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.

Fair

46°F

8°C

Humidity 56%
Wind Speed S 15 mph
Barometer 29.98 in (1015.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 21 Apr 1:53 am CDT
Extended Forecast for

3 Miles ESE Winnebago WI

  • Overnight

    Overnight: Partly cloudy, with a low around 44. South wind around 14 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 61. South southwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. East northeast wind 5 to 9 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Southeast wind 6 to 8 mph.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. Southeast wind around 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.

    High: 62 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. South wind around 14 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 61. South southwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. East northeast wind 5 to 9 mph.
Wednesday
Sunny, with a high near 63. Southeast wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 49. Southeast wind around 10 mph.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Winnebago WI
 44.03°N 88.44°W (Elev. 748 ft)
Last Update:
1:21 am CDT Apr 21, 2026
Forecast Valid:
2am CDT Apr 21, 2026-6pm CDT Apr 27, 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