Monthly Historical AveragesMendham, NJ
Average Temperature
High
16°
Feels 15
Low
5°
Feels 3
Average Precipitation
9 Days
67.6mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
23°Feels 23
Wind
17 km/h W
Gust
26 km/h
Humidity
57%
P.O.P
80%
Rain
~5 mm
Night
8°Feels 4
Wind
22 km/h N
Gust
33 km/h
Humidity
93%
P.O.P
90%
Rain
~5 mm
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity