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.

Fair

54°F

12°C

Humidity 69%
Wind Speed Calm
Barometer 30.25 in (1024.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 19 Sep 8:56 am EDT
Extended Forecast for

Amherst NH

  • Today

    Today: Mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Southeast wind around 5 mph becoming calm.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers between noon and 2pm, then rain after 2pm. High near 58. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Mostly Cloudy
    then Rain

  • Sunday Night

    Sunday Night: Rain before midnight, then showers likely, mainly between midnight and 1am. Low around 45. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%.

    Low: 45 °F

    Rain

  • Monday

    Monday: Mostly sunny, with a high near 65. North wind around 5 mph.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 67. Calm wind.
Tonight
Partly cloudy, with a low around 44. Southeast wind around 5 mph becoming calm.
Sunday
A chance of showers between noon and 2pm, then rain after 2pm. High near 58. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain before midnight, then showers likely, mainly between midnight and 1am. Low around 45. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 65. North wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 60.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Amherst NH
 42.87°N 71.61°W (Elev. 276 ft)
Last Update:
5:35 am EDT Sep 19, 2026
Forecast Valid:
9am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
Forecast Discussion
 
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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