Current conditions at
Nashua - Boire Field Airport (KASH)
Lat: 42.78°NLon: 71.51°WElev: 180ft.
Fog/Mist
64°F
18°C
| Humidity | 96% |
| Wind Speed | E 5 mph |
| Barometer | 29.93 in (1013.5 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 6.00 mi |
| Last update | 23 Aug 2:56 am EDT |
Extended Forecast for
Merrimack NH
Overnight
Low: 61 °F
Slight Chance
Showers and
Patchy FogSunday
High: 76 °F
Showers
Likely and
Patchy FogSunday Night
Low: 59 °F
Showers
Likely and
Patchy FogMonday
High: 81 °F
Patchy Fog
then SunnyMonday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 55 °F
Mostly Clear
Wednesday
High: 83 °F
Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Detailed Forecast
Overnight
A 20 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 61. Calm wind.
Sunday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Patchy fog. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 59. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 55. West wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Merrimack NH
42.86°N 71.52°W (Elev. 207 ft)
42.86°N 71.52°W (Elev. 207 ft)
2:36 am EDT Aug 23, 2026
3am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
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