As of 23:14 EDT

Weather in South Haven, MI

63°Current weather

South Haven, Saturday, 8 August, 23:14

Clear. Feels like 64°. High 82°, low 62°.

Pressure30.00 inHg
Wind3.8 mph SW
Humidity97%
Visibility6.2 mi
Dew point62°

Monthly outlook for South Haven, MI: average high 74.2°, average low 62.7°. That is 1.5° below the climate normal for August. Precipitation is expected on 3 days (about 3.3 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 9 August (84.3°), the coolest 21 August (55.2°).

74.2°/62.7°
Average high / low
−1.5°
Below normal
3 / 6
Wet days / normal
3.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August75.8°77.1°-0.7°
18 August – 27 August71.5°76.7°-2.9°
28 August – 6 Septemberat normal75.4°

August records over 66 years

90.7°9 August 2025All-time high
46.8°29 August 2025All-time low
Sun, 0984° / 63°1.52Heavy rain
84 °Heavy rain

South Haven, Sunday, 9 August

Heavy rain. High 84°, low 63°.

Pressure29.97 inHg
Wind12.9 mph SW
Humidity49%
Visibility6.2 mi
Dew point59°
Mon, 1082° / 70°0.58Rain
82 °Rain

South Haven, Monday, 10 August

Rain. High 82°, low 70°.

Pressure29.94 inHg
Wind8.8 mph SW
Humidity90%
Visibility6.2 mi
Dew point71°
Tue, 1176° / 66°1.13Heavy rain
76 °Heavy rain

South Haven, Tuesday, 11 August

Heavy rain. High 76°, low 66°.

Pressure29.77 inHg
Wind1.7 mph SE
Humidity92%
Visibility6.2 mi
Dew point63°
Wed, 1274° / 66°0Overcast
74 °Overcast

South Haven, Wednesday, 12 August

Overcast. High 74°, low 66°.

Pressure29.83 inHg
Wind6.8 mph NW
Humidity78%
Visibility6.2 mi
Dew point65°
Thu, 1368° / 58°0Overcast
68 °Overcast

South Haven, Thursday, 13 August

Overcast. High 68°, low 58°.

Pressure30.03 inHg
Wind11.7 mph NE
Humidity54%
Visibility
Dew point50°
Fri, 1471° / 60°0Clear
71 °Clear

South Haven, Friday, 14 August

Clear. High 71°, low 60°.

Pressure30.12 inHg
Wind9.4 mph NW
Humidity68%
Visibility
Dew point59°
Sat, 1574° / 59°0Overcast
74 °Overcast

South Haven, Saturday, 15 August

Overcast. High 74°, low 59°.

Pressure30.27 inHg
Wind8.9 mph NE
Humidity49%
Visibility
Dew point52°
Sun, 1673° / 61°0Overcast
73 °Overcast

South Haven, Sunday, 16 August

Overcast. High 73°, low 61°.

Pressure30.12 inHg
Wind8 mph W
Humidity68%
Visibility
Dew point60°
Mon, 1773° / 66°0Mostly clear
73 °Mostly clear

South Haven, Monday, 17 August

Mostly clear. High 73°, low 66°.

Pressure30.06 inHg
Wind8.8 mph W
Humidity73%
Visibility
Dew point63°
Tue, 1877° / 65°0Overcast
77 °Overcast

South Haven, Tuesday, 18 August

Overcast. High 77°, low 65°.

Pressure29.97 inHg
Wind13.4 mph SW
Humidity76%
Visibility
Dew point66°
Wed, 1972° / 66°0.04Light rain
72 °Light rain

South Haven, Wednesday, 19 August

Light rain. High 72°, low 66°.

Pressure29.88 inHg
Wind23.2 mph N
Humidity78%
Visibility
Dew point61°
Thu, 2067° / 64°0.02Light rain
67 °Light rain

South Haven, Thursday, 20 August

Light rain. High 67°, low 64°.

Pressure30.03 inHg
Wind25.4 mph N
Humidity62%
Visibility
Dew point54°
Fri, 2169° / 55°0Clear
69 °Clear

South Haven, Friday, 21 August

Clear. High 69°, low 55°.

Pressure30.09 inHg
Wind10.2 mph NW
Humidity51%
Visibility
Dew point48°
Sat, 2268° / 57°0.03Light rain
68 °Light rain

South Haven, Saturday, 22 August

Light rain. High 68°, low 57°.

Pressure29.97 inHg
Wind17.9 mph SE
Humidity61%
Visibility
Dew point52°
Sun, 2375° / 67°0Partly cloudy
75 °Partly cloudy

South Haven, Sunday, 23 August

Partly cloudy. High 75°, low 67°.

Pressure29.88 inHg
Wind20.6 mph W
Humidity66%
Visibility
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 67°0.15Climate normal
77 °Climate normal

South Haven, Monday, 24 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.15 in
Chance of precipitation37%
Record high87° (2021)
Record low56° (2017)
Tue, 2577° / 67°0.11Climate normal
77 °Climate normal

South Haven, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (2024)
Record low51° (2017)
Wed, 2677° / 68°0.12Climate normal
77 °Climate normal

South Haven, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low68°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (2024)
Record low54° (2025)
Thu, 2777° / 68°0.14Climate normal
77 °Climate normal

South Haven, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high77°
Average low68°
Average precipitation0.14 in
Chance of precipitation42%
Record high90° (2024)
Record low52° (2025)
Fri, 2876° / 67°0.18Climate normal
76 °Climate normal

South Haven, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.18 in
Chance of precipitation37%
Record high90° (2021)
Record low53° (2023)
Sat, 2976° / 67°0.12Climate normal
76 °Climate normal

South Haven, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.12 in
Chance of precipitation38%
Record high86° (2021)
Record low47° (2025)
Sun, 3076° / 67°0.07Climate normal
76 °Climate normal

South Haven, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.07 in
Chance of precipitation22%
Record high85° (2010)
Record low48° (2025)
Mon, 3176° / 65°0.09Climate normal
76 °Climate normal

South Haven, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low65°
Average precipitation0.09 in
Chance of precipitation22%
Record high84° (1973)
Record low50° (2025)
Tue, 0176° / 66°0.13Climate normal
76 °Climate normal

South Haven, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low66°
Average precipitation0.13 in
Chance of precipitation30%
Record high86° (2011)
Record low51° (2017)
Wed, 0276° / 66°0.07Climate normal
76 °Climate normal

South Haven, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high76°
Average low66°
Average precipitation0.07 in
Chance of precipitation28%
Record high85° (2008)
Record low49° (2017)
Thu, 0375° / 66°0.08Climate normal
75 °Climate normal

South Haven, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.08 in
Chance of precipitation27%
Record high86° (1973)
Record low54° (2024)
Fri, 0474° / 65°0.08Climate normal
74 °Climate normal

South Haven, Friday, 4 September

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.08 in
Chance of precipitation32%
Record high87° (2018)
Record low51° (2025)
Sat, 0574° / 65°0.09Climate normal
74 °Climate normal

South Haven, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.09 in
Chance of precipitation22%
Record high89° (2023)
Record low51° (2019)
Sun, 0674° / 65°0.1Climate normal
74 °Climate normal

South Haven, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.1 in
Chance of precipitation38%
Record high85° (1960)
Record low51° (2017)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for South Haven, MI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in South Haven, MI since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.