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As of 14:12 EDT

Weather in Williamstown, PA

83°Current weather

Williamstown, Saturday, 8 August, 14:12

Overcast. Feels like 91°. High 83°, low 68°.

Pressure30.03 inHg
Wind4 mph SW
Humidity75%
Visibility6.2 mi
Dew point74°
Sun, 0984° / 68°0.04Light rain
84 °Light rain

Williamstown, Sunday, 9 August

Light rain. High 84°, low 68°.

Pressure30.00 inHg
Wind7.5 mph NW
Humidity51%
Visibility6.2 mi
Dew point64°
Mon, 1083° / 63°0.02Light rain
83 °Light rain

Williamstown, Monday, 10 August

Light rain. High 83°, low 63°.

Pressure30.03 inHg
Wind5.1 mph W
Humidity63%
Visibility6.2 mi
Dew point63°
Tue, 1188° / 67°0.23Light rain
88 °Light rain

Williamstown, Tuesday, 11 August

Light rain. High 88°, low 67°.

Pressure29.94 inHg
Wind7.7 mph NW
Humidity64%
Visibility6.2 mi
Dew point66°
Wed, 1278° / 66°0.01Light rain
78 °Light rain

Williamstown, Wednesday, 12 August

Light rain. High 78°, low 66°.

Pressure29.80 inHg
Wind8.6 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 65°0.1Light rain
86 °Light rain

Williamstown, Thursday, 13 August

Light rain. High 86°, low 65°.

Pressure29.77 inHg
Wind8.5 mph W
Humidity45%
Visibility—
Dew point60°
Fri, 1475° / 57°0.01Light rain
75 °Light rain

Williamstown, Friday, 14 August

Light rain. High 75°, low 57°.

Pressure30.00 inHg
Wind11.4 mph NW
Humidity41%
Visibility—
Dew point47°
Sat, 1577° / 52°0Clear
77 °Clear

Williamstown, Saturday, 15 August

Clear. High 77°, low 52°.

Pressure30.12 inHg
Wind7.4 mph NW
Humidity36%
Visibility—
Dew point44°
Sun, 1680° / 56°0Partly cloudy
80 °Partly cloudy

Williamstown, Sunday, 16 August

Partly cloudy. High 80°, low 56°.

Pressure30.12 inHg
Wind7.6 mph W
Humidity40%
Visibility—
Dew point51°
Mon, 1762° / 54°0.03Light rain
62 °Light rain

Williamstown, Monday, 17 August

Light rain. High 62°, low 54°.

Pressure30.24 inHg
Wind5.3 mph N
Humidity81%
Visibility—
Dew point52°
Tue, 1862° / 55°0.18Light rain
62 °Light rain

Williamstown, Tuesday, 18 August

Light rain. High 62°, low 55°.

Pressure30.09 inHg
Wind12.1 mph E
Humidity97%
Visibility—
Dew point59°
Wed, 1981° / 62°0.13Light rain
81 °Light rain

Williamstown, Wednesday, 19 August

Light rain. High 81°, low 62°.

Pressure29.85 inHg
Wind6.9 mph W
Humidity55%
Visibility—
Dew point61°
Thu, 2065° / 53°0.16Light rain
65 °Light rain

Williamstown, Thursday, 20 August

Light rain. High 65°, low 53°.

Pressure29.97 inHg
Wind11.1 mph N
Humidity94%
Visibility—
Dew point56°
Fri, 2169° / 43°0Clear
69 °Clear

Williamstown, Friday, 21 August

Clear. High 69°, low 43°.

Pressure30.06 inHg
Wind11.6 mph N
Humidity35%
Visibility—
Dew point37°
Sat, 2271° / 47°0Overcast
71 °Overcast

Williamstown, Saturday, 22 August

Overcast. High 71°, low 47°.

Pressure30.06 inHg
Wind4 mph W
Humidity37%
Visibility—
Dew point41°
Sun, 2375° / 50°0.21Rain
75 °Rain

Williamstown, Sunday, 23 August

Rain. High 75°, low 50°.

Pressure30.06 inHg
Wind9.8 mph W
Humidity34%
Visibility—
Dew point42°

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, PA 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, PA 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.