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.

Mostly Cloudy

77°F

25°C

Humidity 82%
Wind Speed Vrbl 5 mph
Barometer 30.05 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 14 Jul 8:56 pm EDT
Extended Forecast for

Amherst NH

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind becoming southwest around 5 mph.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm.

    Low: 72 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 8am. Otherwise, partly sunny and hot, with a high near 90. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Scattered thunderstorms before 8pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Scattered
    T-storms then
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 87.

    High: 87 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 20 percent chance of showers after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind.
Tuesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 68. Calm wind.
Wednesday
Mostly sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind becoming southwest around 5 mph.
Wednesday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 8am. Otherwise, partly sunny and hot, with a high near 90. Chance of precipitation is 50%.
Thursday Night
Scattered thunderstorms before 8pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 72. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 82.
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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:
7:55 pm EDT Jul 14, 2025
Forecast Valid:
9pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025
 
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