Current Conditions

Merrimack, New Hampshire

68°F20°C

Drizzle

Wind

SE 6 mph10 km/h

Humidity

77%

Cloud Cover

100%

As of Wednesday, September 2, 2026 at 9:50 AM EDT

Today's Outlook

Day

Overcast and warm, with a high of 71°F22°C and morning low of 63°F17°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h.

Night

Overcast, with a low around 64°F18°C. Breezy from the SE at 7 mph11 km/h. 14% chance of drizzle overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 71°F22°C	Low 63°F17°C	Precip 0.01 in0.3 mm14%	Cloud 98%	Wind SE 6 mph10 km/h	Wednesday: Overcast and warm, with a high of 71°F22°C and morning low of 63°F17°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. Wednesday Night: Overcast, with a low around 64°F18°C. Breezy from the SE at 7 mph11 km/h. 14% chance of drizzle overnight.
Rain	High 77°F25°C	Low 62°F16°C	Precip 0.55 in13.9 mm99%	Cloud 88%	Wind SSE 4 mph7 km/h	Thursday: Overcast and warm, with a high of 77°F25°C and morning low of 63°F17°C. Light wind from the SW around 4 mph6 km/h. 99% chance of rain throughout the day. Humid. Thursday Night: Overcast, with a low around 62°F16°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h. 96% chance of rain throughout the night.
Drizzle	High 81°F27°C	Low 64°F18°C	Precip 0.02 in0.6 mm12%	Cloud 47%	Wind NW 6 mph9 km/h	Friday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the NW at 6 to 7 mph9 to 12 km/h. 12% chance of drizzle around midday. Friday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the NW at 5 to 8 mph9 to 13 km/h. 12% chance of drizzle overnight.
Showers	High 73°F23°C	Low 62°F17°C	Precip 0.09 in2.4 mm68%	Cloud 46%	Wind N 7 mph12 km/h	Saturday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. 68% chance of showers throughout the day. Saturday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h. 45% chance of drizzle in the evening.
Clear	High 72°F22°C	Low 57°F14°C	Precip 0.01 in0.2 mm5%	Cloud 32%	Wind N 7 mph11 km/h	Sunday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the N at 8 to 9 mph13 to 15 km/h. Dry air. Sunday Night: Mostly clear, with a low around 57°F14°C. Light wind from the NNW around 6 mph10 km/h.
Clear	High 78°F25°C	Low 53°F11°C	Precip 0 in0 mm—	Cloud 25%	Wind NW 6 mph9 km/h	Monday: Mostly clear and warm, with a high of 78°F25°C and morning low of 58°F15°C. Light wind from the NW around 6 mph9 km/h. Monday Night: Partly cloudy, with a low around 53°F11°C. Light wind from the WNW around 6 mph10 km/h.
Partly Cloudy	High 78°F25°C	Low 58°F14°C	Precip 0.01 in0.3 mm8%	Cloud 49%	Wind WNW 6 mph9 km/h	Tuesday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 62°F16°C. Light wind from the NW around 5 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the WNW around 6 mph9 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	71°F22°C	63°F17°C	0.01 in0.3 mm· 14%	98%	Drizzle	SE 6 mph10 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 63°F17°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. NightOvercast, with a low around 64°F18°C. Breezy from the SE at 7 mph11 km/h. 14% chance of drizzle overnight.
	ThursdaySep 3	77°F25°C	62°F16°C	0.55 in13.9 mm· 99%	88%	Rain	SSE 4 mph7 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 63°F17°C. Light wind from the SW around 4 mph6 km/h. 99% chance of rain throughout the day. Humid. NightOvercast, with a low around 62°F16°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h. 96% chance of rain throughout the night.
	FridaySep 4	81°F27°C	64°F18°C	0.02 in0.6 mm· 12%	47%	Drizzle	NW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the NW at 6 to 7 mph9 to 12 km/h. 12% chance of drizzle around midday. NightMostly cloudy, with a low around 64°F18°C. Breezy from the NW at 5 to 8 mph9 to 13 km/h. 12% chance of drizzle overnight.
	SaturdaySep 5	73°F23°C	62°F17°C	0.09 in2.4 mm· 68%	46%	Showers	N 7 mph12 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. 68% chance of showers throughout the day. NightPartly cloudy, with a low around 62°F17°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h. 45% chance of drizzle in the evening.
	SundaySep 6	72°F22°C	57°F14°C	0.01 in0.2 mm· 5%	32%	Clear	N 7 mph11 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the N at 8 to 9 mph13 to 15 km/h. Dry air. NightMostly clear, with a low around 57°F14°C. Light wind from the NNW around 6 mph10 km/h.
	MondaySep 7	78°F25°C	53°F11°C	0 in0 mm· —	25%	Clear	NW 6 mph9 km/h
DayMostly clear and warm, with a high of 78°F25°C and morning low of 58°F15°C. Light wind from the NW around 6 mph9 km/h. NightPartly cloudy, with a low around 53°F11°C. Light wind from the WNW around 6 mph10 km/h.
	TuesdaySep 8	78°F25°C	58°F14°C	0.01 in0.3 mm· 8%	49%	Partly Cloudy	WNW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 62°F16°C. Light wind from the NW around 5 mph9 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the WNW around 6 mph9 km/h.
	WednesdaySep 9	76°F25°C	58°F15°C	0.07 in1.7 mm· 18%	72%	Drizzle	SW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 62°F17°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. 17% chance of drizzle in the evening.
	ThursdaySep 10	82°F28°C	68°F20°C	0.07 in1.8 mm· 15%	61%	Drizzle	WSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the W at 9 to 10 mph14 to 16 km/h. 15% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the WSW at 8 mph13 km/h. 12% chance of drizzle throughout the night.
	FridaySep 11	79°F26°C	66°F19°C	0.06 in1.4 mm· 10%	44%	Drizzle	WNW 7 mph12 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 68°F20°C. Breezy from the WNW at 8 to 9 mph12 to 14 km/h. 10% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the W at 7 to 8 mph12 to 13 km/h.
	SaturdaySep 12	77°F25°C	61°F16°C	0.07 in1.7 mm· 13%	49%	Drizzle	W 7 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the WSW around 6 mph10 km/h.
	SundaySep 13	75°F24°C	61°F16°C	0.15 in3.8 mm· 20%	57%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Light wind from the WSW around 6 mph10 km/h. 19% chance of drizzle throughout the night.
	MondaySep 14	74°F24°C	61°F16°C	0.08 in2 mm· 15%	58%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F24°C and morning low of 62°F17°C. Breezy from the W at 7 mph11 km/h. 12% chance of drizzle throughout the day. NightMostly cloudy, with a low around 61°F16°C. Light wind from the W around 6 mph10 km/h. 15% chance of drizzle throughout the night.
	TuesdaySep 15	73°F23°C	59°F15°C	0.13 in3.4 mm· 23%	57%	Showers	W 6 mph10 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 61°F16°C. Breezy from the W at 7 mph11 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Light wind from the W around 6 mph10 km/h. 19% chance of showers throughout the night.
	WednesdaySep 16	71°F22°C	57°F14°C	0.16 in4 mm· 19%	54%	Showers	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 59°F15°C. Breezy from the NW at 7 mph11 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Light wind from the WNW around 6 mph10 km/h. 19% chance of showers throughout the night.

Nearby Cities

Bedford6 mi9 km Nashua7 mi11 km Derry8 mi14 km Manchester9 mi15 km Derry Village9 mi15 km Salem16 mi25 km

About This Forecast

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Coordinates: 42.8651°N, 71.4934°W·Elevation: 47m·Timezone: America/New_York·Population: 26,726