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

30°F

-1°C

Humidity 66%
Wind Speed S 9 mph
Barometer 30.39 in (1031.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 2 Mar 9:53 am CST
Extended Forecast for

Winnebago WI

  • Today

    Today: Sunny, with a high near 42. South southwest wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. South wind around 6 mph becoming calm after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow before 11am, then a chance of rain between 11am and noon. Mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 45. Calm wind becoming east around 6 mph in the morning.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

  • Friday

    Friday: Rain, mainly after noon. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Chance Rain
    then Rain

Detailed Forecast

Today
Sunny, with a high near 42. South southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Tonight
Mostly cloudy, with a low around 28. South wind around 6 mph becoming calm after midnight.
Tuesday
A chance of snow before 11am, then a chance of rain between 11am and noon. Mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 28. Calm wind.
Wednesday
A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 45. Calm wind becoming east around 6 mph in the morning.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
Rain, mainly after noon. High near 54. Chance of precipitation is 80%.
Friday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 52.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.08°N 88.53°W (Elev. 787 ft)
Last Update:
8:25 am CST Mar 2, 2026
Forecast Valid:
10am CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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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