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

34°F

1°C

Humidity 85%
Wind Speed S 13 mph
Barometer 29.67 in (1005.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 13 Jan 2:53 am CST
Extended Forecast for

Winnebago WI

  • Overnight

    Overnight: A slight chance of drizzle or freezing rain before 5am, then a chance of sprinkles and flurries. Cloudy, with a steady temperature around 35. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Wintry Mix

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 40. South southwest wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 40 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers, mainly between midnight and 3am. Mostly cloudy, with a low around 17. Blustery, with a north northwest wind 15 to 24 mph, with gusts as high as 29 mph.

    Low: 17 °F

    Mostly Cloudy
    then Chance
    Snow Showers
    and Blustery

  • Wednesday

    Wednesday: A slight chance of snow before noon, then a chance of flurries between noon and 3pm. Mostly sunny, with a high near 21. Blustery, with a north northwest wind 18 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 21 °F

    Blustery.
    Slight Chance
    Snow then
    Chance
    Flurries

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. North northwest wind 11 to 20 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 23.

    High: 23 °F

    Sunny then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 19. Chance of precipitation is 80%.

    Low: 19 °F

    Snow

  • Friday

    Friday: Snow. High near 30. Chance of precipitation is 80%.

    High: 30 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.

    Low: 13 °F

    Snow Likely

Detailed Forecast

Overnight
A slight chance of drizzle or freezing rain before 5am, then a chance of sprinkles and flurries. Cloudy, with a steady temperature around 35. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 40. South southwest wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
A 30 percent chance of snow showers, mainly between midnight and 3am. Mostly cloudy, with a low around 17. Blustery, with a north northwest wind 15 to 24 mph, with gusts as high as 29 mph.
Wednesday
A slight chance of snow before noon, then a chance of flurries between noon and 3pm. Mostly sunny, with a high near 21. Blustery, with a north northwest wind 18 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 8. North northwest wind 11 to 20 mph.
Thursday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 23.
Thursday Night
Snow. Low around 19. Chance of precipitation is 80%.
Friday
Snow. High near 30. Chance of precipitation is 80%.
Friday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 17.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 4.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 14.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 1.
M.L.King Day
Partly sunny, with a high near 12.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.5°W (Elev. 748 ft)
Last Update:
3:11 am CST Jan 13, 2026
Forecast Valid:
3am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation