Heat Advisory HEAT ADVISORY - Belknap  - Caroll N  - Caroll S  - Cheshire/Keene  - Concord/Merrimack  - Coos South  - Grafton N  - Grafton S  - Hillsborough  - Nashua  - Portsmouth Seacoast  - Rockingham  - Strafford  - Sullivan

A warming trend begins Monday with heat and humidity peaking on Tuesday. Heat indices on Tuesday will approach 100 degrees south of the mountains. A cold front will bring the chance for storms late Tuesday into Tuesday night with a chance for severe weather in the north. Humidity abates Wednesday while temperatures will run above normal through the end of the week.
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Updated: @ 07/13/2026 03:30 - next update at 03:35  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 58.1, Max: 61.0, Min: 57.9 58.1°F
Colder 1.3°F than last hour.

Cool

Feels like: 58°F

24-hr difference
4.5°FWarmer 4.5°F than yesterday at this time.
  Today Yesterday
High: 61°F
00:00
83.7°F
16:26
Low: 57.9°F
03:29
51.4°F
05:33
 Calm
0
Gust:
0 mph
0 Bft - Calm
Today: 0 mph 00:00
Gust Month: 17 mph July 04
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.19 in
Season Total: 15.97 in
3 rain days in July.
Monday

Monday: Mostly Sunny
Mostly Sunny
Humidity & Barometer Almanac Moon
Humidity: 98 % Increased 2.0% since last hour.
Dew Point: 57.4°F Decreased 0.8°F since last hour.
Barometer: 30.073 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 05:19
Sunset: 20:26
Moonrise: 03:51
Moonset: 20:19
Waning Crescent
Waning Crescent, Moon at 27 days in cycle
2%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 00:00
0 W/m2 (0 %)
High: 0 @  00:00
 NWS Weather Forecast  - Outlook: Overnight & Monday
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 57 °F
NWS forecast: Partly cloudy, with a low around 57. South wind around 0 mph.
 
Monday

Monday: Mostly Sunny
Mostly Sunny

Hi 89 °F
NWS forecast: Mostly sunny, with a high near 89. Southwest wind 0 to 5 mph.