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 63%
Wind Speed SW 5 mph
Barometer 29.95 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 25 May 8:55 pm CDT
Extended Forecast for

Sister Bay WI

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 60. Southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. West southwest wind 8 to 10 mph becoming east southeast in the afternoon.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers between 7pm and 9pm. Mostly cloudy, with a low around 49. East southeast wind around 6 mph becoming northeast after midnight. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind 5 to 8 mph.

    High: 67 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North northeast wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a steady temperature around 60. Southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. West southwest wind 8 to 10 mph becoming east southeast in the afternoon.
Tuesday Night
A slight chance of showers between 7pm and 9pm. Mostly cloudy, with a low around 49. East southeast wind around 6 mph becoming northeast after midnight. Chance of precipitation is 20%.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 47. North northeast wind 9 to 13 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 62.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
Last Update:
8:31 pm CDT May 25, 2026
Forecast Valid:
9pm CDT May 25, 2026-6pm CDT Jun 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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