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As of 16:18 EDT

Weather in Williamstown, MA

81°Current weather

Williamstown, Saturday, 8 August, 16:18

Partly cloudy. Feels like 84°. High 81°, low 67°.

Pressure29.88 inHg
Wind2 mph W
Humidity74%
Visibility6.2 mi
Dew point72°
Sun, 0979° / 63°0Clear
79 °Clear

Williamstown, Sunday, 9 August

Clear. High 79°, low 63°.

Pressure29.97 inHg
Wind12.1 mph NW
Humidity55%
Visibility6.2 mi
Dew point61°
Mon, 1083° / 60°0.06Light rain
83 °Light rain

Williamstown, Monday, 10 August

Light rain. High 83°, low 60°.

Pressure29.97 inHg
Wind5.5 mph SW
Humidity58%
Visibility6.2 mi
Dew point58°
Tue, 1181° / 65°0Overcast
81 °Overcast

Williamstown, Tuesday, 11 August

Overcast. High 81°, low 65°.

Pressure29.88 inHg
Wind12.3 mph NW
Humidity54%
Visibility6.2 mi
Dew point58°
Wed, 1275° / 62°0.31Rain
75 °Rain

Williamstown, Wednesday, 12 August

Rain. High 75°, low 62°.

Pressure29.77 inHg
Wind1.9 mph E
Humidity91%
Visibility6.2 mi
Dew point63°
Thu, 1372° / 54°0.16Light rain
72 °Light rain

Williamstown, Thursday, 13 August

Light rain. High 72°, low 54°.

Pressure29.74 inHg
Wind13.6 mph W
Humidity72%
Visibility—
Dew point61°
Fri, 1469° / 48°0Clear
69 °Clear

Williamstown, Friday, 14 August

Clear. High 69°, low 48°.

Pressure29.94 inHg
Wind11.2 mph NW
Humidity53%
Visibility—
Dew point43°
Sat, 1569° / 46°0Clear
69 °Clear

Williamstown, Saturday, 15 August

Clear. High 69°, low 46°.

Pressure30.15 inHg
Wind10 mph NW
Humidity51%
Visibility—
Dew point42°
Sun, 1671° / 49°0Overcast
71 °Overcast

Williamstown, Sunday, 16 August

Overcast. High 71°, low 49°.

Pressure30.30 inHg
Wind7.4 mph NW
Humidity42%
Visibility—
Dew point42°
Mon, 1772° / 53°0Overcast
72 °Overcast

Williamstown, Monday, 17 August

Overcast. High 72°, low 53°.

Pressure30.18 inHg
Wind7.3 mph S
Humidity45%
Visibility—
Dew point47°
Tue, 1875° / 60°0.13Light rain
75 °Light rain

Williamstown, Tuesday, 18 August

Light rain. High 75°, low 60°.

Pressure29.97 inHg
Wind6.7 mph SW
Humidity86%
Visibility—
Dew point62°
Wed, 1975° / 57°0Overcast
75 °Overcast

Williamstown, Wednesday, 19 August

Overcast. High 75°, low 57°.

Pressure29.88 inHg
Wind9 mph NW
Humidity70%
Visibility—
Dew point57°
Thu, 2077° / 53°0Partly cloudy
77 °Partly cloudy

Williamstown, Thursday, 20 August

Partly cloudy. High 77°, low 53°.

Pressure30.00 inHg
Wind7.1 mph W
Humidity47%
Visibility—
Dew point49°
Fri, 2172° / 57°0.77Rain
72 °Rain

Williamstown, Friday, 21 August

Rain. High 72°, low 57°.

Pressure29.97 inHg
Wind10.1 mph S
Humidity67%
Visibility—
Dew point58°
Sat, 2274° / 58°0.06Light rain
74 °Light rain

Williamstown, Saturday, 22 August

Light rain. High 74°, low 58°.

Pressure29.80 inHg
Wind11.2 mph NW
Humidity91%
Visibility—
Dew point62°
Sun, 2365° / 48°0.09Light rain
65 °Light rain

Williamstown, Sunday, 23 August

Light rain. High 65°, low 48°.

Pressure29.88 inHg
Wind16.3 mph NW
Humidity65%
Visibility—
Dew point43°

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 Williamstown, 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 Williamstown, 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.