Current conditions at

Ephraim-Gibraltar Airport (K3D2)

Lat: 45.14°NLon: 87.19°WElev: 773ft.

Fair

52°F

11°C

Humidity 62%
Wind Speed E 10 mph
Barometer 30.35 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 22 Sep 1:35 am CDT
Extended Forecast for

Sister Bay WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. East wind around 11 mph.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 61. East wind 11 to 14 mph, with gusts as high as 18 mph.

    High: 61 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. East wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. East wind 9 to 11 mph.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Southeast wind 6 to 8 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. East wind around 11 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 61. East wind 11 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 49. East wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 63. East wind 9 to 11 mph.
Wednesday Night
Mostly clear, with a low around 51. Southeast wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
1:12 am CDT Sep 22, 2026
1am CDT Sep 22, 2026-6pm CDT Sep 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database