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 →
Sat · Today
Sunny
34°
21°
0.27 in
⌄
Wind 11 mph N
Gusts 17 mph
UV index 8 – High
Precip chance 65% · 0.27 in
Sunrise 7:04 AM
Sunset 7:56 PM
Sun · Tomorrow
Sunny
28°
16°
0.01 in
⌄
Wind 9 mph NE
Gusts 25 mph
UV index 8 – High
Precip chance 36% · 0.01 in
Sunrise 7:05 AM
Sunset 7:55 PM
Monday 7/9
Sunny
30°
15°
9%
⌄
Wind 9 mph E
Gusts 21 mph
UV index 7 – High
Precip chance 9%
Sunrise 7:06 AM
Sunset 7:53 PM
Tuesday 8/9
Partly cloudy
31°
19°
10%
⌄
Wind 6 mph S
Gusts 15 mph
UV index 7 – High
Precip chance 10%
Sunrise 7:07 AM
Sunset 7:51 PM
Wednesday 9/9
Sunny
34°
21°
5%
⌄
Wind 12 mph SW
Gusts 27 mph
UV index 8 – Very high
Precip chance 5%
Sunrise 7:08 AM
Sunset 7:50 PM
Thursday 10/9
Mostly cloudy
29°
17°
9%
⌄
Wind 9 mph NW
Gusts 23 mph
UV index 6 – High
Precip chance 9%
Sunrise 7:09 AM
Sunset 7:48 PM
Friday 11/9
Mostly cloudy
26°
14°
10%
⌄
Wind 6 mph NE
Gusts 13 mph
UV index 7 – High
Precip chance 10%
Sunrise 7:10 AM
Sunset 7:47 PM
Saturday 12/9
Mostly cloudy
28°
12°
7%
⌄
Wind 5 mph E
Gusts 11 mph
UV index 7 – High
Precip chance 7%
Sunrise 7:10 AM
Sunset 7:45 PM
Sunday 13/9
Partly cloudy
33°
18°
6%
⌄
Wind 7 mph SW
Gusts 15 mph
UV index 8 – Very high
Precip chance 6%
Sunrise 7:11 AM
Sunset 7:44 PM
Monday 14/9
Sunny
34°
22°
3%
⌄
Wind 3 mph S
Gusts 11 mph
UV index 8 – Very high
Precip chance 3%
Sunrise 7:12 AM
Sunset 7:42 PM
Tuesday 15/9
Sunny
34°
23°
4%
⌄
Wind 6 mph E
Gusts 8 mph
UV index 8 – Very high
Precip chance 4%
Sunrise 7:13 AM
Sunset 7:40 PM
Wednesday 16/9
Sunny
33°
22°
3%
⌄
Wind 5 mph SE
Gusts 8 mph
UV index 8 – Very high
Precip chance 3%
Sunrise 7:14 AM
Sunset 7:39 PM
Thursday 17/9
Sunny
33°
20°
0.23 in
⌄
Wind 6 mph NW
Gusts 18 mph
UV index 8 – Very high
Precip chance 62% · 0.23 in
Sunrise 7:15 AM
Sunset 7:37 PM
Friday 18/9
Sunny
24°
13°
0.00 in
⌄
Wind 11 mph N
Gusts 23 mph
UV index 6 – High
Precip chance 17% · 0.00 in
Sunrise 7:16 AM
Sunset 7:36 PM
10-day outlook for Portsmouth
Over the next ten days Portsmouth peaks at 34° on Saturday and bottoms out at 12° on Saturday. Day-to-day swings stay modest — no big pattern change inside the period. Add it up and about 0.28 in of precipitation falls over the period, spread across 2 unsettled days, with Saturday the most likely (65%).