National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fair

86°F

30°C

Humidity 70%
Wind Speed Calm
Barometer 29.90 in (1012.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 1 Jul 9:56 pm EDT
Extended Forecast for

Amherst NH

Extreme Heat Warning July 1, 10:04pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 1, 10:04pm until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Sunny and hot, with a high near 101. Heat index values as high as 107. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. West wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Heat index values as high as 106. West wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. West wind around 5 mph becoming calm.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 20%.
Thursday
Sunny and hot, with a high near 101. Heat index values as high as 107. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. West wind around 5 mph.
Friday
Sunny and hot, with a high near 100. Heat index values as high as 106. West wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 73. West wind around 5 mph becoming calm.
Independence Day
Mostly sunny and hot, with a high near 92.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 83.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny and hot, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Amherst NH
 42.85°N 71.64°W (Elev. 348 ft)
Last Update:
6:56 pm EDT Jul 1, 2026
Forecast Valid:
10pm EDT Jul 1, 2026-6pm EDT Jul 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation