As of 11:34 EST

Weather in Merrimack, NH

56°Current weather

Merrimack, Saturday, 7 November, 11:34

Light rain. Feels like 55°. High 59°, low 52°.

Pressure29.71 inHg
Wind4.6 mph N
Humidity93%
Visibility2.0 mi
Dew point54°

Monthly outlook for Merrimack, NH: average high 52.3°, average low 38.5°. That is 2.9° above the climate normal for November. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 21 November (61.6°), the coolest 17 November (32.2°).

52.3°/38.5°
Average high / low
+2.9°
Above normal
5 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 November – 16 November49.6°48.6°+0.5°
17 November – 26 November56.9°44.3°+7°
27 November – 6 Decemberat normal41.7°—

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).

Sun, 0854° / 45°0.22Rain
54 °Rain

Merrimack, Sunday, 8 November

Rain. High 54°, low 45°.

Pressure29.68 inHg
Wind15.4 mph W
Humidity55%
Visibility6.2 mi
Dew point37°
Mon, 0953° / 43°0.04Light rain
53 °Light rain

Merrimack, Monday, 9 November

Light rain. High 53°, low 43°.

Pressure29.62 inHg
Wind10.3 mph W
Humidity58%
Visibility6.2 mi
Dew point39°
Tue, 1052° / 39°0Overcast
52 °Overcast

Merrimack, Tuesday, 10 November

Overcast. High 52°, low 39°.

Pressure29.80 inHg
Wind10.8 mph W
Humidity47%
Visibility6.2 mi
Dew point33°
Wed, 1149° / 34°0Overcast
49 °Overcast

Merrimack, Wednesday, 11 November

Overcast. High 49°, low 34°.

Pressure29.85 inHg
Wind10.4 mph NW
Humidity53%
Visibility—
Dew point31°
Thu, 1247° / 33°0.01Light rain
47 °Light rain

Merrimack, Thursday, 12 November

Light rain. High 47°, low 33°.

Pressure29.80 inHg
Wind9.9 mph NE
Humidity60%
Visibility—
Dew point30°
Fri, 1342° / 34°0.17Light rain
42 °Light rain

Merrimack, Friday, 13 November

Light rain. High 42°, low 34°.

Pressure29.91 inHg
Wind11.3 mph NE
Humidity60%
Visibility—
Dew point27°
Sat, 1439° / 35°0.31Light rain
39 °Light rain

Merrimack, Saturday, 14 November

Light rain. High 39°, low 35°.

Pressure29.59 inHg
Wind11.9 mph N
Humidity94%
Visibility—
Dew point35°
Sun, 1548° / 36°0.01Light rain
48 °Light rain

Merrimack, Sunday, 15 November

Light rain. High 48°, low 36°.

Pressure29.88 inHg
Wind7 mph NW
Humidity76%
Visibility—
Dew point35°
Mon, 1652° / 35°0Overcast
52 °Overcast

Merrimack, Monday, 16 November

Overcast. High 52°, low 35°.

Pressure29.94 inHg
Wind11.4 mph NW
Humidity66%
Visibility—
Dew point35°
Tue, 1751° / 32°0Mostly clear
51 °Mostly clear

Merrimack, Tuesday, 17 November

Mostly clear. High 51°, low 32°.

Pressure30.33 inHg
Wind6.7 mph NW
Humidity51%
Visibility—
Dew point26°
Wed, 1857° / 37°0Overcast
57 °Overcast

Merrimack, Wednesday, 18 November

Overcast. High 57°, low 37°.

Pressure30.21 inHg
Wind9.5 mph SW
Humidity70%
Visibility—
Dew point40°
Thu, 1957° / 39°0Mostly clear
57 °Mostly clear

Merrimack, Thursday, 19 November

Mostly clear. High 57°, low 39°.

Pressure30.27 inHg
Wind5.6 mph NW
Humidity61%
Visibility—
Dew point38°
Fri, 2057° / 38°0Overcast
57 °Overcast

Merrimack, Friday, 20 November

Overcast. High 57°, low 38°.

Pressure30.27 inHg
Wind7.7 mph SW
Humidity61%
Visibility—
Dew point36°
Sat, 2162° / 43°0Partly cloudy
62 °Partly cloudy

Merrimack, Saturday, 21 November

Partly cloudy. High 62°, low 43°.

Pressure30.00 inHg
Wind10.2 mph W
Humidity64%
Visibility—
Dew point44°
Sun, 2258° / 39°0Clear
58 °Clear

Merrimack, Sunday, 22 November

Clear. High 58°, low 39°.

Pressure30.27 inHg
Wind5.1 mph NW
Humidity51%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 0538° / 26°0.13Climate normal
38 °Climate normal

Merrimack, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.13 in
Chance of precipitation32%
Record high62° (2001)
Record low4° (2025)
Sun, 0640° / 26°0.15Climate normal
40 °Climate normal

Merrimack, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.15 in
Chance of precipitation42%
Record high66° (2001)
Record low8° (1971)

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.