Hourly Weather Forecast - Williamstown, NJ

12 AM
31°F
10%
3mph
SW
Mostly Cloudy
Humidity
69%
Feels like
27°F
Dew Point
22°F
1 AM
31°F
30%
3mph
SW
30% Chance of Snow
Humidity
70%
Feels like
28°F
Dew Point
22°F
2 AM
31°F
30%
3mph
SSW
30% Chance of Snow
Humidity
70%
Feels like
28°F
Dew Point
23°F
3 AM
32°F
30%
3mph
SSW
30% Chance of Snow
Humidity
71%
Feels like
28°F
Dew Point
23°F
4 AM
32°F
30%
4mph
S
30% Chance Frozen Mix
Humidity
71%
Feels like
28°F
Dew Point
24°F
5 AM
33°F
40%
5mph
S
40% Chance Frozen Mix
Humidity
71%
Feels like
29°F
Dew Point
25°F
6 AM
34°F
40%
6mph
S
40% Chance of Light Rain
Humidity
73%
Feels like
29°F
Dew Point
26°F
7 AM
36°F
40%
6mph
S
40% Chance of Light Rain
Humidity
73%
Feels like
31°F
Dew Point
28°F
7:18 AM
8 AM
38°F
40%
6mph
S
40% Chance of Light Rain
Humidity
73%
Feels like
33°F
Dew Point
30°F
9 AM
40°F
40%
6mph
S
40% Chance of Light Rain
Humidity
72%
Feels like
36°F
Dew Point
32°F
10 AM
41°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
73%
Feels like
37°F
Dew Point
33°F
11 AM
42°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
74%
Feels like
37°F
Dew Point
34°F
12 PM
42°F
20%
7mph
SW
Cloudy
Humidity
76%
Feels like
37°F
Dew Point
35°F
1 PM
42°F
10%
7mph
SW
Cloudy
Humidity
76%
Feels like
37°F
Dew Point
35°F
2 PM
41°F
10%
7mph
SW
Cloudy
Humidity
77%
Feels like
37°F
Dew Point
35°F
3 PM
41°F
0%
6mph
SW
Cloudy
Humidity
79%
Feels like
37°F
Dew Point
35°F
4 PM
40°F
0%
6mph
WSW
Cloudy
Humidity
81%
Feels like
36°F
Dew Point
35°F
4:39 PM
5 PM
40°F
0%
5mph
WSW
Cloudy
Humidity
83%
Feels like
36°F
Dew Point
35°F
6 PM
39°F
0%
5mph
WSW
Cloudy
Humidity
84%
Feels like
36°F
Dew Point
35°F
7 PM
40°F
30%
5mph
WSW
30% Chance of Light Rain
Humidity
83%
Feels like
36°F
Dew Point
35°F
8 PM
41°F
30%
6mph
WSW
30% Chance of Light Rain
Humidity
82%
Feels like
37°F
Dew Point
36°F
9 PM
42°F
30%
7mph
W
30% Chance of Light Rain
Humidity
81%
Feels like
38°F
Dew Point
37°F
10 PM
43°F
30%
7mph
W
30% Chance of Light Rain
Humidity
81%
Feels like
38°F
Dew Point
37°F
11 PM
43°F
30%
8mph
W
30% Chance of Light Rain
Humidity
82%
Feels like
38°F
Dew Point
38°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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