Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

79°F

26°C

Humidity 44%
Wind Speed E 12 mph
Barometer 30.13 in (1018.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 Aug 3:53 pm CDT
Extended Forecast for

Green Lake WI

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 4am.  Mostly cloudy, with a low around 62. East wind around 10 mph.  Chance of precipitation is 40%.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Mostly cloudy, with a high near 79. East wind 5 to 10 mph.

    High: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly between 1am and 3am.  Mostly cloudy, with a low around 67. South wind around 5 mph becoming west after midnight.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm  after midnight.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Southwest wind around 5 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 62. East wind around 10 mph. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, with a high near 79. East wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 1am and 3am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming west after midnight.
Sunday
Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. Southwest wind around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Southwest wind 5 to 10 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 56.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WI
 43.83°N 88.94°W (Elev. 869 ft)
2:46 pm CDT Aug 14, 2026
4pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database