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

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.84 in (1010.3 mb)
Dewpoint 66°F (19°C)
Visibility 1.00 mi
Last update 13 Sep 10:56 pm EDT
Extended Forecast for

3 Miles W East Merrimack NH

  • Tonight

    Tonight: Areas of fog before 1am. Otherwise, mostly cloudy, with a low around 60. Calm wind becoming northwest around 5 mph.

    Low: 60 °F

    Areas Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 71 °F

    Becoming
    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 3am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of fog before 1am. Otherwise, mostly cloudy, with a low around 60. Calm wind becoming northwest around 5 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Clear, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 71. Calm wind.
Tuesday Night
Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 77.
Thursday Night
A 30 percent chance of showers before 3am. Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 51.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W East Merrimack NH
 42.87°N 71.55°W (Elev. 335 ft)
Last Update:
8:50 pm EDT Sep 13, 2026
Forecast Valid:
11pm EDT Sep 13, 2026-6pm EDT Sep 20, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation