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.

Fog/Mist

53°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 29.67 in (1004.4 mb)
Dewpoint 53°F (12°C)
Visibility 3.00 mi
Last update 15 Apr 2:53 am CDT
Extended Forecast for

3 Miles ESE Winnebago WI

  • Overnight

    Overnight: Areas of fog. Otherwise, cloudy, with a steady temperature around 54. Northeast wind around 5 mph.

    Low: 54 °F

    Areas Fog

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Widespread dense fog before 1pm, then patchy dense fog after 4pm. Otherwise, mostly cloudy, with a high near 56. North northeast wind 5 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Chance
    Showers and
    Dense Fog

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Patchy fog before 7pm, then patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 46. East northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then a chance of rain after 1pm. Widespread dense fog, mainly before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 57. North northeast wind around 7 mph. Chance of precipitation is 50%.

    High: 57 °F

    Chance
    Showers and
    Dense Fog

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. South southeast wind around 6 mph.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 1pm. Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 43. Chance of precipitation is 90%.

    Low: 43 °F

    Rain

  • Saturday

    Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 10pm, then a slight chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Areas of fog. Otherwise, cloudy, with a steady temperature around 54. Northeast wind around 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Widespread dense fog before 1pm, then patchy dense fog after 4pm. Otherwise, mostly cloudy, with a high near 56. North northeast wind 5 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Patchy fog before 7pm, then patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 46. East northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 1pm, then a chance of rain after 1pm. Widespread dense fog, mainly before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 57. North northeast wind around 7 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 46. South southeast wind around 6 mph.
Friday
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 65.
Friday Night
Rain and possibly a thunderstorm. Low around 43. Chance of precipitation is 90%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 49.
Saturday Night
A slight chance of rain before 10pm, then a slight chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Sunday
A 20 percent chance of snow before 1pm. Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 61.
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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:
2:41 am CDT Apr 15, 2026
Forecast Valid:
3am CDT Apr 15, 2026-6pm CDT Apr 21, 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