Heat Advisory HEAT ADVISORY - Hillsborough  - Nashua  - Portsmouth Seacoast  - Rockingham
Air Quality Alert AIR QUALITY ALERT - Portsmouth Seacoast  - Rockingham

A period of hot a breezy weather is expected today and Wednesday as temperatures climb into the upper 80s and low 90s ahead of a cold front. Strong to severe thunderstorms will be possible this afternoon into early evening ahead of the front with another round of showers and storms possible Wednesday as the front crosses. It will also be breezy today and Wednesday with gusts of 25 to 30 mph. Cooler and drier weather follows the front for Thursday and Friday.
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Updated: @ 05/19/2026 15:10 - next update at 15:15  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 91.4, Max: 91.8, Min: 52.5 91.4°F
Warmer 1.8°F than last hour.

Hot

Feels like: 94°F

24-hr difference
11.2°FWarmer 11.2°F than yesterday at this time.
  Today Yesterday
High: 91.8°F
12:24
81.5°F
16:03
Low: 52.5°F
05:10
52.9°F
04:40
 Wind from SW SW
2
Gust:
4 mph
1 Bft - Light air
Today: 17 mph 14:19
Gust Month: 23 mph May 07
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 3.62 in
Season Total: 9.1 in
8 rain days in May.
Tonight

Tonight: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 43 % Increased 2.0% since last hour.
Dew Point: 65.9°F Increased 2.7°F since last hour.
Barometer: 29.769 inHg Falling 0.02  inHg/hr
Baro Trend: Steady
Sunrise: 05:18
Sunset: 20:08
Moonrise: 07:29
Moonset: 23:57
Waxing Crescent
Waxing Crescent, Moon at 4 days in cycle
13%
Illuminated
UV Index Solar Radiation
   1.0     Low 
High: 9.0 @ 12:19
153 W/m2 (19 %)
High: 963 @  12:20
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 91 °F
NWS forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 91. West wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
 
Tonight

Tonight: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy

Lo 66 °F
NWS forecast: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.