Nearby Harbors
43.0783’ N, 70.7517’ W

Portsmouth, NH

65°
H 78°
L 47°
WNW
2mph
Low tide
11:05 am
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Portsmouth, NH Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Sep 18 		Mostly Sunny
Close Hourly 		78º / 47º 15% NW 13 mph 62%
8am Partly Cloudy 65º 15% WNW 2 mph 96%
9am Partly Cloudy 68º 15% NW 4 mph 86%
10am Partly Cloudy 71º 15% NW 6 mph 75%
11am Partly Cloudy 74º 15% NW 6 mph 63%
12pm Partly Cloudy 75º 15% NW 7 mph 56%
1pm Partly Cloudy 77º 15% NW 8 mph 50%
2pm Sunny 77º 0% NW 10 mph 46%
3pm Sunny 77º 0% NW 12 mph 45%
4pm Sunny 76º 0% NW 13 mph 45%
5pm Mostly Sunny 74º 0% NW 12 mph 44%
6pm Sunny 71º 0% NW 11 mph 46%
7pm Mostly Clear 68º 0% NW 9 mph 48%
8pm Mostly Clear 65º 0% NW 7 mph 52%
9pm Mostly Clear 63º 0% NNW 6 mph 55%
10pm Partly Cloudy 60º 0% NNW 5 mph 59%
11pm Partly Cloudy 58º 0% NNW 5 mph 60%
Sat
Sep 19 		Mostly Sunny
View Hourly 		65º / 46º 1% E 7 mph 49%
12am Partly Cloudy 57º 0% N 5 mph 61%
1am Partly Cloudy 56º 0% N 4 mph 63%
2am Partly Cloudy 55º 0% N 5 mph 63%
3am Partly Cloudy 53º 0% N 5 mph 63%
4am Mostly Clear 51º 1% N 5 mph 65%
5am Mostly Clear 49º 1% N 5 mph 67%
6am Mostly Clear 48º 1% N 5 mph 67%
7am Mostly Sunny 49º 1% N 5 mph 67%
8am Sunny 52º 0% N 6 mph 62%
9am Sunny 55º 0% N 6 mph 55%
10am Sunny 58º 0% NNE 6 mph 49%
11am Mostly Sunny 60º 0% NE 5 mph 44%
12pm Partly Cloudy 62º 0% NE 5 mph 42%
1pm Partly Cloudy 63º 0% ESE 5 mph 41%
2pm Partly Cloudy 64º 0% SE 5 mph 41%
3pm Partly Cloudy 63º 0% SE 6 mph 43%
4pm Partly Cloudy 63º 0% SE 7 mph 44%
5pm Partly Cloudy 62º 0% SSE 7 mph 47%
6pm Partly Cloudy 60º 0% SSE 7 mph 49%
7pm Partly Cloudy 58º 1% SSE 5 mph 55%
8pm Partly Cloudy 56º 1% SSE 5 mph 62%
9pm Partly Cloudy 55º 2% SSE 4 mph 66%
10pm Partly Cloudy 54º 3% S 3 mph 70%
11pm Mostly Clear 53º 3% S 3 mph 74%
Sun
Sep 20 		PM Rain
View Hourly 		62º / 53º 84% SSE 9 mph 72%
12am Clear 52º 4% SSW 2 mph 78%
1am Mostly Clear 51º 4% SSW 2 mph 81%
2am Partly Cloudy 50º 5% SSW 2 mph 84%
3am Mostly Clear 49º 6% SW 2 mph 86%
4am Partly Cloudy 49º 6% SSW 1 mph 87%
5am Partly Cloudy 47º 6% SSW 1 mph 91%
6am Partly Cloudy 47º 6% SSW 1 mph 91%
7am Partly Cloudy 49º 6% SSW 2 mph 89%
Mon
Sep 21 		Partly Cloudy 68º / 51º 18% NNE 10 mph 65%
Tue
Sep 22 		Mostly Cloudy 61º / 50º 15% NE 12 mph 58%
Wed
Sep 23 		Partly Cloudy 63º / 52º 15% ENE 15 mph 63%
Thu
Sep 24 		Showers 61º / 51º 44% NE 15 mph 66%
Fri
Sep 25 		Showers 61º / 50º 55% N 13 mph 69%

Weather Radar for Portsmouth, NH See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Portsmouth, NH

Friday
High : 73ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Friday Night
Low : 52ºF
NNW wind 5 to 10 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.
Saturday
High : 61ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Saturday Night
Low : 54ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Sunday
High : 61ºF
S wind 5 to 10 kt. A chance of rain after 2pm. Seas 1 ft or less.
Sunday Night
Low : 56ºF
Variable winds 5 kt or less. Rain likely, mainly between 8pm and 2am. Seas 1 ft or less.
Monday
High : 62ºF
NNE wind 5 to 10 kt becoming ENE in the afternoon. A chance of rain before 7am. Seas 1 ft or less.
Monday Night
Low : 53ºF
NE wind 5 to 8 kt increasing to 7 to 10 kt after midnight. Winds could gust as high as 20 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
High : 57ºF
NE wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

NOAA Buoy Data Near Portsmouth, NH See Map

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    Wind Speed Forecast for Portsmouth, NH

    FridaySaturdaySunday
    Wind Speed (MPH) 2713755657521
    12pm4pm8pm12am4am8am12pm4pm8pm12am4am8am
    MPH 2713755657521
    DIR WNWNWNWNWNNNNESESSESSWSSW

    Current Weather Conditions In Portsmouth, NH

    As Of: 19 minutes ago

    • 65ºF
    • 65ºF
    • 2mph
    • 0º (WNW)
    • 2mph
    • Partly Cloudy
    • 9mi
    • 30.01"
    • 96%
    • 0ºF

    The weather right now in Portsmouth, NH is Partly Cloudy. The current temperature is 65°F, and the expected high and low for today, Friday, September 18, 2026, are 78° high temperature and 47°F low temperature. The wind is currently blowing at 2 miles per hour, and coming from the West Northwest. The wind is gusting to 2 mph. With the wind and the atmosphere the temperature feels like 65° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 96 percent, and air pressure at 30.01 in. Visibility is 9 nautical miles. There are no current weather alert(s).

     

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