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As of 19:44 EDT

Weather in Williamstown, NJ

80°Current weather

Williamstown, Saturday, 8 August, 19:44

Partly cloudy. Feels like 84°. High 87°, low 72°.

Pressure29.94 inHg
Wind3 mph W
Humidity76%
Visibility6.2 mi
Dew point72°
Sun, 0990° / 72°0Overcast
90 °Overcast

Williamstown, Sunday, 9 August

Overcast. High 90°, low 72°.

Pressure30.00 inHg
Wind8.2 mph W
Humidity44%
Visibility6.2 mi
Dew point66°
Mon, 1095° / 75°0.04Light rain
95 °Light rain

Williamstown, Monday, 10 August

Light rain. High 95°, low 75°.

Pressure30.00 inHg
Wind7.9 mph W
Humidity46%
Visibility6.2 mi
Dew point69°
Tue, 1191° / 72°0.06Light rain
91 °Light rain

Williamstown, Tuesday, 11 August

Light rain. High 91°, low 72°.

Pressure29.91 inHg
Wind4.9 mph W
Humidity49%
Visibility6.2 mi
Dew point67°
Wed, 1283° / 72°0.28Rain
83 °Rain

Williamstown, Wednesday, 12 August

Rain. High 83°, low 72°.

Pressure29.80 inHg
Wind9.5 mph W
Humidity61%
Visibility6.2 mi
Dew point66°
Thu, 1389° / 71°0.02Light rain
89 °Light rain

Williamstown, Thursday, 13 August

Light rain. High 89°, low 71°.

Pressure29.77 inHg
Wind12.2 mph W
Humidity40%
Visibility—
Dew point60°
Fri, 1478° / 67°0Light rain
78 °Light rain

Williamstown, Friday, 14 August

Light rain. High 78°, low 67°.

Pressure29.94 inHg
Wind8.1 mph NW
Humidity36%
Visibility—
Dew point47°
Sat, 1579° / 62°0Clear
79 °Clear

Williamstown, Saturday, 15 August

Clear. High 79°, low 62°.

Pressure30.15 inHg
Wind10.8 mph N
Humidity30%
Visibility—
Dew point42°
Sun, 1684° / 62°0Clear
84 °Clear

Williamstown, Sunday, 16 August

Clear. High 84°, low 62°.

Pressure30.27 inHg
Wind8.7 mph SE
Humidity29%
Visibility—
Dew point46°
Mon, 1783° / 63°0Overcast
83 °Overcast

Williamstown, Monday, 17 August

Overcast. High 83°, low 63°.

Pressure30.15 inHg
Wind10 mph S
Humidity44%
Visibility—
Dew point56°
Tue, 1878° / 71°0.03Light rain
78 °Light rain

Williamstown, Tuesday, 18 August

Light rain. High 78°, low 71°.

Pressure29.97 inHg
Wind11.2 mph SW
Humidity82%
Visibility—
Dew point68°
Wed, 1988° / 70°0Clear
88 °Clear

Williamstown, Wednesday, 19 August

Clear. High 88°, low 70°.

Pressure29.85 inHg
Wind9.3 mph N
Humidity36%
Visibility—
Dew point56°
Thu, 2075° / 67°0Overcast
75 °Overcast

Williamstown, Thursday, 20 August

Overcast. High 75°, low 67°.

Pressure29.97 inHg
Wind6.1 mph N
Humidity56%
Visibility—
Dew point56°
Fri, 2177° / 66°0.2Light rain
77 °Light rain

Williamstown, Friday, 21 August

Light rain. High 77°, low 66°.

Pressure29.88 inHg
Wind10 mph S
Humidity73%
Visibility—
Dew point67°
Sat, 2284° / 67°0.22Rain
84 °Rain

Williamstown, Saturday, 22 August

Rain. High 84°, low 67°.

Pressure29.74 inHg
Wind11.1 mph NW
Humidity54%
Visibility—
Dew point63°
Sun, 2375° / 63°0Partly cloudy
75 °Partly cloudy

Williamstown, Sunday, 23 August

Partly cloudy. High 75°, low 63°.

Pressure30.00 inHg
Wind15.1 mph NW
Humidity28%
Visibility—
Dew point37°

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, NJ 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, NJ 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.