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Heat Advisory HEAT ADVISORY - Hillsborough  - Nashua  - Portsmouth Seacoast  - Rockingham
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Warm again Wednesday as temperatures climb into the upper 80s to around 90 for the coast and interior. Strong to severe thunderstorms will be possible through early evening today with another round of showers and storms possible Wednesday. Cooler and drier weather follows behind a cold front for Thursday and Friday.
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Updated: @ 05/19/2026 18:40 - next update at 18:45  
Summary / Temperature Wind Rain Outlook
Mostly cloudy Mostly cloudy
Currently: 78.2, Max: 91.8, Min: 52.5 78.2°F
Colder 1.4°F than last hour.

Comfortable

Feels like: 78°F

24-hr difference
3.9°FWarmer 3.9°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 SSW SSW
1
Gust:
 3 mph
0 Bft - Calm
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: 76 % Increased 7.0% since last hour.
Dew Point: 70°F Increased 1.3°F since last hour.
Barometer: 29.755 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
14%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 9.0 @ 12:19
36 W/m2 (25 %)
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.