Monthly Historical AveragesPortsmouth, NH
Average Temperature
High
12°
Feels 10
Low
3°
Feels 0
Average Precipitation
11 Days
89.8mm
1.2cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, April 23, 2026
Day
13°Feels 11
Wind
24 km/h NW
Gust
36 km/h
Humidity
35%
P.O.P
40%
Rain
<1 mm
Night
2°Feels -2
Wind
19 km/h NW
Gust
29 km/h
Humidity
69%
P.O.P
20%
Historical AveragesApr 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity