Heat Advisory HEAT ADVISORY - Hillsborough  - Nashua  - Portsmouth Seacoast  - Rockingham

Heat and humidity build through late week and persist through the weekend as a subtropical ridge of high pressure drives the weather pattern for New England. There will be daily chances for storms Thursday through Saturday. Coverage will be limited while there is potential for a few strong storms and localized torrential rainfall.
Click to Zoom/Unzoom Visit Gray, Maine Weather Forecast Office-


spacer
Updated: @ 08/05/2026 16:15 - next update at 16:20  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 85.2, Max: 86.4, Min: 55.0 85.2°F
Warmer 1.0°F than last hour.

Warm

Feels like: 87°F

24-hr difference
-0.9°FColder 0.9°F than yesterday at this time.
  Today Yesterday
High: 86.4°F
14:59
86.4°F
14:56
Low: 55°F
05:44
55.2°F
05:51
 Wind from W W
1
Gust:
2 mph
0 Bft - Calm
Today: 6 mph 12:44
Gust Month: 13 mph August 03
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 2.59 in
Season Total: 20.13 in
1 rain day in August.
Tonight

Tonight: Partly Cloudy then Patchy Fog
Partly Cloudy then Patchy Fog
Humidity & Barometer Almanac Moon
Humidity: 50 % Decreased 2.0% since last hour.
Dew Point: 64.2°F Decreased 0.2°F since last hour.
Barometer: 29.982 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 05:41
Sunset: 20:04
Moonset: 13:22
Moonrise: 23:05
Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
53%
Illuminated
UV Index Solar Radiation
   1.0     Low 
High: 9.0 @ 12:19
123 W/m2 (20 %)
High: 993 @  12:32
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny

Hi 86 °F
NWS forecast: Mostly sunny, with a high near 86. Southwest wind around 5 mph.
 
Tonight

Tonight: Partly Cloudy then Patchy Fog
Partly Cloudy then Patchy Fog

Lo 64 °F
NWS forecast: Patchy fog after 3am. Partly cloudy, with a low around 64. Southwest wind 0 to 5 mph.