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

Ephraim-Gibraltar Airport (K3D2)

Lat: 45.14°NLon: 87.19°WElev: 773ft.

Fair

43°F

6°C

Humidity 50%
Wind Speed SW 6 mph
Barometer 30.03 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 13 Nov 5:15 pm CST
Extended Forecast for

Sister Bay WI

  • Tonight

    Tonight: Partly cloudy, with a low around 38. West southwest wind 5 to 10 mph becoming light and variable.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 52. South southeast wind 6 to 11 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a temperature rising to around 50 by 5am. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 47 °F⇑

    Increasing
    Clouds

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 54. Breezy, with a southwest wind 11 to 16 mph becoming northwest 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 54 °F

    Chance Rain
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33. Breezy, with a northwest wind around 24 mph, with gusts as high as 36 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Breezy.

    High: 42 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. Breezy.

    Low: 32 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. West southwest wind 5 to 10 mph becoming light and variable.
Friday
Sunny, with a high near 52. South southeast wind 6 to 11 mph.
Friday Night
Increasing clouds, with a temperature rising to around 50 by 5am. South wind 11 to 15 mph, with gusts as high as 23 mph.
Saturday
A 40 percent chance of rain, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 54. Breezy, with a southwest wind 11 to 16 mph becoming northwest 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Saturday Night
Partly cloudy, with a low around 33. Breezy, with a northwest wind around 24 mph, with gusts as high as 36 mph.
Sunday
Mostly sunny, with a high near 42. Breezy.
Sunday Night
Partly cloudy, with a low around 32. Breezy.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.15°W (Elev. 581 ft)
Last Update:
3:51 pm CST Nov 13, 2025
Forecast Valid:
5pm CST Nov 13, 2025-6pm CST Nov 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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