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

48°F

9°C

Humidity 59%
Wind Speed N 12 mph
Barometer 29.99 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 May 1:55 pm CDT
Extended Forecast for

Sister Bay WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 52. North wind 14 to 16 mph, with gusts as high as 25 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 54. North northwest wind 5 to 7 mph becoming light and variable.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 42. South wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a south wind 16 to 22 mph, with gusts as high as 32 mph.

    High: 58 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Breezy.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 52. North wind 14 to 16 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 40. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 54. North northwest wind 5 to 7 mph becoming light and variable.
Thursday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 42. South wind 7 to 11 mph, with gusts as high as 18 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a south wind 16 to 22 mph, with gusts as high as 32 mph.
Friday Night
Partly cloudy, with a low around 47. Breezy.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 42.
Sunday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 56.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Tuesday
A 40 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 87.15°W (Elev. 581 ft)
Last Update:
1:56 pm CDT May 13, 2026
Forecast Valid:
2pm CDT May 13, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation