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

54°F

12°C

Humidity 73%
Wind Speed NE 5 mph
Barometer 30.18 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 9 Oct 9:15 am CDT
Extended Forecast for

Sister Bay WI

  • Today

    Today: Sunny, with a high near 62. Light and variable wind becoming east southeast 5 to 8 mph in the afternoon.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. East southeast wind 8 to 10 mph.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. South wind 11 to 21 mph, with gusts as high as 29 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. South wind 13 to 17 mph, with gusts as high as 30 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 67. South wind around 11 mph, with gusts as high as 18 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 62. Light and variable wind becoming east southeast 5 to 8 mph in the afternoon.
Tonight
Partly cloudy, with a low around 54. East southeast wind 8 to 10 mph.
Saturday
Sunny, with a high near 69. South wind 11 to 21 mph, with gusts as high as 29 mph.
Saturday Night
Partly cloudy, with a low around 57. South wind 13 to 17 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 67. South wind around 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 54.
Columbus Day
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 47.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
Last Update:
9:12 am CDT Oct 9, 2026
Forecast Valid:
9am CDT Oct 9, 2026-6pm CDT Oct 15, 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