Air Quality Alert AIR QUALITY ALERT - Portsmouth Seacoast  - Rockingham

High pressure builds in today for fair weather with lower temperatures and humidity levels. Low pressure crosses south of New England late Monday through Tuesday, bringing the next chance for rain. High pressure returns mid week with heat and humidity building for the second half of the week.
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Updated: @ 07/05/2026 11:40 - next update at 11:45  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 80.3, Max: 80.4, Min: 56.1 80.3°F
Warmer 2.3°F than last hour.

Warm

Feels like: 80°F

24-hr difference
-4°FColder 4.0°F than yesterday at this time.
  Today Yesterday
High: 80.4°F
11:35
87.4°F
12:51
Low: 56.1°F
05:28
65.5°F
23:58
 Wind from SE SE
1
Gust:
3 mph
0 Bft - Calm
Today: 4 mph 10:48
Gust Month: 17 mph July 04
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.01 in
Storm Rain: 0 in
This Month: 0.03 in
Season Total: 15.8 in
2 rain days in July.
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 50 % Decreased 11.0% since last hour.
Dew Point: 60.1°F Decreased 3.3°F since last hour.
Barometer: 29.906 inHg  
Baro Trend: Steady
Sunrise: 05:13
Sunset: 20:29
Moonset: 10:46
Moonrise: 23:27
Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
72%
Illuminated
UV Index Solar Radiation
   7.0     High 
High: 7.0 @ 11:10
798 W/m2 (85 %)
High: 812 @  11:39
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

Hi 85 °F
NWS forecast: Mostly sunny, with a high near 85. Northeast wind around 0 mph.
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy

Lo 58 °F
NWS forecast: Mostly cloudy, with a low around 58. East wind around 0 mph.