Portsmouth 30-day weather forecast
Beyond about 10 days any forecast drifts towards the usual weather for the time of year, so read the outlook as what is typical for the date, not as a prediction for that day.
Portsmouth day-by-day calendar
- Days 1–16: daily forecast model
- Days 17–30: outlook (30-day statistical model), with the usual high / low for the date
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
66 NovTodayForecast  67° / 59° Rain 83% | 7Forecast 62° / 53° Rain 63% | |||||
8Forecast  54° / 45° Rain 66% | 9Forecast 55° / 44° Rain 8% | 10Forecast  55° / 39° Rain 3% | 11Forecast  55° / 41° Rain 5% | 12Forecast 46° / 32° Rain 5% | 13Forecast 42° / 30° Rain 13% | 14Forecast  40° / 31° Rain 14% |
15Forecast 41° / 31° Rain 13% | 16Forecast 47° / 30° Rain 3% | 17Forecast 53° / 34° Rain 16% | 18Forecast 52° / 42° Rain 16% | 19Forecast 52° / 45° Rain 14% | 20Forecast 55° / 42° Rain 0 in | 21Forecast 47° / 32° — |
22Outlook 54° / 36° Rain 0 in Usual 50° / 32°F | 23Outlook 61° / 53° Rain 1.5 in Usual 50° / 32°F | 24Outlook 53° / 38° Rain 0 in Usual 50° / 32°F | 25Outlook  45° / 36° — Usual 50° / 32°F | 26Outlook 45° / 34° — Usual 50° / 32°F | 27Outlook 47° / 38° Rain 0 in Usual 50° / 32°F | 28Outlook 47° / 44° Rain 0 in Usual 50° / 32°F |
29Outlook 47° / 45° Rain 0.6 in Usual 50° / 32°F | 30Outlook 59° / 46° Rain 1.1 in Usual 50° / 32°F | 1 DecOutlook 63° / 50° Rain 0.6 in Usual 39° / 25°F | 2Outlook 50° / 42° — Usual 39° / 25°F | 3Outlook 44° / 36° — Usual 39° / 25°F | 4Outlook 42° / 36° Rain 0 in Usual 39° / 25°F | 5Outlook 42° / 37° Rain 1.3 in Usual 39° / 25°F |
Portsmouth weather in November
November in Portsmouth: highs around 50°F (10°C), lows around 32°F (0°C) and about 2.3 in (58 mm) of rain.
November
- Average high
- 50°F
- Average low
- 32°F
- Precipitation
- 2.3 in
- Record high
- 76°F
- Record low
- 18°F
December
- Average high
- 39°F
- Average low
- 25°F
- Precipitation
- 2.9 in
- Record high
- 61°F
- Record low
- 4°F
Climate averages from historical daily data.
Portsmouth weather by month →Portsmouth 30-day forecast: your questions
What is the one month weather forecast for Portsmouth?
The 30-day view for Portsmouth starts with 15 days of forecast: highs from 30°F (-1°C) up to 67°F (20°C) on Friday, and rain likely on 5 of them (1.1 in (29.1 mm) in all). After that it shows the usual December weather: highs near 39°F (4°C), lows near 25°F (-4°C), about 2.9 in (74.4 mm) over the month. Day by day: Portsmouth 10-day forecast.
What will the weather be in Portsmouth next month?
In December, Portsmouth usually has highs around 39°F (4°C) and lows around 25°F (-4°C), with about 2.9 in (74.4 mm) of rain. The records are 61°F (16°C) and 4°F (-15°C). Month by month: Portsmouth weather by month.
Nearest cities: 30-day forecast
- Manchester34 mi
- Nashua42 mi
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