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Weather in Williamstown, New Jersey, USA

Now
21 °F

Passing clouds.


Feels Like: 13 °F
Forecast: 39 / 8 °F
Wind: 6 mph from South

Location: Philadelphia International Airport
Current Time: Jan 21, 2026 at 9:40:49 am
Latest Report: Jan 21, 2026 at 8:54 am
Visibility: 10 mi
Pressure: 30.56 "Hg
Humidity: 52%
Dew Point: 6 °F
Location of WilliamstownLocation

Upcoming 5 hours

Now10:00 am11:00 am12:00 pm1:00 pm2:00 pm
21 °F23 °F29 °F33 °F35 °F37 °F

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Forecast for the next 48 hours

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 WednesdayThursday
 MorningAfternoonEveningNightMorningAfternoonEvening
Forecast
Temperature17 °F38 °F36 °F38 °F38 °F45 °F32 °F
Sunny.Scatt­erred clouds.Sprin­kles. Overcast.Sprin­kles. Mostly cloudy.Scatt­erred clouds.Overcast.Overcast.
Feels Like9 °F31 °F28 °F30 °F32 °F40 °F25 °F
Wind Speed5 mph12 mph13 mph12 mph10 mph11 mph7 mph
Wind DirectionS
S
SSW
SW
SW
W
WNW
Humidity49%42%56%63%67%48%59%
Dew Point1 °F17 °F22 °F26 °F28 °F27 °F19 °F
Visibility7 mi9 mi6 mi4 mi7 mi7 mi7 mi
Probability of Precipitation0%0%10%22%0%4%1%
Amount of Rain0.00"0.00"0.01"0.01"0.00"0.00"0.00"
Amount of Snow0.00"0.00"0.00"0.00"0.00"0.00"0.00"
* Updated Wednesday, January 21, 2026 2:42:40 am Williamstown time - Weather by CustomWeather, © 2026

14 day forecast, day-by-dayHour-by-hour forecast for next week

Yesterday's weather

Clear. 28 / 18 °F
Humidity: 37%. Wind: 12 mph from West

More weather last week

Currently at nearby stations

12 °F

South Jersey Regional Airport: (19 mi)

Sunny.

19 °F

Millville Municipal Airport: (22 mi)

Sunny.

9 °F

Atlantic City Atlantic City International Airport: (26 mi)

Clear. (2 hours ago)

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Forecast for the next 2 weeks

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SunMonTueWedThuFriSat
18
19
20

View historic weather

5
6
7

Detailed forecast for 14 days