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

High pressure keeps fair weather is place through today, with rain showers arriving across southern zones tonight. Deteriorating marine and surf conditions later today and 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 15:15 - next update at 15:20  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 70.4, Max: 72.3, Min: 36.7 70.4°F
Colder 1.2°F than last hour.

Comfortable

Feels like: 70°F

24-hr difference
2.2°FWarmer 2.2°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
 Wind from N N
0
Gust:
1 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.
Tonight

Tonight: Cloudy
Cloudy
Humidity & Barometer Almanac Moon
Humidity: 48 % Increased 2.0% since last hour.
Dew Point: 49.8°F Increased 0.3°F since last hour.
Barometer: 30.061 inHg Falling 0.02  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
   1.0     Low 
High: 7.0 @ 11:50
109 W/m2 (21 %)
High: 816 @  12:38
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Partly Sunny
Partly Sunny

Hi 68 °F
NWS forecast: Partly sunny, with a high near 68. Northeast wind 5 to 10 mph.
 
Tonight

Tonight: Cloudy
Cloudy

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