Weather information for the Portsmouth area is provided below. Average temperatures, climate details and current forecasts are included!
Climate
Monthly average temperatures and precipitation for Portsmouth are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34° | 36° | 44° | 55° | 66° | 76° | 81° | 78° | 71° | 61° | 48° | 37° |
| Avg. Low | 14° | 15° | 24° | 34° | 42° | 51° | 57° | 55° | 47° | 37° | 30° | 18° |
| Daily Avg | 24° | 26° | 35° | 44° | 55° | 64° | 68° | 68° | 60° | 50° | 40° | 28° |
| Avg. Precip. | 3.8 in | 3.7 in | 3.8 in | 4.3 in | 3.5 in | 3.4 in | 3.3 in | 3.1 in | 3.4 in | 4.0 in | 5.1 in | 4.6 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
Live weather is currently unavailable.
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This Afternoon
Mostly Cloudy
Tonight
Slight Chance Rain Showers then Mostly Cloudy
Friday
Mostly Sunny
Friday Night
Mostly Clear
Saturday
Mostly Sunny
Saturday Night
Partly Cloudy
Detailed Forecast |
|
|---|---|
| This Afternoon | Mostly cloudy, with a high near 55. South wind around 5 mph. |
| Tonight | A slight chance of rain showers before 10pm. Mostly cloudy, with a low around 28. West wind 5 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday | Mostly sunny, with a high near 38. West wind 15 to 25 mph, with gusts as high as 45 mph. |
| Friday Night | Mostly clear, with a low around 27. West wind 10 to 15 mph, with gusts as high as 30 mph. |
| Saturday | Mostly sunny, with a high near 36. West wind 10 to 15 mph, with gusts as high as 30 mph. |
| Saturday Night | Partly cloudy, with a low around 23. |
| Sunday | Sunny, with a high near 40. |
| Sunday Night | Partly cloudy, with a low around 25. |
| Monday | A slight chance of snow showers between 8am and 11am, then a slight chance of rain and snow showers between 11am and 2pm. Partly sunny, with a high near 45. |
| Monday Night | Partly cloudy, with a low around 28. |
| Tuesday | Mostly sunny, with a high near 55. |
| Tuesday Night | Partly cloudy, with a low around 37. |
| Wednesday | Partly sunny, with a high near 53. |
| Wednesday Night | Mostly cloudy, with a low around 34. |
