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Weather Portsmouth
New Hampshire · United States
Tue, 04/21
10:40 AM EDT
Weather Portsmouth
now
42°
90 Min. Weather
sunny
05:51 AM
07:32 PM
11:00 AM
43
°
10 %
12:00 PM
44
°
10 %
01:00 PM
44
°
10 %
02:00 PM
45
°
10 %
03:00 PM
45
°
20 %
04:00 PM
43
°
20 %
05:00 PM
43
°
20 %
06:00 PM
41
°
10 %
07:00 PM
40
°
10 %
08:00 PM
39
°
10 %
09:00 PM
38
°
10 %
10:00 PM
38
°
10 %
11:00 PM
37
°
10 %
12:00 AM
37
°
10 %
01:00 AM
37
°
10 %
02:00 AM
37
°
20 %
03:00 AM
37
°
30 %
04:00 AM
37
°
40 %
05:00 AM
37
°
50 %
06:00 AM
38
°
40 %
07:00 AM
38
°
30 %
08:00 AM
39
°
30 %
09:00 AM
40
°
40 %
10:00 AM
41
°
50 %
11:00 AM
42
°
50 %
12:00 PM
43
°
30 %
01:00 PM
44
°
30 %
02:00 PM
46
°
20 %
03:00 PM
46
°
20 %
04:00 PM
47
°
20 %
05:00 PM
47
°
20 %
06:00 PM
47
°
20 %
07:00 PM
47
°
20 %
08:00 PM
46
°
20 %
09:00 PM
46
°
20 %
10:00 PM
44
°
20 %
11:00 PM
43
°
20 %
12:00 AM
43
°
30 %
01:00 AM
43
°
30 %
02:00 AM
42
°
40 %
03:00 AM
42
°
60 %
04:00 AM
41
°
50 %
05:00 AM
42
°
40 %
06:00 AM
41
°
40 %
07:00 AM
42
°
50 %
08:00 AM
43
°
60 %
09:00 AM
48
°
40 %
10:00 AM
53
°
40 %
11:00 AM
55
°
50 %
Cooler-than-average temperatures expected today.
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WeatherRadar
Forecast
Map
Morning
39
°
10 %
Afternoon
45
°
20 %
Evening
38
°
10 %
Night
37
°
50 %
Morning
40
°
50 %
Afternoon
47
°
30 %
Evening
46
°
30 %
Night
41
°
60 %
Morning
48
°
60 %
Afternoon
58
°
30 %
Evening
46
°
20 %
Night
36
°
10 %
Morning
46
°
20 %
Afternoon
51
°
20 %
Evening
45
°
20 %
Night
37
°
20 %
Morning
44
°
10 %
Afternoon
49
°
10 %
Evening
42
°
5 %
Night
36
°
10 %
Morning
48
°
10 %
Afternoon
56
°
10 %
Evening
44
°
20 %
Night
42
°
20 %
Morning
46
°
20 %
Afternoon
57
°
20 %
Evening
44
°
20 %
Night
40
°
20 %
Morning
46
°
20 %
Afternoon
54
°
40 %
Evening
44
°
40 %
Night
44
°
70 %
Morning
46
°
70 %
Afternoon
58
°
60 %
Evening
46
°
40 %
Night
42
°
30 %
Morning
48
°
20 %
Afternoon
57
°
20 %
Evening
47
°
20 %
Night
43
°
20 %
Morning
52
°
20 %
Afternoon
65
°
20 %
Evening
52
°
20 %
Night
47
°
40 %
Morning
54
°
40 %
Afternoon
63
°
40 %
Evening
53
°
50 %
Night
50
°
60 %
Morning
54
°
60 %
Afternoon
63
°
40 %
Evening
50
°
20 %
Night
44
°
20 %
Morning
49
°
20 %
Afternoon
60
°
20 %
Evening
50
°
20 %
Night
42
°
20 %
today
Tuesday, 04/21
04/21
45
°
28
°
10 h
20 %
tomorrow
Wednesday, 04/22
04/22
47
°
37
°
0 h
50 %
Thursday
Thursday, 04/23
04/23
58
°
41
°
6 h
60 %
Friday
Friday, 04/24
04/24
51
°
36
°
7 h
20 %
Saturday
Saturday, 04/25
04/25
49
°
37
°
12 h
10 %
Sunday
Sunday, 04/26
04/26
56
°
36
°
7 h
10 %
Monday
Monday, 04/27
04/27
57
°
42
°
2 h
20 %
Tuesday
Tuesday, 04/28
04/28
54
°
40
°
3 h
40 %
Wednesday
Wednesday, 04/29
04/29
58
°
44
°
0 h
70 %
Thursday
Thursday, 04/30
04/30
57
°
42
°
2 h
20 %
Friday
Friday, 05/01
05/01
65
°
43
°
7 h
20 %
Saturday
Saturday, 05/02
05/02
63
°
47
°
0 h
40 %
Sunday
Sunday, 05/03
05/03
63
°
50
°
1 h
60 %
Monday
Monday, 05/04
05/04
60
°
44
°
5 h
20 %
Top News
Breezy, low humidity
Dry air increases fire threat in SE
WindRadar
14 day weather
Tu
28
45
We
37
47
Th
41
58
Fr
36
51
Sa
37
49
Su
36
56
Mo
42
57
Tu
40
54
We
44
58
Th
42
57
Fr
43
65
Sa
47
63
Su
50
63
Mo
44
60
Max (°F)
Min (°F)
more
less
TemperatureRadar
UV Index
today
5
moderate
6-Day UVI Forecast
Mountain and skiing conditions
Current mountain weather
Marine Weather
today
tomorrow
Water 44° / Air 45°
Waves 3 ft /
gusts up to 30 mph
Fort Point
High tide 02:24 AM / 03:13 PM
Low tide 08:50 AM / 09:02 PM
Water 44° / Air 47°
Waves 2.5 ft /
gusts up to 24 mph
Fort Point
High tide 03:22 AM / 04:15 PM
Low tide 09:50 AM / 10:04 PM
Current regional conditions
Pease AirForceBase/Portsmouth (101ft)
Tue, 04/21, 09:55 AM
41°
mostly clear
Wind SW 6 mph
Skyhaven Arpt Rochester (321ft)
Tue, 04/21, 09:51 AM
42.8°
fair
Wind 0 mph
Sanford Muni Airport (242ft)
Tue, 04/21, 09:56 AM
39.2°
mostly clear
Wind 0 mph
Lawrence Muni Airport (147ft)
Tue, 04/21, 09:54 AM
41°
fair
Wind NW 11 mph
Gusts 17 mph
Past weather
Weather Station Pease AirForceBase/Portsmouth
Maximum Temperature [°F] 03/25/2026 to 04/21/2026
RainRadar
Air quality
right now
Poss. Unhealthy
6-Day Air Quality Forecast
Astro info
today
10:40 AM local time
Sun
05:51 AM
07:32 PM
13h 41min
Moon
08:33 AM
12:13 AM
Waxing crescent
News
Eastern U.S.
Record cold kicks off the week
More news
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