Hourly Weather Forecast - Portsmouth, NH

1 AM
36°F
0%
9mph
WNW
Clear
Humidity
71%
Feels like
29°F
Dew Point
27°F
2 AM
34°F
0%
8mph
WNW
Clear
Humidity
72%
Feels like
28°F
Dew Point
26°F
3 AM
33°F
0%
7mph
W
Clear
Humidity
74%
Feels like
26°F
Dew Point
25°F
4 AM
31°F
0%
5mph
W
Clear
Humidity
76%
Feels like
25°F
Dew Point
24°F
5 AM
29°F
0%
5mph
W
Clear
Humidity
80%
Feels like
24°F
Dew Point
24°F
6 AM
29°F
0%
4mph
WSW
Mostly Clear
Humidity
83%
Feels like
24°F
Dew Point
24°F
7 AM
29°F
0%
4mph
SW
Mostly Clear
Humidity
85%
Feels like
25°F
Dew Point
25°F
7:09 AM
8 AM
31°F
0%
4mph
SW
Mostly Sunny
Humidity
84%
Feels like
28°F
Dew Point
27°F
9 AM
34°F
0%
4mph
SSW
Mostly Sunny
Humidity
81%
Feels like
31°F
Dew Point
29°F
10 AM
37°F
0%
4mph
SSW
Sunny
Humidity
77%
Feels like
35°F
Dew Point
31°F
11 AM
40°F
0%
4mph
SSW
Sunny
Humidity
71%
Feels like
36°F
Dew Point
31°F
12 PM
41°F
0%
6mph
S
Mostly Sunny
Humidity
69%
Feels like
37°F
Dew Point
32°F
1 PM
42°F
0%
7mph
S
Partly Cloudy
Humidity
67%
Feels like
38°F
Dew Point
32°F
2 PM
42°F
0%
7mph
S
Partly Cloudy
Humidity
69%
Feels like
37°F
Dew Point
33°F
3 PM
40°F
0%
8mph
S
Mostly Sunny
Humidity
74%
Feels like
35°F
Dew Point
33°F
4 PM
39°F
0%
8mph
S
Sunny
Humidity
80%
Feels like
33°F
Dew Point
33°F
4:09 PM
5 PM
38°F
0%
8mph
S
Mostly Clear
Humidity
84%
Feels like
32°F
Dew Point
33°F
6 PM
37°F
0%
8mph
S
Partly Cloudy
Humidity
86%
Feels like
32°F
Dew Point
34°F
7 PM
38°F
0%
7mph
S
Partly Cloudy
Humidity
89%
Feels like
32°F
Dew Point
35°F
8 PM
38°F
0%
7mph
S
Mostly Cloudy
Humidity
90%
Feels like
33°F
Dew Point
36°F
9 PM
39°F
0%
6mph
S
Mostly Cloudy
Humidity
93%
Feels like
34°F
Dew Point
37°F
10 PM
39°F
30%
6mph
S
30% Chance Rain Showers
Humidity
94%
Feels like
35°F
Dew Point
38°F
11 PM
40°F
30%
6mph
S
30% Chance Rain Showers
Humidity
95%
Feels like
36°F
Dew Point
38°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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