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

Hazardous Weather Conditions

Current conditions at

Ephraim-Gibraltar Airport (K3D2)

Lat: 45.14°NLon: 87.19°WElev: 773ft.

Fair

84°F

29°C

Humidity 46%
Wind Speed S 6 mph
Barometer 30.01 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 4 Oct 11:55 am CDT
Extended Forecast for

Sister Bay WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. South wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Breezy, with a south wind 13 to 22 mph, with gusts as high as 31 mph.

    High: 74 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 57. South wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 57 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 65. West wind 6 to 10 mph becoming north northeast in the afternoon.

    High: 65 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. South wind 9 to 15 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 66. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 74. Breezy, with a south wind 13 to 22 mph, with gusts as high as 31 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 57. South wind 11 to 18 mph, with gusts as high as 29 mph.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. West wind 6 to 10 mph becoming north northeast in the afternoon.
Monday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 61.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 49.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
Last Update:
11:26 am CDT Oct 4, 2025
Forecast Valid:
12pm CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation