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Hazardous Weather Conditions

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fair

78°F

26°C

Humidity 82%
Wind Speed Calm
Barometer 29.88 in (1011.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Jul 12:56 am EDT
Extended Forecast for

2 Miles W East Merrimack NH

Extreme Heat Warning July 3, 01:43am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 3, 01:43am until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 103. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Scattered showers between 10pm and midnight. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 72 °F

    Scattered
    Showers then
    Partly Cloudy

  • Independence Day

    Independence Day: A 30 percent chance of showers after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. West wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 8pm. Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.

    Low: 65 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers after 3pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Northwest wind around 5 mph.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 103. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Scattered showers between 10pm and midnight. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm. Chance of precipitation is 40%.
Independence Day
A 30 percent chance of showers after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. West wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers before 8pm. Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 62.
Monday
A 30 percent chance of showers after 3pm. Partly sunny, with a high near 83.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Tuesday
A 30 percent chance of showers before 10am. Partly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny and hot, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W East Merrimack NH
 42.86°N 71.52°W (Elev. 207 ft)
Last Update:
9:31 pm EDT Jul 2, 2026
Forecast Valid:
1am EDT Jul 3, 2026-6pm EDT Jul 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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