Weather in South Haven, MI
South Haven, Sunday, 9 August, 03:15
Clear. Feels like 58°. High 83°, low 58°.
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°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 75.7° | 76.9° | -0.7° |
| 19 August – 28 August | 82° | 76.6° | +3° |
| 29 August – 7 September | at normal | 75.1° | — |
August records over 66 years
0.61
South Haven, Monday, 10 August
Heavy rain. High 86°, low 70°.
1.61South Haven, Tuesday, 11 August
Heavy rain. High 78°, low 66°.
0
South Haven, Wednesday, 12 August
Overcast. High 75°, low 67°.
0South Haven, Thursday, 13 August
Overcast. High 68°, low 61°.
0
South Haven, Friday, 14 August
Partly cloudy. High 70°, low 57°.
0South Haven, Saturday, 15 August
Overcast. High 75°, low 58°.
0.09South Haven, Sunday, 16 August
Light rain. High 73°, low 62°.
0
South Haven, Monday, 17 August
Mostly clear. High 74°, low 66°.
0South Haven, Tuesday, 18 August
Overcast. High 74°, low 61°.
0.08South Haven, Wednesday, 19 August
Light rain. High 82°, low 67°.
0South Haven, Thursday, 20 August
Overcast. High 82°, low 73°.
0
South Haven, Friday, 21 August
Clear. High 81°, low 70°.
0South Haven, Saturday, 22 August
Mostly clear. High 86°, low 67°.
0.01South Haven, Sunday, 23 August
Light rain. High 82°, low 70°.
0.03South Haven, Monday, 24 August
Light rain. High 79°, low 66°.
0.11South Haven, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.12South Haven, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.14
South Haven, Thursday, 27 August
Climate normal for this date — 60-year average.
0.18South Haven, Friday, 28 August
Climate normal for this date — 60-year average.
0.12South Haven, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07South Haven, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09South Haven, Monday, 31 August
Climate normal for this date — 60-year average.
0.13South Haven, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07South Haven, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08South Haven, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08South Haven, Friday, 4 September
Climate normal for this date — 60-year average.
0.09South Haven, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1South Haven, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1South Haven, Monday, 7 September
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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