Extended 10-day forecasts, Portsmouth (NH)
Hourly detail for the next 48 hours, six-hourly segments for the rest of the week.
This is the 10-day extended forecast for Portsmouth, the United States of America. The forecast is updated every three hours and displays the temperature, weather conditions, wind direction and speed, as well as the chance of precipitation.
Check out our September climate page to see if the current temperatures in Portsmouth is typical for this time of year.
Today · Tuesday 1 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 15:00 |
Light rain
|
18°C (64°F) | 0.1 mm (0 in) | 96% | E 5 m/s (10 knots) |
| 16:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 95% | E 4 m/s (8 knots) |
| 17:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 95% | E 3 m/s (6 knots) |
| 18:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 95% | E 3 m/s (6 knots) |
| 19:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 96% | E 3 m/s (6 knots) |
| 20:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 96% | E 2 m/s (4 knots) |
| 21:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 95% | E 3 m/s (6 knots) |
| 22:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 94% | E 2 m/s (4 knots) |
| 23:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 95% | NE 3 m/s (6 knots) |
15:00
Light rain
96% · E 5 m/s (10 knots)
18°C (64°F)
0.1 mm (0 in)
16:00
Cloudy
95% · E 4 m/s (8 knots)
18°C (64°F)
0 mm (0 in)
17:00
Cloudy
95% · E 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
18:00
Cloudy
95% · E 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
19:00
Cloudy
96% · E 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
20:00
Cloudy
96% · E 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
21:00
Cloudy
95% · E 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
22:00
Cloudy
94% · E 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
23:00
Cloudy
95% · NE 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
Tomorrow · Wednesday 2 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 00:00 |
Partly cloudy
|
17°C (63°F) | 0 mm (0 in) | 97% | NE 3 m/s (6 knots) |
| 01:00 |
Cloudy
|
17°C (63°F) | 0 mm (0 in) | 97% | NE 2 m/s (4 knots) |
| 02:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 97% | NE 2 m/s (4 knots) |
| 03:00 |
Partly cloudy
|
17°C (63°F) | 0 mm (0 in) | 98% | NE 3 m/s (6 knots) |
| 04:00 |
Fog
|
17°C (63°F) | 0 mm (0 in) | 99% | NE 4 m/s (8 knots) |
| 05:00 |
Fog
|
17°C (63°F) | 0 mm (0 in) | 99% | NE 4 m/s (8 knots) |
| 06:00 |
Fog
|
17°C (63°F) | 0 mm (0 in) | 98% | NE 5 m/s (10 knots) |
| 07:00 |
Fog
|
17°C (63°F) | 0 mm (0 in) | 98% | NE 5 m/s (10 knots) |
| 08:00 |
Partly cloudy
|
18°C (64°F) | 0 mm (0 in) | 91% | E 5 m/s (10 knots) |
| 09:00 |
Cloudy
|
19°C (66°F) | 0 mm (0 in) | 84% | NE 4 m/s (8 knots) |
| 10:00 |
Partly cloudy
|
20°C (68°F) | 0 mm (0 in) | 75% | E 5 m/s (10 knots) |
| 11:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 66% | E 5 m/s (10 knots) |
| 12:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 63% | E 5 m/s (10 knots) |
| 13:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 62% | E 5 m/s (10 knots) |
| 14:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 62% | E 5 m/s (10 knots) |
| 15:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 63% | E 4 m/s (8 knots) |
| 16:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 66% | SE 3 m/s (6 knots) |
| 17:00 |
Partly cloudy
|
20°C (68°F) | 0 mm (0 in) | 70% | SE 3 m/s (6 knots) |
| 18:00 |
Partly cloudy
|
19°C (66°F) | 0 mm (0 in) | 77% | SE 3 m/s (6 knots) |
| 19:00 |
Cloudy
|
18°C (64°F) | 0 mm (0 in) | 87% | SE 3 m/s (6 knots) |
| 20:00 |
Cloudy
|
17°C (63°F) | 0 mm (0 in) | 95% | SE 3 m/s (6 knots) |
| 21:00 |
Cloudy
|
17°C (63°F) | 0 mm (0 in) | 95% | SE 4 m/s (8 knots) |
| 22:00 |
Cloudy
|
17°C (63°F) | 0 mm (0 in) | 94% | SE 3 m/s (6 knots) |
| 23:00 |
Cloudy
|
17°C (63°F) | 0 mm (0 in) | 92% | SE 3 m/s (6 knots) |
00:00
Partly cloudy
97% · NE 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
01:00
Cloudy
97% · NE 2 m/s (4 knots)
17°C (63°F)
0 mm (0 in)
02:00
Cloudy
97% · NE 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
03:00
Partly cloudy
98% · NE 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
04:00
Fog
99% · NE 4 m/s (8 knots)
17°C (63°F)
0 mm (0 in)
05:00
Fog
99% · NE 4 m/s (8 knots)
17°C (63°F)
0 mm (0 in)
06:00
Fog
98% · NE 5 m/s (10 knots)
17°C (63°F)
0 mm (0 in)
07:00
Fog
98% · NE 5 m/s (10 knots)
17°C (63°F)
0 mm (0 in)
08:00
Partly cloudy
91% · E 5 m/s (10 knots)
18°C (64°F)
0 mm (0 in)
09:00
Cloudy
84% · NE 4 m/s (8 knots)
19°C (66°F)
0 mm (0 in)
10:00
Partly cloudy
75% · E 5 m/s (10 knots)
20°C (68°F)
0 mm (0 in)
11:00
Partly cloudy
66% · E 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
12:00
Partly cloudy
63% · E 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
13:00
Partly cloudy
62% · E 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
14:00
Partly cloudy
62% · E 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
15:00
Partly cloudy
63% · E 4 m/s (8 knots)
21°C (70°F)
0 mm (0 in)
16:00
Partly cloudy
66% · SE 3 m/s (6 knots)
21°C (70°F)
0 mm (0 in)
17:00
Partly cloudy
70% · SE 3 m/s (6 knots)
20°C (68°F)
0 mm (0 in)
18:00
Partly cloudy
77% · SE 3 m/s (6 knots)
19°C (66°F)
0 mm (0 in)
19:00
Cloudy
87% · SE 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
20:00
Cloudy
95% · SE 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
21:00
Cloudy
95% · SE 4 m/s (8 knots)
17°C (63°F)
0 mm (0 in)
22:00
Cloudy
94% · SE 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
23:00
Cloudy
92% · SE 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
Next 7 days
Six-hour segments
Day
Night
02:00
Morning
08:00
Afternoon
14:00
Evening
20:00
Thursday
3 Sep
18°C (64°F)
9.7 mm (0.4 in)
Heavy rain
80% · SE 5 m/s (10 knots)
18°C (64°F)
16 mm (0.6 in)
Heavy rain
97% · SE 4 m/s (8 knots)
20°C (68°F)
1.2 mm (0.05 in)
Rain
96% · S 6 m/s (12 knots)
20°C (68°F)
0.4 mm (0.02 in)
Fog
99% · W 4 m/s (8 knots)
Thu
3 Sep
night
18°C (64°F)
9.7 mm (0.4 in)
Heavy rain
80%
5 m/s (10 knots)
morning
18°C (64°F)
16 mm (0.6 in)
Heavy rain
97%
4 m/s (8 knots)
afternoon
20°C (68°F)
1.2 mm (0.05 in)
Rain
96%
6 m/s (12 knots)
evening
20°C (68°F)
0.4 mm (0.02 in)
Fog
99%
4 m/s (8 knots)
Friday
4 Sep
18°C (64°F)
0 mm (0 in)
Partly cloudy
100% · NW 2 m/s (4 knots)
19°C (66°F)
0.3 mm (0.01 in)
Mostly sunny
98% · NW 3 m/s (6 knots)
27°C (81°F)
0 mm (0 in)
Clear skies
51% · NW 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
Clear skies
73% · NW 3 m/s (6 knots)
Fri
4 Sep
night
18°C (64°F)
0 mm (0 in)
Partly cloudy
100%
2 m/s (4 knots)
morning
19°C (66°F)
0.3 mm (0.01 in)
Mostly sunny
98%
3 m/s (6 knots)
afternoon
27°C (81°F)
0 mm (0 in)
Clear skies
51%
5 m/s (10 knots)
evening
21°C (70°F)
0 mm (0 in)
Clear skies
73%
3 m/s (6 knots)
Saturday
5 Sep
18°C (64°F)
0 mm (0 in)
Clear skies
85% · NW 3 m/s (6 knots)
19°C (66°F)
1.2 mm (0.05 in)
Rain showers
82% · NW 3 m/s (6 knots)
22°C (72°F)
1.5 mm (0.1 in)
Rain showers
64% · NE 5 m/s (10 knots)
18°C (64°F)
0 mm (0 in)
Mostly clear
85% · E ()
Sat
5 Sep
night
18°C (64°F)
0 mm (0 in)
Clear skies
85%
3 m/s (6 knots)
morning
19°C (66°F)
1.2 mm (0.05 in)
Rain showers
82%
3 m/s (6 knots)
afternoon
22°C (72°F)
1.5 mm (0.1 in)
Rain showers
64%
5 m/s (10 knots)
evening
18°C (64°F)
0 mm (0 in)
Mostly clear
85%
()
Sunday
6 Sep
14°C (57°F)
0 mm (0 in)
Clear skies
94% · N 2 m/s (4 knots)
16°C (61°F)
0 mm (0 in)
Clear skies
84% · N 2 m/s (4 knots)
21°C (70°F)
0 mm (0 in)
Partly cloudy
54% · SE 2 m/s (4 knots)
16°C (61°F)
0 mm (0 in)
Clear skies
80% · S 3 m/s (6 knots)
Sun
6 Sep
night
14°C (57°F)
0 mm (0 in)
Clear skies
94%
2 m/s (4 knots)
morning
16°C (61°F)
0 mm (0 in)
Clear skies
84%
2 m/s (4 knots)
afternoon
21°C (70°F)
0 mm (0 in)
Partly cloudy
54%
2 m/s (4 knots)
evening
16°C (61°F)
0 mm (0 in)
Clear skies
80%
3 m/s (6 knots)
Monday
7 Sep
15°C (59°F)
0 mm (0 in)
Clear skies
94% · SW 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
Clear skies
89% · W 2 m/s (4 knots)
27°C (81°F)
0.8 mm (0.03 in)
Light rain showers
46% · W 4 m/s (8 knots)
20°C (68°F)
0.5 mm (0.02 in)
Light rain showers
89% · W 4 m/s (8 knots)
Mon
7 Sep
night
15°C (59°F)
0 mm (0 in)
Clear skies
94%
3 m/s (6 knots)
morning
17°C (63°F)
0 mm (0 in)
Clear skies
89%
2 m/s (4 knots)
afternoon
27°C (81°F)
0.8 mm (0.03 in)
Light rain showers
46%
4 m/s (8 knots)
evening
20°C (68°F)
0.5 mm (0.02 in)
Light rain showers
89%
4 m/s (8 knots)
Tuesday
8 Sep
17°C (63°F)
0 mm (0 in)
Partly cloudy
97% · N 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
Clear skies
80% · N 2 m/s (4 knots)
20°C (68°F)
0 mm (0 in)
Clear skies
55% · S 3 m/s (6 knots)
16°C (61°F)
0 mm (0 in)
Cloudy
87% · SE 2 m/s (4 knots)
Tue
8 Sep
night
17°C (63°F)
0 mm (0 in)
Partly cloudy
97%
2 m/s (4 knots)
morning
15°C (59°F)
0 mm (0 in)
Clear skies
80%
2 m/s (4 knots)
afternoon
20°C (68°F)
0 mm (0 in)
Clear skies
55%
3 m/s (6 knots)
evening
16°C (61°F)
0 mm (0 in)
Cloudy
87%
2 m/s (4 knots)
Wednesday
9 Sep
14°C (57°F)
0 mm (0 in)
Cloudy
99% · N 1 m/s (2 knots)
15°C (59°F)
1.3 mm (0.1 in)
Rain
86% · N 2 m/s (4 knots)
19°C (66°F)
0.1 mm (0 in)
Cloudy
89% · E 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
Cloudy
94% · NE 2 m/s (4 knots)
Wed
9 Sep
night
14°C (57°F)
0 mm (0 in)
Cloudy
99%
1 m/s (2 knots)
morning
15°C (59°F)
1.3 mm (0.1 in)
Rain
86%
2 m/s (4 knots)
afternoon
19°C (66°F)
0.1 mm (0 in)
Cloudy
89%
2 m/s (4 knots)
evening
18°C (64°F)
0 mm (0 in)
Cloudy
94%
2 m/s (4 knots)
Data from MET Norway.
Prefer the quick-glance version? See the 10-day summary.
Portsmouth weather by month
Browse monthly averages for Portsmouth: climate by month with temperature, rainfall and sunshine.
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