As of 11:14 EST

Weather in Merrimack, NH

71°Current weather

Merrimack, Thursday, 5 November, 11:14

Overcast. Feels like 72°. High 71°, low 57°.

Pressure29.88 inHg
Wind10.4 mph S
Humidity76%
Visibility6.2 mi
Dew point64°

Monthly outlook for Merrimack, NH: average high 54.8°, average low 41.1°. That is 3.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 5 November (71.2°), the coolest 13 November (30.3°).

54.8°/41.1°
Average high / low
+3.6°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
5 November – 14 November54.4°49.6°+2.7°
15 November – 24 November55.3°44.9°+5.8°
25 November – 4 Decemberat normal42.6°—

November records over 66 years

75.2°6 November 2024All-time high
4.5°22 November 2018All-time low

Climate normals and records are computed from the nearest reference point — Bedford (6 mi).

Fri, 0671° / 58°0.04Light rain
71 °Light rain

Merrimack, Friday, 6 November

Light rain. High 71°, low 58°.

Pressure29.85 inHg
Wind2.9 mph S
Humidity60%
Visibility6.2 mi
Dew point56°
Sat, 0759° / 47°0.13Rain
59 °Rain

Merrimack, Saturday, 7 November

Rain. High 59°, low 47°.

Pressure29.77 inHg
Wind8.1 mph N
Humidity67%
Visibility6.2 mi
Dew point44°
Sun, 0854° / 43°0.16Rain
54 °Rain

Merrimack, Sunday, 8 November

Rain. High 54°, low 43°.

Pressure29.71 inHg
Wind15.7 mph W
Humidity51%
Visibility6.2 mi
Dew point37°
Mon, 0952° / 44°0Light rain
52 °Light rain

Merrimack, Monday, 9 November

Light rain. High 52°, low 44°.

Pressure29.68 inHg
Wind13.6 mph W
Humidity60%
Visibility—
Dew point37°
Tue, 1052° / 40°0Overcast
52 °Overcast

Merrimack, Tuesday, 10 November

Overcast. High 52°, low 40°.

Pressure29.85 inHg
Wind9.9 mph W
Humidity58%
Visibility—
Dew point33°
Wed, 1155° / 42°0Overcast
55 °Overcast

Merrimack, Wednesday, 11 November

Overcast. High 55°, low 42°.

Pressure29.77 inHg
Wind9.7 mph W
Humidity53%
Visibility—
Dew point34°
Thu, 1245° / 31°0Clear
45 °Clear

Merrimack, Thursday, 12 November

Clear. High 45°, low 31°.

Pressure29.80 inHg
Wind10.2 mph NW
Humidity48%
Visibility—
Dew point21°
Fri, 1342° / 30°0.04Light snow
42 °Light snow

Merrimack, Friday, 13 November

Light snow. High 42°, low 30°.

Pressure29.85 inHg
Wind6.4 mph NE
Humidity53%
Visibility—
Dew point23°
Sat, 1443° / 31°0.01Light snow
43 °Light snow

Merrimack, Saturday, 14 November

Light snow. High 43°, low 31°.

Pressure29.80 inHg
Wind10.6 mph NW
Humidity56%
Visibility—
Dew point25°
Sun, 1549° / 34°0Partly cloudy
49 °Partly cloudy

Merrimack, Sunday, 15 November

Partly cloudy. High 49°, low 34°.

Pressure30.06 inHg
Wind9.2 mph NW
Humidity48%
Visibility—
Dew point24°
Mon, 1658° / 39°0Clear
58 °Clear

Merrimack, Monday, 16 November

Clear. High 58°, low 39°.

Pressure30.06 inHg
Wind8.7 mph W
Humidity49%
Visibility—
Dew point32°
Tue, 1755° / 38°0Overcast
55 °Overcast

Merrimack, Tuesday, 17 November

Overcast. High 55°, low 38°.

Pressure30.00 inHg
Wind7.3 mph W
Humidity51%
Visibility—
Dew point32°
Wed, 1855° / 39°0Partly cloudy
55 °Partly cloudy

Merrimack, Wednesday, 18 November

Partly cloudy. High 55°, low 39°.

Pressure30.03 inHg
Wind5.8 mph N
Humidity60%
Visibility—
Dew point36°
Thu, 1954° / 40°0Overcast
54 °Overcast

Merrimack, Thursday, 19 November

Overcast. High 54°, low 40°.

Pressure30.30 inHg
Wind7.2 mph S
Humidity70%
Visibility—
Dew point39°
Fri, 2061° / 45°0Overcast
61 °Overcast

Merrimack, Friday, 20 November

Overcast. High 61°, low 45°.

Pressure29.94 inHg
Wind11.8 mph W
Humidity54%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2144° / 30°0.12Climate normal
44 °Climate normal

Merrimack, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.12 in
Chance of precipitation32%
Record high61° (1991)
Record low13° (1967)
Sun, 2243° / 31°0.14Climate normal
43 °Climate normal

Merrimack, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.14 in
Chance of precipitation37%
Record high62° (1999)
Record low4° (2018)
Mon, 2343° / 30°0.13Climate normal
43 °Climate normal

Merrimack, Monday, 23 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.13 in
Chance of precipitation27%
Record high65° (1999)
Record low6° (2018)
Tue, 2443° / 30°0.07Climate normal
43 °Climate normal

Merrimack, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (1979)
Record low6° (1989)
Wed, 2544° / 30°0.15Climate normal
44 °Climate normal

Merrimack, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.15 in
Chance of precipitation32%
Record high61° (1979)
Record low15° (1997)
Thu, 2644° / 31°0.2Climate normal
44 °Climate normal

Merrimack, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.2 in
Chance of precipitation48%
Record high62° (1979)
Record low15° (1978)
Fri, 2744° / 31°0.14Climate normal
44 °Climate normal

Merrimack, Friday, 27 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.14 in
Chance of precipitation38%
Record high62° (1979)
Record low13° (1978)
Sat, 2844° / 31°0.18Climate normal
44 °Climate normal

Merrimack, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.18 in
Chance of precipitation38%
Record high65° (1990)
Record low13° (1996)
Sun, 2943° / 30°0.07Climate normal
43 °Climate normal

Merrimack, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (1990)
Record low8° (2014)
Mon, 3042° / 29°0.11Climate normal
42 °Climate normal

Merrimack, Monday, 30 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2006)
Record low15° (1967)
Tue, 0142° / 29°0.13Climate normal
42 °Climate normal

Merrimack, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation33%
Record high64° (2001)
Record low11° (1989)
Wed, 0242° / 28°0.12Climate normal
42 °Climate normal

Merrimack, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.12 in
Chance of precipitation33%
Record high63° (2006)
Record low7° (1967)
Thu, 0341° / 28°0.15Climate normal
41 °Climate normal

Merrimack, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.15 in
Chance of precipitation38%
Record high63° (2009)
Record low5° (1976)
Fri, 0440° / 26°0.11Climate normal
40 °Climate normal

Merrimack, Friday, 4 December

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.11 in
Chance of precipitation23%
Record high64° (1982)
Record low6° (1989)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Merrimack, NH are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Merrimack, NH since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.