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As of 19:06 EDT

Weather in Harwich, MA

79°Current weather

Harwich, Saturday, 8 August, 19:06

Clear. Feels like 79°. High 88°, low 72°.

Pressure29.85 inHg
Wind6 mph SW
Humidity85%
Visibility6.2 mi
Dew point73°
Sun, 0993° / 72°0Clear
93 °Clear

Harwich, Sunday, 9 August

Clear. High 93°, low 72°.

Pressure29.91 inHg
Wind5.1 mph W
Humidity60%
Visibility6.2 mi
Dew point67°
Mon, 1083° / 70°0.01Light rain
83 °Light rain

Harwich, Monday, 10 August

Light rain. High 83°, low 70°.

Pressure29.97 inHg
Wind8.1 mph S
Humidity56%
Visibility6.2 mi
Dew point63°
Tue, 1181° / 74°0Overcast
81 °Overcast

Harwich, Tuesday, 11 August

Overcast. High 81°, low 74°.

Pressure29.80 inHg
Wind9.6 mph W
Humidity53%
Visibility6.2 mi
Dew point63°
Wed, 1273° / 64°0.15Light rain
73 °Light rain

Harwich, Wednesday, 12 August

Light rain. High 73°, low 64°.

Pressure29.74 inHg
Wind18.8 mph E
Humidity86%
Visibility6.2 mi
Dew point62°
Thu, 1379° / 62°0.09Light rain
79 °Light rain

Harwich, Thursday, 13 August

Light rain. High 79°, low 62°.

Pressure29.74 inHg
Wind16.2 mph NW
Humidity73%
Visibility—
Dew point64°
Fri, 1473° / 62°0Overcast
73 °Overcast

Harwich, Friday, 14 August

Overcast. High 73°, low 62°.

Pressure29.91 inHg
Wind13.1 mph SW
Humidity54%
Visibility—
Dew point49°
Sat, 1569° / 65°0Clear
69 °Clear

Harwich, Saturday, 15 August

Clear. High 69°, low 65°.

Pressure30.09 inHg
Wind12.4 mph NW
Humidity67%
Visibility—
Dew point56°
Sun, 1671° / 66°0.02Light rain
71 °Light rain

Harwich, Sunday, 16 August

Light rain. High 71°, low 66°.

Pressure30.27 inHg
Wind8.9 mph SW
Humidity54%
Visibility—
Dew point52°
Mon, 1776° / 65°0Overcast
76 °Overcast

Harwich, Monday, 17 August

Overcast. High 76°, low 65°.

Pressure30.24 inHg
Wind15.1 mph S
Humidity49%
Visibility—
Dew point54°
Tue, 1876° / 70°0.53Rain
76 °Rain

Harwich, Tuesday, 18 August

Rain. High 76°, low 70°.

Pressure30.06 inHg
Wind18.6 mph S
Humidity64%
Visibility—
Dew point62°
Wed, 1972° / 67°0.3Rain
72 °Rain

Harwich, Wednesday, 19 August

Rain. High 72°, low 67°.

Pressure29.83 inHg
Wind12.3 mph SW
Humidity83%
Visibility—
Dew point66°
Thu, 2071° / 65°0Overcast
71 °Overcast

Harwich, Thursday, 20 August

Overcast. High 71°, low 65°.

Pressure29.97 inHg
Wind9.9 mph NE
Humidity72%
Visibility—
Dew point61°
Fri, 2172° / 65°0.35Rain
72 °Rain

Harwich, Friday, 21 August

Rain. High 72°, low 65°.

Pressure30.03 inHg
Wind16 mph SE
Humidity55%
Visibility—
Dew point54°
Sat, 2275° / 68°0.89Rain
75 °Rain

Harwich, Saturday, 22 August

Rain. High 75°, low 68°.

Pressure29.80 inHg
Wind14.6 mph SE
Humidity91%
Visibility—
Dew point67°
Sun, 2370° / 64°0Partly cloudy
70 °Partly cloudy

Harwich, Sunday, 23 August

Partly cloudy. High 70°, low 64°.

Pressure29.80 inHg
Wind18.4 mph NW
Humidity54%
Visibility—
Dew point50°

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 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 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.