What is the weather in Sister Bay right now?

Current weather in Sister Bay is broken clouds.

Where can I find the hourly weather forecast for Sister Bay?

This page shows hourly weather forecast for Sister Bay, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Sister Bay updated regularly?

Weather data for Sister Bay is updated regularly with the latest available observations and forecasts.

Now · 8:19 AM

Sister Bay Weather & Hourly Forecast

United States · Wisconsin · 54234

69°F

Mostly cloudy

Feels like: 68°F

💧 Humidity 96% 🌡 Pressure 29.88 inHg 💨 Wind 13 mph 👁 Visibility 13.5 mi ☁ Clouds 66% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Sister Bay

Today

9:00 AM

Mostly sunny

70° 💧 None 💨 13 mph H 93%29.88 inHg

12:00 PM

Sunny

75° 💧 0.000 in 💨 14 mph H 66%29.88 inHg

3:00 PM

Sunny

77° 💧 None 💨 16 mph H 61%29.83 inHg

6:00 PM

Sunny

75° 💧 None 💨 14 mph H 59%29.83 inHg

9:00 PM

Clear night

71° 💧 None 💨 9 mph H 72%29.88 inHg

Tomorrow

12:00 AM

Clear night

67° 💧 None 💨 8 mph H 82%29.91 inHg

3:00 AM

Partly cloudy night

65° 💧 None 💨 10 mph H 78%29.91 inHg

6:00 AM

Clear night

63° 💧 None 💨 9 mph H 81%29.94 inHg

9:00 AM

Sunny

64° 💧 None 💨 9 mph H 78%29.97 inHg

12:00 PM

Sunny

69° 💧 None 💨 8 mph H 57%30.00 inHg

3:00 PM

Mostly cloudy

72° 💧 None 💨 10 mph H 44%29.94 inHg

6:00 PM

Mostly sunny

72° 💧 None 💨 7 mph H 49%29.91 inHg

9:00 PM

Clear night

69° 💧 None 💨 1 mph H 63%29.94 inHg

Friday

12:00 AM

Clear night

67° 💧 None 💨 6 mph H 80%29.94 inHg

3:00 AM

Clear night

66° 💧 None 💨 6 mph H 84%29.94 inHg

6:00 AM

Clear night

66° 💧 None 💨 10 mph H 81%29.97 inHg

Today

9:00 AM

Mostly sunny

70° 💧 None 💨 13 mph H 93%29.88 inHg

10:00 AM

Mostly sunny

71° 💧 None 💨 14 mph H 86%29.88 inHg

11:00 AM

Sunny

73° 💧 None 💨 13 mph H 73%29.88 inHg

12:00 PM

Sunny

75° 💧 0.000 in 💨 14 mph H 66%29.88 inHg

1:00 PM

Sunny

76° 💧 None 💨 15 mph H 63%29.85 inHg

2:00 PM

Sunny

76° 💧 None 💨 16 mph H 62%29.83 inHg

3:00 PM

Sunny

77° 💧 None 💨 16 mph H 61%29.83 inHg

4:00 PM

Mostly sunny

77° 💧 None 💨 16 mph H 60%29.80 inHg

5:00 PM

Sunny

77° 💧 None 💨 16 mph H 58%29.80 inHg

6:00 PM

Sunny

75° 💧 None 💨 14 mph H 59%29.83 inHg

7:00 PM

Mostly sunny

73° 💧 None 💨 12 mph H 64%29.83 inHg

8:00 PM

Clear night

72° 💧 None 💨 11 mph H 67%29.85 inHg

9:00 PM

Clear night

71° 💧 None 💨 9 mph H 72%29.88 inHg

10:00 PM

Clear night

69° 💧 None 💨 8 mph H 77%29.91 inHg

11:00 PM

Clear night

68° 💧 None 💨 8 mph H 80%29.91 inHg

Tomorrow

12:00 AM

Clear night

67° 💧 None 💨 8 mph H 82%29.91 inHg

1:00 AM

Clear night

67° 💧 None 💨 11 mph H 79%29.91 inHg

2:00 AM

Clear night

66° 💧 None 💨 11 mph H 78%29.91 inHg

3:00 AM

Partly cloudy night

65° 💧 None 💨 10 mph H 78%29.91 inHg

4:00 AM

Partly cloudy night

65° 💧 None 💨 9 mph H 78%29.94 inHg

5:00 AM

Clear night

64° 💧 None 💨 8 mph H 79%29.94 inHg

6:00 AM

Clear night

63° 💧 None 💨 9 mph H 81%29.94 inHg

7:00 AM

Sunny

63° 💧 None 💨 10 mph H 82%29.97 inHg

8:00 AM

Sunny

63° 💧 None 💨 10 mph H 81%29.97 inHg

9:00 AM

Sunny

64° 💧 None 💨 9 mph H 78%29.97 inHg

10:00 AM

Sunny

66° 💧 None 💨 10 mph H 73%30.00 inHg

11:00 AM

Sunny

67° 💧 None 💨 9 mph H 65%30.00 inHg

12:00 PM

Sunny

69° 💧 None 💨 8 mph H 57%30.00 inHg

1:00 PM

Mostly sunny

71° 💧 None 💨 8 mph H 48%29.97 inHg

2:00 PM

Mostly cloudy

72° 💧 None 💨 9 mph H 44%29.97 inHg

3:00 PM

Mostly cloudy

72° 💧 None 💨 10 mph H 44%29.94 inHg

4:00 PM

Mostly cloudy

72° 💧 None 💨 10 mph H 45%29.94 inHg

5:00 PM

Partly cloudy

72° 💧 None 💨 9 mph H 45%29.94 inHg

6:00 PM

Mostly sunny

72° 💧 None 💨 7 mph H 49%29.91 inHg

7:00 PM

Sunny

70° 💧 None 💨 4 mph H 57%29.91 inHg

8:00 PM

Clear night

69° 💧 None 💨 3 mph H 61%29.94 inHg

9:00 PM

Clear night

69° 💧 None 💨 1 mph H 63%29.94 inHg

10:00 PM

Clear night

68° 💧 None 💨 4 mph H 74%29.94 inHg

11:00 PM

Clear night

67° 💧 None 💨 5 mph H 80%29.94 inHg

Friday

12:00 AM

Clear night

67° 💧 None 💨 6 mph H 80%29.94 inHg

1:00 AM

Clear night

67° 💧 None 💨 6 mph H 81%29.94 inHg

2:00 AM

Clear night

66° 💧 None 💨 6 mph H 83%29.94 inHg

3:00 AM

Clear night

66° 💧 None 💨 6 mph H 84%29.94 inHg

4:00 AM

Clear night

66° 💧 None 💨 8 mph H 83%29.94 inHg

5:00 AM

Mostly clear night

66° 💧 None 💨 9 mph H 82%29.97 inHg

6:00 AM

Clear night

66° 💧 None 💨 10 mph H 81%29.97 inHg

7:00 AM

Sunny

66° 💧 None 💨 9 mph H 82%29.97 inHg

8:00 AM

Sunny

67° 💧 None 💨 10 mph H 77%29.97 inHg

9:00 AM

Sunny

69° 💧 None 💨 10 mph H 70%29.94 inHg

10:00 AM

Sunny

71° 💧 None 💨 12 mph H 65%29.94 inHg

11:00 AM

Sunny

73° 💧 None 💨 12 mph H 60%29.94 inHg

12:00 PM

Sunny

74° 💧 None 💨 13 mph H 59%29.91 inHg

1:00 PM

Sunny

74° 💧 None 💨 13 mph H 64%29.91 inHg

2:00 PM

Partly cloudy

74° 💧 None 💨 14 mph H 67%29.88 inHg

3:00 PM

Partly cloudy

74° 💧 None 💨 14 mph H 70%29.88 inHg

4:00 PM

Mostly cloudy

73° 💧 None 💨 16 mph H 74%29.85 inHg

5:00 PM

Mostly cloudy

72° 💧 None 💨 18 mph H 75%29.85 inHg

6:00 PM

Partly cloudy

70° 💧 None 💨 19 mph H 79%29.85 inHg

7:00 PM

Mostly cloudy

69° 💧 None 💨 19 mph H 82%29.83 inHg

10:00 PM

Mostly cloudy night

69° 💧 None 💨 20 mph H 81%29.83 inHg

Saturday

1:00 AM

Mostly cloudy night

69° 💧 None 💨 20 mph H 78%29.83 inHg

4:00 AM

Overcast night

68° 💧 None 💨 19 mph H 79%29.80 inHg

7:00 AM

Overcast

68° 💧 None 💨 19 mph H 78%29.74 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 20 mph H 85%29.74 inHg

1:00 PM

Mostly cloudy

69° 💧 None 💨 13 mph H 88%29.77 inHg

4:00 PM

Mostly sunny

75° 💧 None 💨 8 mph H 77%29.77 inHg

7:00 PM

Mostly cloudy

74° 💧 None 💨 12 mph H 68%29.85 inHg

10:00 PM

Clear night

69° 💧 None 💨 13 mph H 68%29.94 inHg

Sunday

1:00 AM

Clear night

67° 💧 None 💨 9 mph H 70%29.97 inHg

4:00 AM

Mostly clear night

65° 💧 None 💨 11 mph H 73%30.00 inHg

7:00 AM

Mostly cloudy

63° 💧 None 💨 10 mph H 78%30.03 inHg

10:00 AM

Mostly sunny

64° 💧 None 💨 6 mph H 75%30.06 inHg

1:00 PM

Partly cloudy

67° 💧 None 💨 2 mph H 58%30.06 inHg

4:00 PM

Overcast

70° 💧 None 💨 7 mph H 54%30.03 inHg

7:00 PM

Overcast

70° 💧 None 💨 10 mph H 59%30.03 inHg

10:00 PM

Overcast night

69° 💧 None 💨 20 mph H 67%30.00 inHg

Monday

1:00 AM

Heavy rain

68° 💧 None 💨 19 mph H 81%30.00 inHg

4:00 AM

Light rain

66° 💧 None 💨 26 mph H 87%29.97 inHg

7:00 AM

Light rain

67° 💧 None 💨 22 mph H 89%29.91 inHg

10:00 AM

Heavy rain

69° 💧 None 💨 10 mph H 92%29.88 inHg

1:00 PM

Light rain

72° 💧 None 💨 18 mph H 92%29.80 inHg

4:00 PM

Mostly sunny

73° 💧 None 💨 20 mph H 87%29.71 inHg

7:00 PM

Light thunderstorms

70° 💧 None 💨 18 mph H 94%29.68 inHg

Tuesday

1:00 AM

Overcast night

68° 💧 None 💨 24 mph H 96%29.71 inHg

7:00 AM

Sunny

61° 💧 None 💨 13 mph H 84%29.97 inHg

1:00 PM

Mostly cloudy

64° 💧 None 💨 9 mph H 63%30.12 inHg

7:00 PM

Partly cloudy

68° 💧 None 💨 10 mph H 51%30.21 inHg

Wednesday

1:00 AM

Clear night

63° 💧 None 💨 12 mph H 64%30.33 inHg

7:00 AM

Sunny

62° 💧 None 💨 10 mph H 67%30.39 inHg

1:00 PM

Overcast

64° 💧 None 💨 7 mph H 61%30.39 inHg

7:00 PM

Partly cloudy night

65° 💧 None 💨 10 mph H 62%30.30 inHg

Thursday

1:00 AM

Overcast night

66° 💧 None 💨 19 mph H 75%30.27 inHg

7:00 AM

Partly cloudy

65° 💧 None 💨 15 mph H 84%30.21 inHg

1:00 PM

Mostly cloudy

69° 💧 None 💨 10 mph H 78%30.12 inHg

7:00 PM

Heavy rain

69° 💧 None 💨 15 mph H 91%30.00 inHg

Friday

1:00 AM

Overcast night

69° 💧 None 💨 14 mph H 93%29.97 inHg

7:00 AM

Partly cloudy

67° 💧 None 💨 17 mph H 86%30.03 inHg

1:00 PM

Mostly sunny

67° 💧 None 💨 7 mph H 68%30.09 inHg

7:00 PM

Mostly cloudy night

67° 💧 None 💨 6 mph H 60%30.09 inHg

Saturday

1:00 AM

Partly cloudy night

60° 💧 None 💨 17 mph H 69%30.12 inHg

7:00 AM

Overcast

60° 💧 None 💨 12 mph H 69%30.09 inHg

1:00 PM

Moderate rain

58° 💧 None 💨 19 mph H 74%30.00 inHg

7:00 PM

Overcast night

61° 💧 None 💨 23 mph H 79%29.80 inHg

Sunday

1:00 AM

Heavy rain

65° 💧 None 💨 11 mph H 93%29.56 inHg

7:00 AM

Sunny

63° 💧 None 💨 14 mph H 89%29.62 inHg

1:00 PM

Mostly cloudy

67° 💧 None 💨 14 mph H 75%29.68 inHg

7:00 PM

Mostly clear night

67° 💧 None 💨 9 mph H 75%29.77 inHg

Monday

1:00 AM

Partly cloudy night

61° 💧 None 💨 10 mph H 82%29.88 inHg

7:00 AM

Mostly sunny

57° 💧 None 💨 11 mph H 87%29.97 inHg

1:00 PM

Sunny

63° 💧 None 💨 1 mph H 61%30.03 inHg

7:00 PM

Mostly clear night

66° 💧 None 💨 9 mph H 66%30.06 inHg

Tuesday

1:00 AM

Overcast night

66° 💧 None 💨 8 mph H 71%30.12 inHg

7:00 AM

Mostly sunny

65° 💧 None 💨 4 mph H 71%30.15 inHg

1:00 PM

Sunny

67° 💧 None 💨 5 mph H 61%30.21 inHg

7:00 PM

Clear night

68° 💧 None 💨 5 mph H 61%30.18 inHg

Wednesday

1:00 AM

Clear night

67° 💧 None 💨 9 mph H 75%30.15 inHg

7:00 AM

Sunny

62° 💧 None 💨 9 mph H 90%30.15 inHg

1:00 PM

Sunny

67° 💧 None 💨 14 mph H 84%30.06 inHg

7:00 PM

Partly cloudy night

68° 💧 None 💨 17 mph H 81%29.97 inHg

In Sister Bay and, more broadly, across the state of Wisconsin: This morning features a mix of sun and clouds with mild temperatures around 66 degrees. Expect winds from the west at up to 16 mph, with gusts reaching 29 mph, creating a breezy start to the day. As the afternoon approaches, temperatures will warm to about 78 degrees, with the sky remaining partly sunny. Winds will continue from the west, maintaining moderate strength, although gusts may occasionally pick up. No precipitation is expected throughout the day, making it a generally dry and comfortable day with a pleasant mix of sun and clouds.

15-Day Weather Outlook for Sister Bay

TomorrowTomorrow

Mostly sunny 73°/63° 💧 None 💨 12 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 74°/66° 💧 None 💨 19 mph

Saturday, Sep 12Sat Sep 12

Mostly cloudy 75°/68° 💧 0.058 in 💨 20 mph

Sunday, Sep 13Sun Sep 13

Mostly cloudy 74°/63° 💧 None 💨 13 mph

Monday, Sep 14Mon Sep 14

Heavy rain 73°/66° 💧 1.235 in 💨 26 mph

Tuesday, Sep 15Tue Sep 15

Light thunderstorms 70°/61° 💧 0.718 in 💨 24 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 68°/62° 💧 None 💨 12 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 69°/65° 💧 0.008 in 💨 19 mph

Friday, Sep 18Fri Sep 18

Heavy rain 69°/67° 💧 0.186 in 💨 17 mph

Saturday, Sep 19Sat Sep 19

Moderate rain 67°/58° 💧 0.160 in 💨 19 mph

Sunday, Sep 20Sun Sep 20

Heavy rain 67°/61° 💧 0.664 in 💨 23 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 67°/57° 💧 None 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 67°/65° 💧 None 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Sunny 68°/62° 💧 None 💨 14 mph

Thursday, Sep 24Thu Sep 24

Partly cloudy 68°/68° 💧 None 💨 17 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Sister Bay

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Sister Bay

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 7,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 7,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 57,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Sister Bay

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,2High 😊Good

Tomorrow UV 5,4Moderate 🙂Fair

Friday UV 6,0High 😐Moderate

Saturday UV 5,8Moderate 😐Moderate

Sunday UV 5,0Moderate 😊Good

Monday UV 4,0Moderate —Unavailable

Tuesday UV 4,0Moderate —Unavailable

Hourly UV index today

9:00 AMUV 0,9 10:00 AMUV 2,3 11:00 AMUV 4,0 12:00 PMUV 4,9 1:00 PMUV 6,2 2:00 PMUV 5,5 3:00 PMUV 4,2 4:00 PMUV 2,6 5:00 PMUV 1,2 6:00 PMUV 0,3 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Sister Bay

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SISTER BAY, WISCONSIN

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:53 PM–4:39 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Port Huron US · Michigan · 28,620 residents Hightstown US · New Jersey · 5,920 residents Princess Anne US · Maryland · 3,569 residents Clarion US · Iowa · 2,770 residents Forest US · Virginia · 13,430 residents Newfield GB · England · 1,530 residents Glasgow GB · Scotland · 970,320 residents Clinton US · Mississippi · 27,195 residents Denver US · North Carolina · 2,497 residents Cass Lake US · Minnesota · 635 residents Wishaw GB · Scotland · 109,579 residents Sherman US · Texas · 46,397 residents Temple Sowerby GB · England · 420 residents Charlotte US · North Carolina · 903,844 residents Bath US · New York · 5,560 residents Unionville US · New York · 695 residents

Forecast data for Sister Bay were last refreshed today at 7:37 AM. The current forecast period extends through 11/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.