Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes
Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >
Hazardous Weather Conditions
Current conditions at
Ephraim-Gibraltar Airport (K3D2)
Lat: 45.14°NLon: 87.19°WElev: 773ft.
Fair
78°F
26°C
| Humidity | 72% |
| Wind Speed | S 6 mph |
| Barometer | 29.66 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 21 Jun 5:15 pm CDT |
Extended Forecast for
Sister Bay WI
Tonight
Low: 68 °F
Mostly Cloudy
Sunday
High: 78 °F
Sunny
Sunday Night
Low: 73 °F
Mostly Clear
Monday
High: 81 °F
Sunny then
Chance
T-stormsMonday Night
Low: 64 °F
Showers
LikelyTuesday
High: 70 °F
Chance
ShowersTuesday Night
Low: 58 °F
Showers
LikelyWednesday
High: 66 °F
Showers
LikelyWednesday Night
Low: 58 °F
Showers
Detailed Forecast
Tonight
Mostly cloudy, with a low around 68. South southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 78. South southwest wind around 16 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a steady temperature around 73. South wind around 17 mph, with gusts as high as 24 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 81. South southwest wind 14 to 16 mph, with gusts as high as 24 mph.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 64. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 69.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sister Bay WI
45.19°N 87.15°W (Elev. 581 ft)
45.19°N 87.15°W (Elev. 581 ft)
3:51 pm CDT Jun 21, 2025
5pm CDT Jun 21, 2025-6pm CDT Jun 28, 2025
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