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

Heat and humidity peaks on Tuesday with heat indices of 95 to 105 degrees south of the mountains. Humidity abates Wednesday, but hot conditions linger into Thursday with highs in the upper 80s to low 90s. Strong to severe thunderstorms track south across the area starting Tuesday evening into Tuesday night.
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Updated: @ 07/13/2026 19:15 - next update at 19:20  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 81.9, Max: 88.3, Min: 56.1 81.9°F
Colder 1.8°F than last hour.

Warm

Feels like: 85°F

24-hr difference
4.5°FWarmer 4.5°F than yesterday at this time.
  Today Yesterday
High: 88.3°F
14:44
83.7°F
16:26
Low: 56.1°F
05:16
51.4°F
05:33
 Calm
0
Gust:
0 mph
0 Bft - Calm
Today: 8 mph 11:33
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.
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Humidity & Barometer Almanac Moon
Humidity: 65 % Increased 8.0% since last hour.
Dew Point: 69°F Increased 2.0°F since last hour.
Barometer: 29.917 inHg  
Baro Trend: Steady
Sunrise: 05:19
Sunset: 20:26
Moonrise: 03:51
Moonset: 20:19
New Moon
New Moon, Moon at 0 days in cycle
0%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 8.0 @ 13:11
22 W/m2 (25 %)
High: 875 @  13:20
 NWS Weather Forecast  - Outlook: Tonight & Tuesday
Tonight

Tonight: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy

Lo 65 °F
NWS forecast: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 65. Southwest wind around 5 mph. Chance of precipitation is 20%.
 
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny

Hi 95 °F
NWS forecast: Mostly sunny, with a high near 95. Heat index values as high as 101. West wind 5 to 10 mph.