Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Mostly Cloudy

51°F

11°C

Humidity 61%
Wind Speed S 8 mph
Barometer 29.85 in (1010.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 15 May 5:53 am CDT
Extended Forecast for

Winnebago WI

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 69. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am.  Increasing clouds, with a low around 57. South wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 73. West wind 8 to 14 mph, with gusts as high as 18 mph.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 54. Light and variable wind becoming east northeast 6 to 11 mph after midnight.  Chance of precipitation is 20%.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 68. East southeast wind 15 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 10pm.  Partly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 74. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 71. Breezy.

    High: 71 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 69. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Increasing clouds, with a low around 57. South wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 73. West wind 8 to 14 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Light and variable wind becoming east northeast 6 to 11 mph after midnight. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 68. East southeast wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. Breezy.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.5°W (Elev. 748 ft)
5:47 am CDT May 15, 2026
6am CDT May 15, 2026-6pm CDT May 21, 2026
 
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