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.

Overcast

13°F

-11°C

Humidity 74%
Wind Speed NW 10 mph
Barometer 29.92 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 15 Jan 8:35 am CST
Extended Forecast for

Sister Bay WI

  • Today

    Today: Partly sunny, with a high near 20. North northwest wind 6 to 9 mph becoming south southwest in the afternoon.

    High: 20 °F

    Partly Sunny

  • Tonight

    Tonight: Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 23 by 5am. South southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 17 °F⇑

    Snow Likely

  • Friday

    Friday: Snow likely, mainly before noon. Cloudy, with a high near 29. West wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 29 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 18. West northwest wind 6 to 8 mph.

    Low: 18 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Mostly cloudy, with a high near 25. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 25 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 14.

    High: 14 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 2.

    Low: 2 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: A 30 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 8.

    High: 8 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, with a high near 20. North northwest wind 6 to 9 mph becoming south southwest in the afternoon.
Tonight
Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 23 by 5am. South southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow likely, mainly before noon. Cloudy, with a high near 29. West wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 18. West northwest wind 6 to 8 mph.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 25. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 7.
Sunday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 14.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 2.
M.L.King Day
A 30 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 8.
Monday Night
Mostly cloudy, with a low around -5.
Tuesday
Partly sunny and cold, with a high near 8.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 0.
Wednesday
Mostly cloudy, with a high near 14.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sister Bay WI
 45.19°N 87.12°W (Elev. 630 ft)
Last Update:
8:37 am CST Jan 15, 2026
Forecast Valid:
8am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
Forecast Discussion
 
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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