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

Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

56°F

13°C

Humidity 57%
Wind Speed NW 10 mph
Barometer 30.06 in (1017.6 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Oct 9:53 am CDT
Extended Forecast for

Berlin WI

  • Today

    Today: Mostly sunny, with a high near 67. West wind 5 to 10 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 71. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Southeast wind 5 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. South wind around 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. South wind 10 to 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 77. South wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 67. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 43. Calm wind.
Friday
A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 71. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 56. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 82. South wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 59. South wind 10 to 15 mph.
Sunday
Sunny, with a high near 77. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 56. Southwest wind around 5 mph.
Columbus Day
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 74.
Monday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Berlin WI
 43.96°N 88.93°W (Elev. 764 ft)
Last Update:
8:36 am CDT Oct 8, 2026
Forecast Valid:
10am CDT Oct 8, 2026-6pm CDT Oct 14, 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