Hourly Weather Forecast - Mercerville, NJ

12 AM
38°F
20%
0mph
SSW
Foggy
Humidity
99%
Feels like
38°F
Dew Point
38°F
1 AM
38°F
20%
1mph
S
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
38°F
2 AM
38°F
20%
1mph
S
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
38°F
3 AM
39°F
30%
1mph
S
30% Chance of Light Rain
Humidity
98%
Feels like
39°F
Dew Point
38°F
4 AM
39°F
30%
1mph
S
30% Chance of Light Rain
Humidity
97%
Feels like
39°F
Dew Point
39°F
5 AM
40°F
30%
1mph
S
30% Chance of Light Rain
Humidity
98%
Feels like
40°F
Dew Point
39°F
6 AM
41°F
30%
2mph
SSW
30% Chance of Light Rain
Humidity
97%
Feels like
41°F
Dew Point
40°F
7 AM
42°F
40%
2mph
SSW
40% Chance of Light Rain
Humidity
98%
Feels like
42°F
Dew Point
42°F
7:19 AM
8 AM
44°F
50%
2mph
SW
50% Chance of Light Rain
Humidity
94%
Feels like
44°F
Dew Point
42°F
9 AM
45°F
50%
4mph
SW
50% Chance of Light Rain
Humidity
95%
Feels like
44°F
Dew Point
44°F
10 AM
47°F
60%
4mph
SW
60% Chance of Light Rain
Humidity
93%
Feels like
45°F
Dew Point
45°F
11 AM
48°F
60%
5mph
SW
60% Chance of Light Rain
Humidity
93%
Feels like
46°F
Dew Point
46°F
12 PM
49°F
60%
5mph
WSW
60% Chance of Rain
Humidity
92%
Feels like
47°F
Dew Point
47°F
1 PM
49°F
60%
6mph
WSW
60% Chance of Light Rain
Humidity
90%
Feels like
47°F
Dew Point
46°F
2 PM
49°F
50%
6mph
WSW
50% Chance of Light Rain
Humidity
89%
Feels like
46°F
Dew Point
46°F
3 PM
48°F
50%
6mph
W
50% Chance of Light Rain
Humidity
87%
Feels like
46°F
Dew Point
45°F
4 PM
47°F
40%
6mph
WNW
40% Chance of Light Rain
Humidity
88%
Feels like
44°F
Dew Point
44°F
4:38 PM
5 PM
46°F
30%
6mph
WNW
30% Chance of Light Rain
Humidity
89%
Feels like
43°F
Dew Point
43°F
6 PM
46°F
20%
6mph
NW
Mostly Cloudy
Humidity
85%
Feels like
43°F
Dew Point
42°F
7 PM
46°F
20%
5mph
NW
Mostly Cloudy
Humidity
82%
Feels like
43°F
Dew Point
40°F
8 PM
45°F
20%
6mph
NW
Mostly Cloudy
Humidity
80%
Feels like
42°F
Dew Point
39°F
9 PM
43°F
20%
6mph
NNW
Mostly Cloudy
Humidity
80%
Feels like
39°F
Dew Point
37°F
10 PM
41°F
10%
6mph
NNW
Mostly Cloudy
Humidity
80%
Feels like
37°F
Dew Point
36°F
11 PM
39°F
30%
6mph
NNW
30% Chance Snow Showers
Humidity
79%
Feels like
35°F
Dew Point
33°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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