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.

Fair

62°F

17°C

Humidity 37%
Wind Speed SW 20 G 31 mph
Barometer 30.24 in (1024.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 18 Oct 1:53 pm CDT
Extended Forecast for

Winnebago WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. South southwest wind 16 to 18 mph, with gusts as high as 31 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 45. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. South southwest wind around 5 mph becoming calm in the morning.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Areas Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 61. South southwest wind 16 to 18 mph, with gusts as high as 31 mph.
Tonight
Clear, with a low around 45. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 62. South southwest wind around 5 mph becoming calm in the morning.
Monday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 44. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 63. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 50.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 67.
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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:
2:06 pm CDT Oct 18, 2026
Forecast Valid:
2pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation