Current conditions at

Ephraim-Gibraltar Airport (K3D2)

Lat: 45.14°NLon: 87.19°WElev: 773ft.

Fair

68°F

20°C

Humidity 26%
Wind Speed SW 18 G 33 mph
Barometer 29.34 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 4 May 10:15 am CDT
Extended Forecast for

Sister Bay WI

  • Today

    Today: A 30 percent chance of showers, mainly after 5pm.  Partly sunny, with a high near 68. West southwest wind 16 to 21 mph, with gusts as high as 31 mph.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 51. West wind 7 to 9 mph.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. West northwest wind around 6 mph becoming northeast after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. Northwest wind around 6 mph becoming south in the afternoon.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 3am.  Otherwise, mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 7am.  Otherwise, partly sunny, with a high near 49.

    High: 49 °F

    Areas Frost
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 5pm. Partly sunny, with a high near 68. West southwest wind 16 to 21 mph, with gusts as high as 31 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 51. West wind 7 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 36. West northwest wind around 6 mph becoming northeast after midnight.
Wednesday
Partly sunny, with a high near 49. Northwest wind around 6 mph becoming south in the afternoon.
Wednesday Night
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 36.
Thursday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
10:13 am CDT May 4, 2026
10am CDT May 4, 2026-6pm CDT May 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database