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.

Overcast and Windy

36°F

2°C

Humidity 57%
Wind Speed W 31 G 48 mph
Barometer 29.66 in (1005.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 13 Mar 3:53 pm CDT
Extended Forecast for

3 Miles ESE Winnebago WI

Wind Advisory March 13, 04:46pm until March 13, 06:00pm
Winter Storm Warning March 14, 07:00pm until March 16, 04:00pm
Click here for hazard details and duration
...
Winter Storm Warning
  •  
    Wind Advisory March 13, 04:46pm until March 13, 06:00pm

    NOW until 6:00pm Fri

    Wind Advisory

  • Tonight

    Low: 20 °F

    Decreasing
    Clouds and
    Blustery then
    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of snow after 5pm. Mostly cloudy, with a high near 34. Light and variable wind becoming east southeast around 6 mph in the afternoon.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow before 1am, then snow, possibly mixed with sleet between 1am and 4am, then snow, possibly mixed with freezing rain and sleet after 4am. Patchy blowing snow after 2am. Low around 25. East wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 3 to 5 inches possible.

    Low: 25 °F

    Snow then
    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday

    Sunday: Rain, snow, and freezing rain before 1pm, then rain, possibly mixed with snow and sleet between 1pm and 4pm, then rain, snow, freezing rain, and sleet after 4pm. High near 34. Breezy, with a northeast wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.

    High: 34 °F

    Wintry Mix
    and Breezy

  • Sunday Night

    Sunday Night: Snow, possibly mixed with freezing rain and sleet, becoming all snow after 10pm. The snow could be heavy at times. Widespread blowing snow, mainly after 10pm. Low around 14. Windy, with a north wind 26 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.

    Low: 14 °F

    Wintry Mix
    and Blowing
    Snow then
    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. High near 19. Windy. Chance of precipitation is 80%.

    High: 19 °F

    Snow and
    Blowing Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 7pm. Partly cloudy, with a low around 1. Windy.

    Low: 1 °F

    Patchy
    Blowing Snow
    and Windy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a northwest wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 38 mph.
Saturday
A 10 percent chance of snow after 5pm. Mostly cloudy, with a high near 34. Light and variable wind becoming east southeast around 6 mph in the afternoon.
Saturday Night
Snow before 1am, then snow, possibly mixed with sleet between 1am and 4am, then snow, possibly mixed with freezing rain and sleet after 4am. Patchy blowing snow after 2am. Low around 25. East wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 3 to 5 inches possible.
Sunday
Rain, snow, and freezing rain before 1pm, then rain, possibly mixed with snow and sleet between 1pm and 4pm, then rain, snow, freezing rain, and sleet after 4pm. High near 34. Breezy, with a northeast wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.
Sunday Night
Snow, possibly mixed with freezing rain and sleet, becoming all snow after 10pm. The snow could be heavy at times. Widespread blowing snow, mainly after 10pm. Low around 14. Windy, with a north wind 26 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.
Monday
Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. High near 19. Windy. Chance of precipitation is 80%.
Monday Night
Patchy blowing snow before 7pm. Partly cloudy, with a low around 1. Windy.
Tuesday
Mostly sunny, with a high near 19.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 9.
Wednesday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 35.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Winnebago WI
 44.03°N 88.44°W (Elev. 748 ft)
Last Update:
3:02 pm CDT Mar 13, 2026
Forecast Valid:
4pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation