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.

Light Snow and Windy

36°F

2°C

Humidity 89%
Wind Speed S 26 G 41 mph
Barometer 29.32 in (993.5 mb)
Dewpoint 33°F (1°C)
Visibility 9.00 mi
Wind Chill24°F (-4°C)
Last update 13 Mar 2:53 am CDT
Extended Forecast for

Winnebago WI

Winter Storm Watch March 14, 07:00pm until March 16, 04:00pm
Wind Advisory March 13, 03:53am until March 13, 06:00pm
Click here for hazard details and duration
Winter Storm Watch
Wind Advisory
  •  
    Wind Advisory March 13, 03:53am until March 13, 06:00pm

    NOW until 6:00pm Fri

    Wind Advisory

  • Overnight

    Low: 35 °F

    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 2pm, then a slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 39. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow and
    Windy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 21. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 21 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 36. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Low around 27. East wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Low: 27 °F

    Heavy Snow

  • Sunday

    Sunday: Snow before 10am, then snow, possibly mixed with rain between 10am and 4pm, then snow, possibly mixed with freezing rain after 4pm. The snow could be heavy at times. Widespread blowing snow, mainly after 2pm. High near 34. Breezy. Chance of precipitation is 100%.

    High: 34 °F

    Wintry Mix
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: Snow, possibly mixed with freezing rain, becoming all snow after 7pm. The snow could be heavy at times. Widespread blowing snow, mainly after 3am. Low around 16. Windy. Chance of precipitation is 100%.

    Low: 16 °F

    Wintry Mix
    and Blowing
    Snow then
    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Widespread blowing snow before 7am. Cloudy, with a high near 22. Windy. Chance of precipitation is 70%.

    High: 22 °F

    Snow Likely
    and Blowing
    Snow

Detailed Forecast

Overnight
Rain, possibly mixed with snow, becoming all rain after 5am. Steady temperature around 35. South southwest wind 18 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Friday
A chance of rain and snow before 2pm, then a slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 39. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 40%.
Friday Night
Increasing clouds, with a low around 21. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 36. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.
Saturday Night
Snow. The snow could be heavy at times. Low around 27. East wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Sunday
Snow before 10am, then snow, possibly mixed with rain between 10am and 4pm, then snow, possibly mixed with freezing rain after 4pm. The snow could be heavy at times. Widespread blowing snow, mainly after 2pm. High near 34. Breezy. Chance of precipitation is 100%.
Sunday Night
Snow, possibly mixed with freezing rain, becoming all snow after 7pm. The snow could be heavy at times. Widespread blowing snow, mainly after 3am. Low around 16. Windy. Chance of precipitation is 100%.
Monday
Snow likely, mainly before 1pm. Widespread blowing snow before 7am. Cloudy, with a high near 22. Windy. Chance of precipitation is 70%.
Monday Night
Partly cloudy, with a low around 2. Blustery.
Tuesday
Mostly sunny, with a high near 21.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.04°N 88.5°W (Elev. 748 ft)
Last Update:
3:17 am CDT Mar 13, 2026
Forecast Valid:
3am CDT Mar 13, 2026-6pm CDT Mar 19, 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