Coastal Flood Advisory COASTAL FLOOD ADVISORY - Portsmouth Seacoast  - Rockingham
High Surf Advisory HIGH SURF ADVISORY - Portsmouth Seacoast  - Rockingham

Expect deteriorating marine and surf conditions later tonight as northeast winds increase. A strong nor'easter will loop south of New England this weekend. A prolonged period of soaking rain, gusty winds, high surf, and coastal flooding are likely into early next week.
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Updated: @ 09/25/2026 19:00 - next update at 19:05  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 60.3, Max: 72.3, Min: 36.7 60.3°F
Colder 4.7°F than last hour.

Cool

Feels like: 60°F

24-hr difference
6.3°FWarmer 6.3°F than yesterday at this time.
  Today Yesterday
High: 72.3°F
13:50
68.7°F
15:31
Low: 36.7°F
06:59
34°F
06:51
 Calm
0
Gust:
0 mph
0 Bft - Calm
Today: 11 mph 11:40
Gust Month: 16 mph September 14
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 4.03 in
Season Total: 25.11 in
11 rain days in September.
Saturday

Saturday: Cloudy then Chance Light Rain
Cloudy then Chance Light Rain
Humidity & Barometer Almanac Moon
Humidity: 82 % Increased 12.0% since last hour.
Dew Point: 54.8°F Decreased 0.2°F since last hour.
Barometer: 30.025 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 06:37
Sunset: 18:39
Moonset: 05:20
Moonrise: 18:03
Full Moon
Full Moon, Moon at 13 days in cycle
99%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 7.0 @ 11:50
0 W/m2 (0 %)
High: 816 @  12:38
 NWS Weather Forecast  - Outlook: Tonight & Saturday
Tonight

Tonight: Cloudy
Cloudy

Lo 52 °F
NWS forecast: Cloudy, with a low around 52. Northeast wind around 5 mph.
 
Saturday

Saturday: Cloudy then Chance Light Rain
Cloudy then Chance Light Rain

Hi 62 °F
NWS forecast: A chance of rain after noon. Cloudy, with a high near 62. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.