Monthly Historical AveragesMahwah, NJ
Average Temperature
High
22°
Feels 22
Low
10°
Feels 10
Average Precipitation
12 Days
79.5mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, May 18, 2026
Day
32°Feels 32
Wind
19 km/h S
Gust
42 km/h
Humidity
38%
P.O.P
40%
Rain
<1 mm
Night
22°Feels 22
Wind
16 km/h SW
Gust
34 km/h
Humidity
69%
P.O.P
10%
Historical AveragesMay 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity