As of 03:15 EDT

Weather in South Haven, MI

58°Current weather

South Haven, Sunday, 9 August, 03:15

Clear. Feels like 58°. High 83°, low 58°.

Pressure30.00 inHg
Wind6.2 mph S
Humidity100%
Visibility6.2 mi
Dew point58°

Monthly outlook for South Haven, MI: average high 78°, average low 64.9°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 2.7 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 22 August (86.4°), the coolest 14 August (57.2°).

78°/64.9°
Average high / low
+0.7°
Above normal
5 / 6
Wet days / normal
2.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August75.7°76.9°-0.7°
19 August – 28 August82°76.6°+3°
29 August – 7 Septemberat normal75.1°

August records over 66 years

90.7°9 August 2025All-time high
46.8°29 August 2025All-time low
Mon, 1086° / 70°0.61Heavy rain
86 °Heavy rain

South Haven, Monday, 10 August

Heavy rain. High 86°, low 70°.

Pressure29.91 inHg
Wind8.8 mph W
Humidity87%
Visibility6.2 mi
Dew point72°
Tue, 1178° / 66°1.61Heavy rain
78 °Heavy rain

South Haven, Tuesday, 11 August

Heavy rain. High 78°, low 66°.

Pressure29.85 inHg
Wind10.7 mph S
Humidity73%
Visibility6.2 mi
Dew point69°
Wed, 1275° / 67°0Overcast
75 °Overcast

South Haven, Wednesday, 12 August

Overcast. High 75°, low 67°.

Pressure29.83 inHg
Wind9.1 mph NW
Humidity75%
Visibility6.2 mi
Dew point66°
Thu, 1368° / 61°0Overcast
68 °Overcast

South Haven, Thursday, 13 August

Overcast. High 68°, low 61°.

Pressure30.03 inHg
Wind14.6 mph NW
Humidity56%
Visibility
Dew point51°
Fri, 1470° / 57°0Partly cloudy
70 °Partly cloudy

South Haven, Friday, 14 August

Partly cloudy. High 70°, low 57°.

Pressure30.18 inHg
Wind12.7 mph N
Humidity53%
Visibility
Dew point51°
Sat, 1575° / 58°0Overcast
75 °Overcast

South Haven, Saturday, 15 August

Overcast. High 75°, low 58°.

Pressure30.27 inHg
Wind12 mph NE
Humidity54%
Visibility
Dew point55°
Sun, 1673° / 62°0.09Light rain
73 °Light rain

South Haven, Sunday, 16 August

Light rain. High 73°, low 62°.

Pressure30.12 inHg
Wind11.4 mph SE
Humidity59%
Visibility
Dew point56°
Mon, 1774° / 66°0Mostly clear
74 °Mostly clear

South Haven, Monday, 17 August

Mostly clear. High 74°, low 66°.

Pressure30.09 inHg
Wind11.2 mph NW
Humidity67%
Visibility
Dew point61°
Tue, 1874° / 61°0Overcast
74 °Overcast

South Haven, Tuesday, 18 August

Overcast. High 74°, low 61°.

Pressure30.06 inHg
Wind6.9 mph W
Humidity69%
Visibility
Dew point58°
Wed, 1982° / 67°0.08Light rain
82 °Light rain

South Haven, Wednesday, 19 August

Light rain. High 82°, low 67°.

Pressure29.94 inHg
Wind15.9 mph S
Humidity87%
Visibility
Dew point68°
Thu, 2082° / 73°0Overcast
82 °Overcast

South Haven, Thursday, 20 August

Overcast. High 82°, low 73°.

Pressure29.80 inHg
Wind12.3 mph SE
Humidity67%
Visibility
Dew point69°
Fri, 2181° / 70°0Clear
81 °Clear

South Haven, Friday, 21 August

Clear. High 81°, low 70°.

Pressure29.91 inHg
Wind15.3 mph N
Humidity59%
Visibility
Dew point64°
Sat, 2286° / 67°0Mostly clear
86 °Mostly clear

South Haven, Saturday, 22 August

Mostly clear. High 86°, low 67°.

Pressure29.91 inHg
Wind13 mph SE
Humidity58%
Visibility
Dew point67°
Sun, 2382° / 70°0.01Light rain
82 °Light rain

South Haven, Sunday, 23 August

Light rain. High 82°, low 70°.

Pressure29.83 inHg
Wind13.4 mph S
Humidity68%
Visibility
Dew point69°
Mon, 2479° / 66°0.03Light rain
79 °Light rain

South Haven, Monday, 24 August

Light rain. High 79°, low 66°.

Pressure30.03 inHg
Wind15 mph E
Humidity73%
Visibility
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0774° / 65°0.1Climate normal
74 °Climate normal

South Haven, Monday, 7 September

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.1 in
Chance of precipitation32%
Record high87° (1960)
Record low48° (2025)

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.