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Weather data for South Haven is updated regularly with the latest available observations and forecasts.

Now · 11:30 PM

South Haven Weather & Hourly Forecast

United States · Michigan · 49090

66°F

Mostly clear night

Feels like: 58°F

💧 Humidity 65% 🌡 Pressure 30.09 inHg 💨 Wind 17 mph 👁 Visibility 21.0 mi ☁ Clouds 27% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for South Haven

Tomorrow

12:00 AM

Mostly clear night

66° 💧 None 💨 17 mph H 65%30.09 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 17 mph H 69%30.03 inHg

6:00 AM

Overcast night

68° 💧 0.004 in 💨 19 mph H 71%30.00 inHg

9:00 AM

Light rain

69° 💧 0.008 in 💨 15 mph H 74%30.03 inHg

12:00 PM

Overcast

71° 💧 None 💨 15 mph H 75%30.06 inHg

3:00 PM

Overcast

72° 💧 0.001 in 💨 13 mph H 81%30.03 inHg

6:00 PM

Light rain

73° 💧 0.074 in 💨 5 mph H 85%30.06 inHg

9:00 PM

Light thunderstorms

72° 💧 0.137 in 💨 8 mph H 93%30.12 inHg

Wednesday

12:00 AM

Mostly cloudy night

72° 💧 0.004 in 💨 5 mph H 96%30.15 inHg

3:00 AM

Partly cloudy night

70° 💧 0.002 in 💨 10 mph H 88%30.18 inHg

6:00 AM

Overcast night

67° 💧 0.023 in 💨 10 mph H 91%30.21 inHg

9:00 AM

Light rain

67° 💧 0.075 in 💨 9 mph H 94%30.27 inHg

12:00 PM

Light rain

69° 💧 0.020 in 💨 9 mph H 92%30.33 inHg

3:00 PM

Overcast

71° 💧 0.000 in 💨 9 mph H 86%30.27 inHg

6:00 PM

Light rain

73° 💧 0.065 in 💨 11 mph H 83%30.21 inHg

9:00 PM

Overcast night

71° 💧 0.033 in 💨 10 mph H 93%30.21 inHg

Tomorrow

12:00 AM

Mostly clear night

66° 💧 None 💨 17 mph H 65%30.09 inHg

1:00 AM

Overcast night

66° 💧 None 💨 19 mph H 67%30.06 inHg

2:00 AM

Overcast night

66° 💧 None 💨 18 mph H 68%30.06 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 17 mph H 69%30.03 inHg

4:00 AM

Overcast night

67° 💧 None 💨 18 mph H 69%30.00 inHg

5:00 AM

Mostly cloudy night

67° 💧 None 💨 20 mph H 70%30.00 inHg

6:00 AM

Overcast night

68° 💧 None 💨 19 mph H 71%30.00 inHg

7:00 AM

Overcast night

68° 💧 None 💨 18 mph H 71%30.00 inHg

8:00 AM

Light rain

68° 💧 0.004 in 💨 18 mph H 75%30.00 inHg

9:00 AM

Light rain

69° 💧 0.008 in 💨 15 mph H 74%30.03 inHg

10:00 AM

Partly cloudy

71° 💧 None 💨 16 mph H 71%30.00 inHg

11:00 AM

Overcast

72° 💧 None 💨 19 mph H 71%30.03 inHg

12:00 PM

Overcast

71° 💧 None 💨 15 mph H 75%30.06 inHg

1:00 PM

Overcast

71° 💧 None 💨 15 mph H 77%30.06 inHg

2:00 PM

Mostly cloudy

72° 💧 None 💨 14 mph H 80%30.03 inHg

3:00 PM

Overcast

72° 💧 None 💨 13 mph H 81%30.03 inHg

4:00 PM

Overcast

73° 💧 None 💨 10 mph H 83%30.03 inHg

5:00 PM

Overcast

73° 💧 0.001 in 💨 7 mph H 85%30.03 inHg

6:00 PM

Light rain

73° 💧 0.007 in 💨 5 mph H 85%30.06 inHg

7:00 PM

Light rain

73° 💧 0.039 in 💨 6 mph H 88%30.06 inHg

8:00 PM

Light thunderstorms

72° 💧 0.029 in 💨 3 mph H 91%30.06 inHg

9:00 PM

Light thunderstorms

72° 💧 0.057 in 💨 8 mph H 93%30.12 inHg

10:00 PM

Light thunderstorms

72° 💧 0.078 in 💨 2 mph H 94%30.12 inHg

11:00 PM

Overcast night

72° 💧 0.002 in 💨 6 mph H 95%30.15 inHg

Wednesday

12:00 AM

Mostly cloudy night

72° 💧 0.003 in 💨 5 mph H 96%30.15 inHg

1:00 AM

Mostly cloudy night

72° 💧 0.001 in 💨 6 mph H 97%30.15 inHg

2:00 AM

Partly cloudy night

72° 💧 0.000 in 💨 8 mph H 90%30.18 inHg

3:00 AM

Partly cloudy night

70° 💧 None 💨 10 mph H 88%30.18 inHg

4:00 AM

Mostly cloudy night

69° 💧 0.000 in 💨 9 mph H 90%30.18 inHg

5:00 AM

Overcast night

68° 💧 0.002 in 💨 9 mph H 90%30.21 inHg

6:00 AM

Overcast night

67° 💧 None 💨 10 mph H 91%30.21 inHg

7:00 AM

Mostly cloudy night

67° 💧 None 💨 10 mph H 93%30.24 inHg

8:00 AM

Light rain

67° 💧 0.023 in 💨 7 mph H 93%30.27 inHg

9:00 AM

Light rain

67° 💧 0.066 in 💨 9 mph H 94%30.27 inHg

10:00 AM

Overcast

68° 💧 0.003 in 💨 9 mph H 94%30.30 inHg

11:00 AM

Light rain

69° 💧 0.006 in 💨 10 mph H 92%30.30 inHg

12:00 PM

Light rain

69° 💧 0.014 in 💨 9 mph H 92%30.33 inHg

1:00 PM

Light rain

70° 💧 0.005 in 💨 9 mph H 90%30.30 inHg

2:00 PM

Overcast

70° 💧 0.001 in 💨 9 mph H 89%30.30 inHg

3:00 PM

Overcast

71° 💧 None 💨 9 mph H 86%30.27 inHg

4:00 PM

Mostly cloudy

72° 💧 None 💨 10 mph H 84%30.27 inHg

5:00 PM

Overcast

73° 💧 0.000 in 💨 7 mph H 79%30.24 inHg

6:00 PM

Light rain

73° 💧 0.052 in 💨 11 mph H 83%30.21 inHg

7:00 PM

Light rain

72° 💧 0.012 in 💨 9 mph H 89%30.24 inHg

8:00 PM

Overcast night

71° 💧 0.001 in 💨 10 mph H 93%30.21 inHg

9:00 PM

Overcast night

71° 💧 0.000 in 💨 10 mph H 93%30.21 inHg

10:00 PM

Light rain

70° 💧 0.004 in 💨 10 mph H 94%30.21 inHg

11:00 PM

Light rain

70° 💧 0.029 in 💨 9 mph H 95%30.21 inHg

Thursday

12:00 AM

Light rain

70° 💧 0.021 in 💨 10 mph H 96%30.18 inHg

1:00 AM

Light rain

71° 💧 0.020 in 💨 9 mph H 97%30.18 inHg

2:00 AM

Light thunderstorms

72° 💧 0.071 in 💨 12 mph H 96%30.15 inHg

3:00 AM

Thunderstorms

72° 💧 0.173 in 💨 12 mph H 95%30.15 inHg

4:00 AM

Severe thunderstorms

72° 💧 0.429 in 💨 6 mph H 95%30.15 inHg

5:00 AM

Severe thunderstorms

72° 💧 0.367 in 💨 2 mph H 95%30.15 inHg

6:00 AM

Severe thunderstorms

71° 💧 0.326 in 💨 5 mph H 97%30.15 inHg

7:00 AM

Thunderstorms

71° 💧 0.192 in 💨 4 mph H 98%30.15 inHg

8:00 AM

Light thunderstorms

71° 💧 0.043 in 💨 3 mph H 96%30.15 inHg

5:00 PM

Sunny

73° 💧 None 💨 13 mph H 86%30.12 inHg

8:00 PM

Partly cloudy night

70° 💧 None 💨 10 mph H 91%30.15 inHg

11:00 PM

Overcast night

70° 💧 None 💨 11 mph H 86%30.21 inHg

Friday

2:00 AM

Overcast night

68° 💧 None 💨 10 mph H 82%30.21 inHg

5:00 AM

Mostly clear night

64° 💧 None 💨 10 mph H 89%30.24 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 9 mph H 87%30.27 inHg

11:00 AM

Mostly sunny

66° 💧 None 💨 10 mph H 79%30.30 inHg

2:00 PM

Mostly sunny

71° 💧 None 💨 9 mph H 62%30.27 inHg

5:00 PM

Sunny

72° 💧 None 💨 10 mph H 57%30.21 inHg

8:00 PM

Partly cloudy night

68° 💧 None 💨 9 mph H 75%30.18 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 13 mph H 77%30.18 inHg

Saturday

2:00 AM

Overcast night

63° 💧 None 💨 14 mph H 82%30.15 inHg

5:00 AM

Mostly cloudy night

62° 💧 None 💨 13 mph H 82%30.09 inHg

8:00 AM

Overcast

62° 💧 None 💨 17 mph H 84%30.03 inHg

11:00 AM

Heavy rain

64° 💧 None 💨 14 mph H 92%30.00 inHg

2:00 PM

Moderate rain

68° 💧 None 💨 8 mph H 93%29.94 inHg

5:00 PM

Moderate rain

73° 💧 None 💨 7 mph H 92%29.85 inHg

8:00 PM

Light rain

71° 💧 None 💨 5 mph H 95%29.83 inHg

11:00 PM

Heavy rain

70° 💧 None 💨 6 mph H 98%29.88 inHg

Sunday

2:00 AM

Light rain

68° 💧 None 💨 4 mph H 98%29.88 inHg

5:00 AM

Overcast night

63° 💧 None 💨 14 mph H 96%29.88 inHg

8:00 AM

Overcast

61° 💧 None 💨 15 mph H 94%29.94 inHg

11:00 AM

Overcast

63° 💧 None 💨 15 mph H 87%29.97 inHg

2:00 PM

Overcast

69° 💧 None 💨 15 mph H 76%29.97 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 12 mph H 90%29.88 inHg

Monday

2:00 AM

Mostly cloudy night

67° 💧 None 💨 13 mph H 92%29.91 inHg

8:00 AM

Light rain

63° 💧 None 💨 14 mph H 86%29.97 inHg

2:00 PM

Overcast

62° 💧 None 💨 14 mph H 78%30.03 inHg

8:00 PM

Partly cloudy night

68° 💧 None 💨 14 mph H 62%30.06 inHg

Tuesday

2:00 AM

Clear night

64° 💧 None 💨 11 mph H 69%30.09 inHg

8:00 AM

Sunny

56° 💧 None 💨 12 mph H 76%30.21 inHg

2:00 PM

Sunny

53° 💧 None 💨 10 mph H 91%30.27 inHg

8:00 PM

Mostly clear night

66° 💧 None 💨 10 mph H 59%30.30 inHg

Wednesday

2:00 AM

Partly cloudy night

64° 💧 None 💨 10 mph H 71%30.30 inHg

8:00 AM

Overcast

56° 💧 None 💨 11 mph H 86%30.36 inHg

2:00 PM

Overcast

54° 💧 None 💨 13 mph H 91%30.42 inHg

8:00 PM

Overcast night

68° 💧 None 💨 14 mph H 60%30.36 inHg

Thursday

2:00 AM

Overcast night

65° 💧 None 💨 11 mph H 73%30.33 inHg

8:00 AM

Mostly sunny

58° 💧 None 💨 12 mph H 75%30.36 inHg

2:00 PM

Sunny

56° 💧 None 💨 10 mph H 91%30.39 inHg

8:00 PM

Clear night

70° 💧 None 💨 8 mph H 60%30.36 inHg

Friday

2:00 AM

Clear night

66° 💧 None 💨 8 mph H 76%30.30 inHg

8:00 AM

Sunny

58° 💧 None 💨 10 mph H 88%30.33 inHg

2:00 PM

Sunny

56° 💧 None 💨 9 mph H 93%30.33 inHg

8:00 PM

Clear night

71° 💧 None 💨 6 mph H 56%30.30 inHg

Saturday

2:00 AM

Overcast night

69° 💧 None 💨 5 mph H 64%30.24 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 8 mph H 82%30.24 inHg

2:00 PM

Mostly cloudy

60° 💧 None 💨 7 mph H 94%30.24 inHg

8:00 PM

Partly cloudy night

73° 💧 None 💨 4 mph H 56%30.21 inHg

Sunday

2:00 AM

Mostly clear night

70° 💧 None 💨 6 mph H 77%30.12 inHg

8:00 AM

Overcast

65° 💧 None 💨 9 mph H 85%30.09 inHg

2:00 PM

Mostly sunny

63° 💧 None 💨 11 mph H 88%30.06 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 7 mph H 67%30.00 inHg

Monday

2:00 AM

Clear night

74° 💧 None 💨 9 mph H 76%29.88 inHg

8:00 AM

Mostly sunny

71° 💧 None 💨 13 mph H 82%29.88 inHg

2:00 PM

Partly cloudy

68° 💧 None 💨 11 mph H 91%29.88 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 11 mph H 78%29.88 inHg

Tuesday

2:00 AM

Clear night

72° 💧 None 💨 2 mph H 80%29.88 inHg

8:00 AM

Partly cloudy

66° 💧 None 💨 4 mph H 99%29.91 inHg

2:00 PM

Overcast

63° 💧 None 💨 4 mph H 100%29.97 inHg

In South Haven and, more broadly, across the state of Michigan: This evening will be characterized by mostly cloudy skies, with temperatures staying mild between 64 and 66 degrees Fahrenheit. Winds will be moderate, coming from the southeast at speeds up to 11 mph, occasionally gusting to 28 mph. No precipitation is expected during this time, so conditions should remain dry. The wind might cause some breeziness, but overall, it should be a comfortable evening with stable weather. The temperatures are unlikely to fluctuate significantly overnight, and clear skies are not forecasted. Residents can expect a relatively calm and mild night ahead.

15-Day Weather Outlook for South Haven

TomorrowTomorrow

Light thunderstorms 73°/66° 💧 None 💨 20 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 73°/67° 💧 None 💨 11 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 76°/68° 💧 2.428 in 💨 13 mph

Friday, Sep 18Fri Sep 18

Overcast 73°/61° 💧 None 💨 11 mph

Saturday, Sep 19Sat Sep 19

Light thunderstorms 79°/64° 💧 0.451 in 💨 20 mph

Sunday, Sep 20Sun Sep 20

Moderate rain 73°/67° 💧 0.315 in 💨 13 mph

Monday, Sep 21Mon Sep 21

Light rain 68°/62° 💧 0.015 in 💨 14 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 66°/53° 💧 0.000 in 💨 12 mph

Wednesday, Sep 23Wed Sep 23

Overcast 68°/54° 💧 None 💨 14 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 70°/56° 💧 None 💨 12 mph

Friday, Sep 25Fri Sep 25

Overcast 71°/56° 💧 None 💨 10 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 73°/60° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Overcast 75°/63° 💧 None 💨 11 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 73°/68° 💧 0.021 in 💨 13 mph

Tuesday, Sep 29Tue Sep 29

Overcast 66°/63° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in South Haven

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for South Haven

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 AM

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

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

O₃ Ozone Fair 85,6µg/m³

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

NO₂ Nitrogen dioxide Good 4,2µg/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 South Haven

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 6,0High —Unavailable

Tomorrow UV 5,8Moderate 😐Moderate

Wednesday UV 1,4Low 🙂Fair

Thursday UV 5,0Moderate 😐Moderate

Friday UV 5,0Moderate 🙂Fair

Saturday UV 7,0High —Unavailable

Sunday UV 4,0Moderate —Unavailable

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.

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 South Haven

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SOUTH HAVEN, MICHIGAN

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

81/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 9:32 PM–5:49 AM

☁ Cloud cover 27% Real hourly forecast for the best viewing hour.

☾ Moonlight 12% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 32° high at the best hour.

✦ Estimated visible meteors 1–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min51%

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.

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Forecast data for South Haven were last refreshed today at 11:30 PM. The current forecast period extends through 16/09/2026 at 9:00 PM. 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.