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Current weather in Fontana-on-Geneva Lake is overcast clouds.

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Now · 6:44 AM

Fontana-on-Geneva Lake Weather & Hourly Forecast

United States · Wisconsin · 53125

55°F

Overcast

Feels like: 50°F

💧 Humidity 92% 🌡 Pressure 30.36 inHg 💨 Wind 10 mph 👁 Visibility 13.5 mi ☁ Clouds 96% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:41 AM 🌇 Sunset 6:51 PM

Hourly Forecast for Fontana-on-Geneva Lake

Today

7:00 AM

Mostly cloudy

55° 💧 None 💨 10 mph H 92%30.39 inHg

10:00 AM

Mostly sunny

61° 💧 0.004 in 💨 10 mph H 76%30.39 inHg

1:00 PM

Mostly cloudy

63° 💧 0.005 in 💨 10 mph H 72%30.39 inHg

4:00 PM

Partly cloudy

64° 💧 0.001 in 💨 11 mph H 68%30.36 inHg

7:00 PM

Overcast night

60° 💧 None 💨 8 mph H 80%30.36 inHg

10:00 PM

Mostly clear night

59° 💧 None 💨 6 mph H 85%30.36 inHg

Tomorrow

1:00 AM

Mostly clear night

56° 💧 None 💨 5 mph H 89%30.36 inHg

4:00 AM

Mostly clear night

54° 💧 None 💨 5 mph H 82%30.36 inHg

7:00 AM

Mostly sunny

53° 💧 None 💨 5 mph H 91%30.36 inHg

10:00 AM

Mostly cloudy

63° 💧 None 💨 10 mph H 72%30.36 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 9 mph H 67%30.33 inHg

4:00 PM

Overcast

65° 💧 None 💨 9 mph H 68%30.30 inHg

7:00 PM

Overcast night

60° 💧 None 💨 6 mph H 80%30.30 inHg

10:00 PM

Overcast night

59° 💧 None 💨 5 mph H 87%30.30 inHg

Friday

1:00 AM

Overcast night

59° 💧 None 💨 5 mph H 85%30.27 inHg

4:00 AM

Overcast night

58° 💧 None 💨 4 mph H 85%30.30 inHg

Today

7:00 AM

Mostly cloudy

55° 💧 None 💨 10 mph H 92%30.39 inHg

8:00 AM

Mostly cloudy

57° 💧 None 💨 11 mph H 87%30.39 inHg

9:00 AM

Mostly cloudy

59° 💧 None 💨 10 mph H 83%30.39 inHg

10:00 AM

Mostly sunny

61° 💧 None 💨 10 mph H 76%30.39 inHg

11:00 AM

Overcast

63° 💧 0.002 in 💨 11 mph H 69%30.42 inHg

12:00 PM

Mostly cloudy

62° 💧 0.002 in 💨 11 mph H 73%30.39 inHg

1:00 PM

Mostly cloudy

63° 💧 0.000 in 💨 10 mph H 72%30.39 inHg

2:00 PM

Overcast

64° 💧 0.003 in 💨 10 mph H 69%30.39 inHg

3:00 PM

Overcast

64° 💧 0.001 in 💨 11 mph H 68%30.36 inHg

4:00 PM

Partly cloudy

64° 💧 None 💨 11 mph H 68%30.36 inHg

5:00 PM

Overcast

63° 💧 0.001 in 💨 12 mph H 69%30.36 inHg

6:00 PM

Overcast

62° 💧 None 💨 10 mph H 75%30.36 inHg

7:00 PM

Overcast night

60° 💧 None 💨 8 mph H 80%30.36 inHg

8:00 PM

Overcast night

60° 💧 None 💨 7 mph H 82%30.36 inHg

9:00 PM

Mostly cloudy night

60° 💧 None 💨 7 mph H 83%30.36 inHg

10:00 PM

Mostly clear night

59° 💧 None 💨 6 mph H 85%30.36 inHg

11:00 PM

Mostly clear night

58° 💧 None 💨 6 mph H 88%30.36 inHg

Tomorrow

12:00 AM

Mostly clear night

57° 💧 None 💨 5 mph H 89%30.36 inHg

1:00 AM

Mostly clear night

56° 💧 None 💨 5 mph H 89%30.36 inHg

2:00 AM

Clear night

56° 💧 None 💨 6 mph H 87%30.36 inHg

3:00 AM

Clear night

54° 💧 None 💨 5 mph H 84%30.36 inHg

4:00 AM

Mostly clear night

54° 💧 None 💨 5 mph H 82%30.36 inHg

5:00 AM

Clear night

53° 💧 None 💨 6 mph H 85%30.36 inHg

6:00 AM

Clear night

54° 💧 None 💨 7 mph H 89%30.36 inHg

7:00 AM

Mostly sunny

53° 💧 None 💨 5 mph H 91%30.36 inHg

8:00 AM

Mostly sunny

56° 💧 None 💨 7 mph H 88%30.36 inHg

9:00 AM

Partly cloudy

60° 💧 None 💨 7 mph H 83%30.36 inHg

10:00 AM

Mostly cloudy

63° 💧 None 💨 10 mph H 72%30.36 inHg

11:00 AM

Mostly cloudy

64° 💧 None 💨 9 mph H 69%30.36 inHg

12:00 PM

Mostly cloudy

65° 💧 None 💨 9 mph H 68%30.36 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 9 mph H 67%30.33 inHg

2:00 PM

Mostly cloudy

66° 💧 None 💨 8 mph H 66%30.33 inHg

3:00 PM

Overcast

66° 💧 None 💨 8 mph H 66%30.30 inHg

4:00 PM

Overcast

65° 💧 None 💨 9 mph H 68%30.30 inHg

5:00 PM

Overcast

63° 💧 None 💨 9 mph H 71%30.30 inHg

6:00 PM

Overcast

62° 💧 None 💨 7 mph H 76%30.30 inHg

7:00 PM

Overcast night

60° 💧 None 💨 6 mph H 80%30.30 inHg

8:00 PM

Overcast night

59° 💧 None 💨 6 mph H 84%30.30 inHg

9:00 PM

Overcast night

59° 💧 None 💨 5 mph H 86%30.30 inHg

10:00 PM

Overcast night

59° 💧 None 💨 5 mph H 87%30.30 inHg

11:00 PM

Overcast night

59° 💧 None 💨 5 mph H 86%30.30 inHg

Friday

12:00 AM

Overcast night

59° 💧 None 💨 4 mph H 86%30.27 inHg

1:00 AM

Overcast night

59° 💧 None 💨 5 mph H 85%30.27 inHg

2:00 AM

Overcast night

59° 💧 None 💨 5 mph H 85%30.27 inHg

3:00 AM

Overcast night

59° 💧 None 💨 4 mph H 85%30.27 inHg

4:00 AM

Overcast night

58° 💧 None 💨 4 mph H 85%30.30 inHg

5:00 AM

Overcast night

58° 💧 None 💨 5 mph H 84%30.30 inHg

6:00 AM

Overcast night

57° 💧 None 💨 5 mph H 84%30.30 inHg

7:00 AM

Overcast

57° 💧 None 💨 4 mph H 85%30.30 inHg

8:00 AM

Mostly cloudy

58° 💧 None 💨 5 mph H 85%30.33 inHg

9:00 AM

Mostly cloudy

60° 💧 None 💨 6 mph H 79%30.33 inHg

10:00 AM

Mostly cloudy

62° 💧 None 💨 6 mph H 73%30.33 inHg

11:00 AM

Mostly sunny

64° 💧 None 💨 7 mph H 68%30.33 inHg

12:00 PM

Mostly sunny

65° 💧 None 💨 7 mph H 64%30.30 inHg

1:00 PM

Mostly sunny

67° 💧 None 💨 6 mph H 61%30.30 inHg

2:00 PM

Mostly sunny

67° 💧 None 💨 6 mph H 60%30.27 inHg

3:00 PM

Mostly cloudy

67° 💧 None 💨 6 mph H 60%30.27 inHg

4:00 PM

Mostly sunny

66° 💧 None 💨 7 mph H 60%30.24 inHg

5:00 PM

Sunny

64° 💧 None 💨 7 mph H 60%30.24 inHg

6:00 PM

Sunny

62° 💧 None 💨 7 mph H 66%30.27 inHg

7:00 PM

Mostly clear night

58° 💧 None 💨 6 mph H 73%30.24 inHg

10:00 PM

Mostly cloudy night

54° 💧 None 💨 4 mph H 85%30.27 inHg

Saturday

1:00 AM

Mostly clear night

53° 💧 None 💨 3 mph H 87%30.27 inHg

4:00 AM

Partly cloudy night

53° 💧 None 💨 4 mph H 92%30.24 inHg

7:00 AM

Overcast

53° 💧 None 💨 5 mph H 94%30.24 inHg

10:00 AM

Partly cloudy

60° 💧 None 💨 10 mph H 73%30.27 inHg

1:00 PM

Mostly sunny

65° 💧 None 💨 8 mph H 64%30.24 inHg

4:00 PM

Sunny

66° 💧 None 💨 8 mph H 66%30.18 inHg

7:00 PM

Mostly clear night

58° 💧 None 💨 7 mph H 87%30.15 inHg

10:00 PM

Mostly cloudy night

55° 💧 None 💨 5 mph H 93%30.18 inHg

Sunday

1:00 AM

Overcast night

56° 💧 None 💨 5 mph H 93%30.15 inHg

4:00 AM

Mostly cloudy night

54° 💧 None 💨 5 mph H 92%30.15 inHg

7:00 AM

Mostly cloudy

52° 💧 None 💨 5 mph H 94%30.15 inHg

10:00 AM

Overcast

63° 💧 None 💨 4 mph H 77%30.15 inHg

1:00 PM

Overcast

67° 💧 None 💨 5 mph H 64%30.12 inHg

4:00 PM

Overcast

67° 💧 None 💨 5 mph H 62%30.09 inHg

7:00 PM

Partly cloudy night

59° 💧 None 💨 5 mph H 83%30.06 inHg

10:00 PM

Mostly cloudy night

54° 💧 None 💨 3 mph H 89%30.06 inHg

Monday

1:00 AM

Clear night

52° 💧 None 💨 0 mph H 91%30.06 inHg

4:00 AM

Partly cloudy night

51° 💧 None 💨 0 mph H 95%30.06 inHg

7:00 AM

Partly cloudy

50° 💧 None 💨 1 mph H 96%30.06 inHg

10:00 AM

Sunny

63° 💧 None 💨 3 mph H 75%30.03 inHg

1:00 PM

Partly cloudy

68° 💧 None 💨 4 mph H 61%30.00 inHg

4:00 PM

Mostly sunny

70° 💧 None 💨 4 mph H 60%29.94 inHg

7:00 PM

Overcast night

64° 💧 None 💨 5 mph H 77%29.91 inHg

Tuesday

1:00 AM

Overcast night

58° 💧 None 💨 5 mph H 88%29.91 inHg

7:00 AM

Overcast

58° 💧 None 💨 7 mph H 85%29.88 inHg

1:00 PM

Overcast

70° 💧 None 💨 9 mph H 66%29.80 inHg

7:00 PM

Moderate rain

64° 💧 None 💨 8 mph H 93%29.71 inHg

Wednesday

1:00 AM

Moderate rain

64° 💧 None 💨 8 mph H 98%29.62 inHg

7:00 AM

Light rain

64° 💧 None 💨 4 mph H 99%29.56 inHg

1:00 PM

Light rain

66° 💧 None 💨 11 mph H 82%29.65 inHg

7:00 PM

Overcast night

62° 💧 None 💨 7 mph H 88%29.71 inHg

Thursday

1:00 AM

Overcast night

58° 💧 None 💨 10 mph H 82%29.74 inHg

7:00 AM

Overcast

54° 💧 None 💨 11 mph H 83%29.71 inHg

1:00 PM

Mostly cloudy

59° 💧 None 💨 12 mph H 69%29.71 inHg

7:00 PM

Overcast night

53° 💧 None 💨 9 mph H 88%29.80 inHg

Friday

1:00 AM

Partly cloudy night

52° 💧 None 💨 9 mph H 75%29.88 inHg

7:00 AM

Mostly cloudy

47° 💧 None 💨 8 mph H 80%29.97 inHg

1:00 PM

Overcast

56° 💧 None 💨 13 mph H 56%30.00 inHg

7:00 PM

Mostly cloudy night

52° 💧 None 💨 5 mph H 63%30.06 inHg

Saturday

1:00 AM

Mostly clear night

47° 💧 None 💨 3 mph H 82%30.12 inHg

7:00 AM

Sunny

42° 💧 None 💨 4 mph H 87%30.18 inHg

1:00 PM

Mostly cloudy

58° 💧 None 💨 6 mph H 51%30.21 inHg

7:00 PM

Mostly cloudy night

54° 💧 None 💨 3 mph H 72%30.18 inHg

Sunday

1:00 AM

Mostly clear night

51° 💧 None 💨 4 mph H 79%30.21 inHg

7:00 AM

Overcast

50° 💧 None 💨 5 mph H 77%30.24 inHg

1:00 PM

Sunny

65° 💧 None 💨 11 mph H 55%30.18 inHg

7:00 PM

Overcast night

60° 💧 None 💨 9 mph H 68%30.12 inHg

Monday

1:00 AM

Light rain

58° 💧 None 💨 11 mph H 74%30.09 inHg

7:00 AM

Mostly sunny

54° 💧 None 💨 9 mph H 93%30.06 inHg

1:00 PM

Overcast

68° 💧 None 💨 9 mph H 73%30.03 inHg

7:00 PM

Partly cloudy night

64° 💧 None 💨 5 mph H 80%29.97 inHg

Tuesday

1:00 AM

Clear night

63° 💧 None 💨 12 mph H 91%29.91 inHg

7:00 AM

Overcast

62° 💧 None 💨 11 mph H 97%29.88 inHg

1:00 PM

Mostly sunny

67° 💧 None 💨 13 mph H 55%29.94 inHg

7:00 PM

Clear night

58° 💧 None 💨 11 mph H 52%29.97 inHg

Wednesday

1:00 AM

Clear night

51° 💧 None 💨 10 mph H 62%30.03 inHg

7:00 AM

Sunny

46° 💧 None 💨 12 mph H 65%30.09 inHg

1:00 PM

Light rain

55° 💧 None 💨 16 mph H 51%30.06 inHg

7:00 PM

Mostly clear night

49° 💧 None 💨 10 mph H 63%30.06 inHg

In Fontana-on-Geneva Lake and, more broadly, across the state of Wisconsin: This morning will begin with mostly cloudy skies and cool temperatures ranging from 49 to 58 degrees Fahrenheit. The wind will be coming from the east at a moderate pace, reaching up to 12 mph, with gusts that could hit around 25 mph. As the day progresses into the afternoon, skies will remain mostly cloudy, but no precipitation is expected, keeping conditions dry. Temperatures are expected to stay steady within the same cool range, with wind speeds continuing from the east at similar levels. Overall, it will be a cool and breezy day with mostly cloudy skies and no significant weather concerns.

15-Day Weather Outlook for Fontana-on-Geneva Lake

TomorrowTomorrow

Mostly sunny 66°/53° 💧 None 💨 10 mph

Friday, Sep 25Fri Sep 25

Overcast 67°/54° 💧 0.011 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 66°/53° 💧 None 💨 10 mph

Sunday, Sep 27Sun Sep 27

Overcast 67°/52° 💧 None 💨 5 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 70°/50° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 70°/58° 💧 0.035 in 💨 9 mph

Wednesday, Sep 30Wed Sep 30

Moderate rain 66°/62° 💧 1.108 in 💨 11 mph

Thursday, Oct 1Thu Oct 1

Mostly cloudy 59°/53° 💧 0.036 in 💨 12 mph

Friday, Oct 2Fri Oct 2

Partly cloudy 56°/47° 💧 0.013 in 💨 13 mph

Saturday, Oct 3Sat Oct 3

Mostly sunny 58°/42° 💧 None 💨 6 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 65°/50° 💧 None 💨 11 mph

Monday, Oct 5Mon Oct 5

Light rain 68°/54° 💧 0.014 in 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Overcast 67°/58° 💧 0.004 in 💨 13 mph

Wednesday, Oct 7Wed Oct 7

Light rain 55°/46° 💧 0.013 in 💨 16 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Fontana-on-Geneva Lake

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Fontana-on-Geneva Lake

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 3,2µg/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 3,8µg/m³

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

O₃ Ozone Fair 64,1µg/m³

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

NO₂ Nitrogen dioxide Good 5,5µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Fontana-on-Geneva Lake

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 4,7Moderate 🙂Fair

Tomorrow UV 4,9Moderate 🙂Fair

Friday UV 5,5Moderate 😐Moderate

Saturday UV 4,6Moderate 😐Moderate

Sunday UV 5,0Moderate 🙂Fair

Monday UV 5,0Moderate —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,3 9:00 AMUV 0,9 10:00 AMUV 2,2 11:00 AMUV 3,8 12:00 PMUV 4,7 1:00 PMUV 4,1 2:00 PMUV 2,8 3:00 PMUV 2,1 4:00 PMUV 1,5 5:00 PMUV 0,8 6:00 PMUV 0,2

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Fontana-on-Geneva Lake

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FONTANA-ON-GENEVA LAKE, WISCONSIN

Tonight's Stargazing & Shooting Stars

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

94/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:24 PM–5:09 AM

☁ Cloud cover 9% Real hourly forecast for the best viewing hour.

☾ Moonlight 95% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 60° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min70%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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.

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Forecast data for Fontana-on-Geneva Lake were last refreshed today at 5:48 AM. The current forecast period extends through 25/09/2026 at 4:00 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.