Nearby Harbors
43.0783’ N, 70.7517’ W

Portsmouth, NH

66°
H 72°
L 49°
W
6mph
Low tide
7:23 pm
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Portsmouth, NH Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Oct 12 		Partly Cloudy
Close Hourly 		72º / 49º 1% W 8 mph 62%
1pm Partly Cloudy 66º 1% W 6 mph 68%
2pm Partly Cloudy 68º 1% W 7 mph 63%
3pm Mostly Sunny 70º 1% W 7 mph 62%
4pm Sunny 70º 1% WNW 7 mph 57%
5pm Sunny 69º 1% WNW 8 mph 58%
6pm Partly Cloudy 66º 1% WNW 7 mph 65%
7pm Partly Cloudy 64º 2% WNW 6 mph 71%
8pm Partly Cloudy 62º 5% NW 5 mph 75%
9pm Mostly Cloudy 61º 5% NW 4 mph 76%
10pm Cloudy 60º 6% NNW 4 mph 78%
11pm Cloudy 59º 14% NNE 4 mph 81%
Tue
Oct 13 		Rain
View Hourly 		55º / 52º 98% E 10 mph 87%
12am Cloudy 55º 16% NE 10 mph 84%
1am Cloudy 54º 24% NE 10 mph 85%
2am Showers 53º 42% ENE 11 mph 86%
3am Showers 52º 39% ENE 10 mph 85%
4am Showers 51º 42% ENE 10 mph 86%
5am Cloudy 50º 24% ENE 10 mph 86%
6am Cloudy 50º 18% ENE 9 mph 87%
7am Cloudy 50º 24% ENE 9 mph 87%
8am Light Rain 50º 67% ENE 9 mph 87%
9am Light Rain 51º 69% ENE 9 mph 84%
10am Light Rain 52º 68% ENE 9 mph 85%
11am Showers 51º 57% ENE 9 mph 86%
12pm Rain 51º 82% E 10 mph 87%
1pm Rain 52º 89% E 9 mph 88%
2pm Rain 52º 85% E 8 mph 88%
3pm Rain 53º 92% ESE 8 mph 89%
4pm Rain 54º 98% ESE 8 mph 89%
5pm Rain 55º 94% SE 9 mph 87%
6pm Rain 55º 93% SE 7 mph 91%
7pm Rain 55º 95% SE 6 mph 96%
8pm Rain 54º 89% SE 7 mph 97%
9pm Rain 54º 78% SSE 6 mph 99%
10pm Light Rain 54º 62% SE 5 mph 100%
11pm Thunderstorms 54º 61% SSE 5 mph 100%
Wed
Oct 14 		Partly Cloudy
View Hourly 		70º / 49º 17% WNW 8 mph 76%
12am Thunderstorms 54º 68% S 5 mph 100%
1am Cloudy 54º 21% SW 4 mph 100%
2am Cloudy 54º 24% WSW 4 mph 100%
3am Cloudy 54º 16% W 4 mph 98%
4am Cloudy 54º 23% W 5 mph 96%
5am Cloudy 53º 19% WNW 4 mph 94%
6am Cloudy 53º 6% WNW 3 mph 95%
7am Cloudy 54º 6% WNW 3 mph 92%
8am Mostly Cloudy 56º 5% WNW 4 mph 88%
9am Mostly Cloudy 59º 5% WNW 5 mph 83%
10am Partly Cloudy 60º 4% WNW 5 mph 84%
11am Mostly Cloudy 63º 18% WNW 6 mph 83%
12pm Partly Cloudy 66º 4% WNW 8 mph 77%
Thu
Oct 15 		Mostly Sunny 60º / 45º 3% NW 9 mph 52%
Fri
Oct 16 		Rain 58º / 42º 90% S 13 mph 84%
Sat
Oct 17 		Partly Cloudy/Wind 48º / 32º 8% WNW 21 mph 50%
Sun
Oct 18 		Mostly Sunny 51º / 35º 9% WNW 12 mph 48%
Mon
Oct 19 		Partly Cloudy 60º / 44º 3% SW 13 mph 58%

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

Columbus Day
High : 66ºF
Variable winds 5 kt or less. Areas of fog before 10am. Seas 1 ft or less.
Tonight
Low : 52ºF
NNW wind 5 to 8 kt becoming ENE 10 to 15 kt after midnight. Winds could gust as high as 25 kt. A chance of showers, mainly after 1am. Areas of fog after 2am. Seas 1 ft or less.
Tuesday
High : 61ºF
ENE wind around 10 kt becoming SE in the afternoon. Rain, mainly after 1pm. Areas of fog before 8am. Seas 1 ft or less.
Tuesday Night
Low : 57ºF
S wind around 10 kt becoming SW after midnight. Rain, mainly before 2am. Seas 1 ft or less.
Wednesday
High : 65ºF
WNW wind 5 to 10 kt. Partly sunny. Seas 1 ft or less.
Wednesday Night
Low : 53ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
High : 60ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Thursday Night
Low : 50ºF
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Friday
High : 60ºF
SSE wind 5 to 10 kt, with gusts as high as 20 kt. Showers. Seas 1 ft or less.

NOAA Buoy Data Near Portsmouth, NH See Map

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    Wind Speed Forecast for Portsmouth, NH

    MondayTuesdayWednesday
    Wind Speed (MPH) 68410109996445
    5pm9pm1am5am9am1pm5pm9pm1am5am9am1pm
    MPH 68410109996445
    DIR WWNWNWNEENEENEESESSESWWNWWNW

    Current Weather Conditions In Portsmouth, NH

    As Of: 16 minutes ago

    • 66ºF
    • 66ºF
    • 6mph
    • 0º (W)
    • 6mph
    • Partly Cloudy
    • 10mi
    • 29.70"
    • 68%
    • 0ºF

    The weather right now in Portsmouth, NH is Partly Cloudy. The current temperature is 66°F, and the expected high and low for today, Monday, October 12, 2026, are 72° high temperature and 49°F low temperature. The wind is currently blowing at 6 miles per hour, and coming from the West. The wind is gusting to 6 mph. With the wind and the atmosphere the temperature feels like 66° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 68 percent, and air pressure at 29.7 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

     

    Weather Alerts
    Small Craft Advisory - 2:14am Mon Oct 12 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 2 PM EDT WEDNESDAY...

    WHAT: East winds 10 to 20 kt with gusts up to 30 kt and seas
    3 to 6 ft expected.

    WHERE: Coastal Waters from Stonington, ME to Port Clyde, ME
    out 25 NM, Coastal Waters from Port Clyde, ME to Cape
    Elizabeth, ME out 25 NM and Coastal Waters from Cape
    Elizabeth, ME to Merrimack River, MA out 25 NM.

    WHEN: From 8 PM this evening to 2 PM EDT Wednesday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&

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