Monthly Historical AveragesPortsmouth, NH
Average Temperature
High
12°
Feels 11
Low
3°
Feels 0
Average Precipitation
11 Days
90mm
1.3cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, April 9, 2026
Day
10°Feels 7
Wind
25 km/h S
Gust
38 km/h
Humidity
40%
P.O.P
10%
Night
2°Feels -2
Wind
24 km/h SW
Gust
36 km/h
Humidity
80%
P.O.P
10%
Historical AveragesApr 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity