Sister Bay, WI Weather
Sister Bay, WI climate is mild during summer when temperatures tend to be in the 60's and extremely cold during winter when temperatures tend to be in the 10's.
The warmest month of the year is July with an average maximum temperature of 73.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.20 degrees Fahrenheit.
Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 15 degrees Fahrenheit, and fairly limited during winter with an average difference of 15 degrees Fahrenheit.
The annual average precipitation at Sister Bay is 28.54 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is September with an average rainfall of 3.34 Inches.
Weather Data
Current Conditions
|
Fair, 34°F | Humidity: 93% | Dewpoint: 32°F |
| Wind Speed: CALM | Heat Index: 34°F | ||
| Barometer: 30.09 in. | Wind Chill: 34°F |
Weather Forecast
 | Hi: 50°F | Today: Partly sunny. Highs around 50 at The lakeshore to around 58 inland. East wind 5 to 10 mph. |
| Lo: 49°F | ||
| Hi: 54°F | Monday: Partly sunny. Highs 51 to 56. West wind 10 to 15 mph becoming northwest at 5 to 10 mph in the afternoon. |
| Lo: 41°F | ||
 | Hi: 50°F | Tuesday: Mostly sunny. Highs around 50. North wind 5 to 10 mph. |
| Lo: 35°F | ||
| Hi: 50°F | Veterans day: Mostly sunny. Highs around 50. |
| Lo: 39°F | ||
| Hi: 50°F | Thursday: Partly sunny. Highs around 50. |
| Lo: 41°F | ||
| Hi: 49°F | Friday: Partly sunny and breezy. Highs in the upper 40s. |
| Lo: 39°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Gibbous Moon | Civil Twilight: 6:04 AM CST |
Sunrise: 6:36 AM CST |
| Sunset: 4:27 PM CST |
Civil Twilight: 4:58 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 23.6 | 26.1 | 35.4 | 46.4 | 58.9 | 67.7 | 73.8 | 72.5 | 64.7 | 53.3 | 40.6 | 29.1 | 49.3 |
| Mean °F | 16.4 | 18.0 | 27.7 | 38.6 | 50.0 | 59.4 | 66.1 | 65.3 | 58.1 | 47.0 | 35.1 | 23.7 | 42.1 |
| Min °F | 9.2 | 9.8 | 19.9 | 30.7 | 41.0 | 51.0 | 58.3 | 58.0 | 51.4 | 40.7 | 29.5 | 18.3 | 34.8 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 1.58 | 0.84 | 1.67 | 2.26 | 2.65 | 3.20 | 3.06 | 3.27 | 3.34 | 2.79 | 2.43 | 1.45 | 28.54 |
