National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

56°F

13°C

Humidity 46%
Wind Speed Calm
Barometer 30.13 in (1020.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 14 May 8:53 am CDT
Extended Forecast for

Berlin WI

  • Today

    Today: Sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Showers likely, mainly between 1am and 5am. Increasing clouds, with a low around 49. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 56. South wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 81. West wind 5 to 10 mph.

    High: 81 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. Calm wind becoming northeast around 5 mph after midnight.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 73. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East wind 10 to 15 mph.

    Low: 55 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 50%.

    High: 84 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Showers likely, mainly between 1am and 5am. Increasing clouds, with a low around 49. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 56. South wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 81. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 50. Calm wind becoming northeast around 5 mph after midnight.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 73. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East wind 10 to 15 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 77.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Berlin WI
 43.96°N 88.93°W (Elev. 764 ft)
Last Update:
9:31 am CDT May 14, 2026
Forecast Valid:
9am CDT May 14, 2026-6pm CDT May 20, 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