Merrimack, New Hampshire Weather
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Weather Forecast for Merrimack, New Hampshire : Hillsborough County
Issued: 6:42 am EDT Jun 27, 2025 Latitude: 42.8650864 Longitude: -71.4934004 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Partly Sunny on Today 30% chance of thunderstorms on Tonight 60% chance of thunderstorms on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday 60% chance of thunderstorms on Tuesday Sunny on Wednesday Mostly Sunny on Thursday
High: 76°F Low: 58°F High: 68°F High: 82°F High: 92°F High: 88°F High: 88°F High: 86°F
Low: 62°F Low: 60°F Low: 68°F Low: 67°F Low: 64°F  
Partly Sunny Thunderstorms Thunderstorms Mostly Sunny Mostly Sunny Thunderstorms Sunny Mostly Sunny
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Current Conditions at
MANCHESTER - (KMHT)
64°
Clear
as of 7:53 AM EDST
Rel. Humidity: 72%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
NASHUA/BOIRE FIELD - (KASH)
64°
Mostly Clear
as of 7:56 AM EDST
Rel. Humidity: 72%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
7 MPH
040° Northeast
Cloud Level(s): Few at 1500ft
Current Conditions at
LAWRENCE - (KLWM)
64°
Mostly Cloudy
as of 7:54 AM EDST
Rel. Humidity: 72%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
6 MPH
020° North
Cloud Level(s): Scattered at 1600ft, Broken at 12000ft
Current Conditions at
ORANGE - (KORE)
63°
Cloudy
as of 7:52 AM EDST
Rel. Humidity: 72%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
3 MPH
350° North
Cloud Level(s): Solid Overcast at 8000ft
Partly Sunny on Today Today... Partly sunny, with a high near 76. Calm wind becoming southeast around 5 mph in the morning.
30% chance of thunderstorms Tonight Tonight... A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 58. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
60% chance of thunderstorms Saturday Saturday... Showers and thunderstorms likely before 1pm, then a chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 68. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
40% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 60.
Mostly Sunny on Monday Monday... Mostly sunny and hot, with a high near 92.
30% chance of rain Monday Night Monday Night... A 30 percent chance of showers after 2am. Partly cloudy, with a low around 68.
60% chance of thunderstorms Tuesday Tuesday... Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
30% chance of thunderstorms Tuesday Night Tuesday Night... A chance of thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunny on Wednesday Wednesday... Sunny, with a high near 88.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 64.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 86.
Current Radar Image


Sun Almanac for Merrimack, New Hampshire
Sunrise: 05:10 AM
Sunset: 8:29 PM
Civil Sunrise:04:34 AM
Civil Sunset: 9:04 PM
Nautical Sunrise: 03:49 AM
Nautical Sunset: 9:50 PM
Astro Sunrise: 02:53 AM
Astro Sunset: 10:46 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.