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

Heat builds today, with temperatures and humidity combining on Tuesday for heat indices of 95 to 100 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 southeast across the area starting Tuesday evening into Tuesday night.
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Updated: @ 07/13/2026 09:25 - next update at 09:30  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 74.3, Max: 74.7, Min: 56.1 74.3°F
Warmer 7.4°F than last hour.

Comfortable

Feels like: 74°F

24-hr difference
2.1°FWarmer 2.1°F than yesterday at this time.
  Today Yesterday
High: 74.7°F
09:16
83.7°F
16:26
Low: 56.1°F
05:16
51.4°F
05:33
 Wind from SSW SSW
1
Gust:
2 mph
0 Bft - Calm
Today: 3 mph 09:01
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.
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 67 % Decreased 16.0% since last hour.
Dew Point: 62.6°F Increased 1.1°F since last hour.
Barometer: 30.058 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
1%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 00:00
49 W/m2 (8 %)
High: 50 @  08:19
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

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

Tonight: Partly Cloudy
Partly Cloudy

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