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

76°F

24°C

Humidity 53%
Wind Speed W 5 mph
Barometer 29.92 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Sep 1:35 pm CDT
Extended Forecast for

3 Miles E Sister Bay WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. South wind 3 to 6 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 62. South wind around 5 mph becoming light and variable.

    Low: 62 °F

    Partly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers between 1pm and 5pm. Partly sunny, with a high near 75. East northeast wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 62. Light east wind. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. East wind 5 to 8 mph.

    High: 75 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. South wind 3 to 6 mph.
Tonight
A 20 percent chance of showers after 4am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 62. South wind around 5 mph becoming light and variable.
Thursday
A chance of showers between 1pm and 5pm. Partly sunny, with a high near 75. East northeast wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 62. Light east wind. Chance of precipitation is 60%.
Friday
A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. East wind 5 to 8 mph.
Friday Night
Mostly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
Sunday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 61.
Labor Day
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sister Bay WI
 45.18°N 87.06°W (Elev. 623 ft)
Last Update:
1:21 pm CDT Sep 2, 2026
Forecast Valid:
1pm CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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