High Surf Advisory HIGH SURF ADVISORY - Portsmouth Seacoast  - Rockingham
Coastal Flood Watch COASTAL FLOOD WATCH - 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 07:45 - next update at 07:50  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 37.9, Max: 43.5, Min: 36.7 37.9°F
Warmer 1.0°F than last hour.

Cold

Feels like: 38°F

24-hr difference
2.5°FWarmer 2.5°F than yesterday at this time.
  Today Yesterday
High: 43.5°F
00:00
68.7°F
15:31
Low: 36.7°F
06:59
34°F
06:51
 Calm
0
Gust:
0 mph
0 Bft - Calm
Today: 0 mph 00:00
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: Chance Light Rain
Chance Light Rain
Humidity & Barometer Almanac Moon
Humidity: 99 %  
Dew Point: 37.6°F Increased 1.0°F since last hour.
Barometer: 30.189 inHg  
Baro Trend: Steady
Sunrise: 06:37
Sunset: 18:39
Moonset: 05:20
Moonrise: 18:03
Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
98%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 00:00
10 W/m2 (12 %)
High: 11 @  07:40
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

Hi 68 °F
NWS forecast: Mostly sunny, with a high near 68. North wind 0 to 10 mph.
 
Tonight

Tonight: Chance Light Rain
Chance Light Rain

Lo 50 °F
NWS forecast: A chance of rain after 11pm. Cloudy, with a low around 50. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.