10-day forecast · Portsmouth
Day-by-day outlook up to 14 days: highs, lows, precipitation totals, wind and UV. Planning further ahead? Open the 30-day outlook →
Mon · Today
Sunny
35°
22°
6%
⌄
Wind 5 mph SW
Gusts 15 mph
UV index 8 – Very high
Precip chance 6%
Sunrise 7:00 AM
Sunset 8:04 PM
Tue · Tomorrow
Sunny
36°
22°
2%
⌄
Wind 7 mph W
Gusts 21 mph
UV index 8 – Very high
Precip chance 2%
Sunrise 7:01 AM
Sunset 8:02 PM
Wednesday 2/9
Sunny
37°
23°
0.09 in
⌄
Wind 6 mph S
Gusts 18 mph
UV index 8 – Very high
Precip chance 57% · 0.09 in
Sunrise 7:02 AM
Sunset 8:01 PM
Thursday 3/9
Sunny
38°
23°
0.59 in
⌄
Wind 8 mph S
Gusts 19 mph
UV index 8 – Very high
Precip chance 67% · 0.59 in
Sunrise 7:02 AM
Sunset 7:59 PM
Friday 4/9
Sunny
37°
22°
0.27 in
⌄
Wind 8 mph S
Gusts 19 mph
UV index 8 – Very high
Precip chance 66% · 0.27 in
Sunrise 7:03 AM
Sunset 7:58 PM
Saturday 5/9
Fog
33°
22°
0.06 in
⌄
Wind 8 mph NW
Gusts 14 mph
UV index 7 – High
Precip chance 59% · 0.06 in
Sunrise 7:04 AM
Sunset 7:56 PM
Sunday 6/9
Fog
26°
19°
0.01 in
⌄
Wind 5 mph N
Gusts 20 mph
UV index 6 – High
Precip chance 39% · 0.01 in
Sunrise 7:05 AM
Sunset 7:55 PM
Monday 7/9
Mostly cloudy
28°
15°
12%
⌄
Wind 5 mph NE
Gusts 14 mph
UV index 7 – High
Precip chance 12%
Sunrise 7:06 AM
Sunset 7:53 PM
Tuesday 8/9
Mostly cloudy
29°
19°
16%
⌄
Wind 7 mph W
Gusts 23 mph
UV index 6 – High
Precip chance 16%
Sunrise 7:07 AM
Sunset 7:51 PM
Wednesday 9/9
Sunny
32°
19°
9%
⌄
Wind 11 mph NW
Gusts 31 mph
UV index 8 – Very high
Precip chance 9%
Sunrise 7:08 AM
Sunset 7:50 PM
Thursday 10/9
Sunny
27°
15°
10%
⌄
Wind 7 mph NE
Gusts 17 mph
UV index 7 – High
Precip chance 10%
Sunrise 7:09 AM
Sunset 7:48 PM
Friday 11/9
Sunny
28°
15°
7%
⌄
Wind 6 mph NE
Gusts 13 mph
UV index 7 – High
Precip chance 7%
Sunrise 7:10 AM
Sunset 7:47 PM
Saturday 12/9
Sunny
30°
17°
5%
⌄
Wind 4 mph NE
Gusts 6 mph
UV index 8 – Very high
Precip chance 5%
Sunrise 7:10 AM
Sunset 7:45 PM
Sunday 13/9
Sunny
33°
18°
3%
⌄
Wind 3 mph NW
Gusts 7 mph
UV index 8 – Very high
Precip chance 3%
Sunrise 7:11 AM
Sunset 7:44 PM
10-day outlook for Portsmouth
Over the next ten days Portsmouth peaks at 38° on Thursday and bottoms out at 15° on Monday. The back half cools off by roughly 11°, so the warmest days are the ones in front of you. Add it up and about 1.0 in of precipitation falls over the period, spread across 5 unsettled days, with Thursday the most likely (67%).