What is today's weather forecast for Williamstown, NJ?

Today's forecast for Williamstown shows a high of 50 degrees and a low of 39 degrees Fahrenheit. Mostly cloudy, with a high near 50.

What is the 7-day weather forecast for Williamstown, NJ?

The 7-day forecast for Williamstown shows highs from 50 to 63 degrees and lows from 29 to 47 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in Williamstown, NJ this week?

Yes, rain is possible in Williamstown this week. Precipitation chances: Friday (70% chance), Saturday (30% chance), Tuesday (60% chance), Wednesday (30% chance).

How accurate is the Williamstown weather forecast?

WeatherForYou provides highly accurate Williamstown forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Williamstown, NJ Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

41°F
Feels Like 41°F

Humidity 85% Dew Point 37°F Wind Calm Barometer 30.17 in.766.3 mm

Solar Rad 221 w/m²

Report from a MADIS/MESONET weather station 3.8 miles NNW of central Williamstown
at 9:30 AM Thu, Nov 20, 2025

Point Forecast at a Glance

ThuNov 20

FriNov 21

20%

SatNov 22

30%

SunNov 23

MonNov 24

TueNov 25

30%

WedNov 26

30%

7-Day Temperature Trend

Week Ahead Summary

Warming trend through the week with high temperatures climbing from 50°F to 63°F. Unsettled weather expected with rain likely on at least 4 days.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 56°F and lows around 37°F.

This Date in Weather History

1979 - A blizzard struck Cheyenne, WY, producing a record 19.8 inches of snow in 24 hours, and a record total of 25.6 inches in forty hours. Strong winds created huge drifts stopping all transportation.

Williamstown, NJ 7 Day Weather Forecast Details

Thursday Nov 20

Day: Mostly cloudy, with a high near 50. Calm wind.

Night: Mostly cloudy, with a low around 39. Calm wind.

Friday Nov 21

Day: A slight chance of rain after 1pm. Mostly cloudy, with a high near 56. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.

Night: Rain likely. Cloudy, with a low around 45. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Nov 22

Day: A chance of rain before 1pm. Partly sunny, with a high near 53. North wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Night: Mostly clear, with a low around 29.

Sunday Nov 23

Day: Sunny, with a high near 50.

Night: Partly cloudy, with a low around 36.

Monday Nov 24

Day: Mostly sunny, with a high near 55.

Night: Mostly cloudy, with a low around 37.

Tuesday Nov 25

Day: A chance of rain. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.

Night: Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

Wednesday Nov 26

Day: A chance of rain. Partly sunny, with a high near 63. Chance of precipitation is 30%.

About Williamstown, NJ

Williamstown is an unincorporated community and census-designated place (CDP) located in Monroe Township in Gloucester County, in the U.S. state of New Jersey. As of the 2010 U.S. census, Williamstown's population was 15,567.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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