possible.
Sunday Night
Snow and sleet, possibly mixed with freezing rain, becoming all snow after 10pm. The snow could be heavy at times. Widespread blowing snow after 10pm. Low around 16. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 4 to 7 inches possible.
Monday
Snow likely, mainly before 1pm. Widespread blowing snow, mainly before 10am. Cloudy, with a high near 20. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday
Mostly sunny, with a high near 22. West wind 5 to 10 mph.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 12. South wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WI
 43.86°N 88.93°W (Elev. 846 ft)
3:33 am CDT Mar 14, 2026
4am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
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