Weather in South Harwich, MA
South Harwich, Sunday, 9 August, 18:43
Clear. Feels like 90°. High 89°, low 70°.
0
South Harwich, Monday, 10 August
Mostly clear. High 87°, low 70°.
0.05
South Harwich, Tuesday, 11 August
Light rain. High 80°, low 71°.
0.1South Harwich, Wednesday, 12 August
Light rain. High 77°, low 70°.
0.09South Harwich, Thursday, 13 August
Light rain. High 79°, low 69°.
0South Harwich, Friday, 14 August
Mostly clear. High 72°, low 67°.
0
South Harwich, Saturday, 15 August
Overcast. High 70°, low 66°.
0.15South Harwich, Sunday, 16 August
Rain. High 74°, low 67°.
0.15South Harwich, Monday, 17 August
Rain. High 74°, low 66°.
0South Harwich, Tuesday, 18 August
Overcast. High 77°, low 65°.
0.48South Harwich, Wednesday, 19 August
Rain. High 75°, low 71°.
0
South Harwich, Thursday, 20 August
Partly cloudy. High 72°, low 68°.
0.07South Harwich, Friday, 21 August
Light rain. High 76°, low 71°.
0South Harwich, Saturday, 22 August
Overcast. High 71°, low 65°.
0South Harwich, Sunday, 23 August
Clear. High 73°, low 65°.
0.01South Harwich, Monday, 24 August
Light rain. High 77°, low 68°.
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 Harwich, MA 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 Harwich, MA 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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