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

64°F

18°C

Humidity 80%
Wind Speed W 6 mph
Barometer 29.77 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Oct 7:55 am CDT
Extended Forecast for

Sister Bay WI

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 71. Light and variable wind becoming south around 6 mph in the morning.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a chance of showers. Increasing clouds, with a low around 55. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 20 percent chance of showers between 8am and 9am. Partly sunny, with a high near 64. North northwest wind 7 to 11 mph.

    High: 64 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. North northwest wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. North wind 7 to 9 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers after 1pm. Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 54. Breezy.

    High: 54 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Columbus Day
Partly sunny, with a high near 71. Light and variable wind becoming south around 6 mph in the morning.
Tonight
Showers and thunderstorms likely before 4am, then a chance of showers. Increasing clouds, with a low around 55. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 20 percent chance of showers between 8am and 9am. Partly sunny, with a high near 64. North northwest wind 7 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 48. North northwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 59. North wind 7 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A 50 percent chance of showers after 1pm. Partly sunny, with a high near 59.
Thursday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 42.
Friday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 54. Breezy.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 59.
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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:
5:36 am CDT Oct 12, 2026
Forecast Valid:
8am CDT Oct 12, 2026-6pm CDT Oct 18, 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