As of 22:35 EST

Weather in Merrimack, NH

46°Current weather

Merrimack, Monday, 9 November, 22:35

Clear. Feels like 40°. High 54°, low 44°.

Pressure29.83 inHg
Wind12.7 mph W
Humidity77%
Visibility6.2 mi
Dew point39°

Monthly outlook for Merrimack, NH: average high 50.1°, average low 35.4°. That is 2.1° above the climate normal for November. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 November (57.7°), the coolest 23 November (30.9°).

50.1°/35.4°
Average high / low
+2.1°
Above normal
1 / 5
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 November – 18 November48.5°47.7°+0.5°
19 November – 28 November52.7°43.9°+4.8°
29 November – 8 Decemberat normal40.3°—

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).

Tue, 1054° / 43°0Overcast
54 °Overcast

Merrimack, Tuesday, 10 November

Overcast. High 54°, low 43°.

Pressure29.80 inHg
Wind10 mph W
Humidity49%
Visibility6.2 mi
Dew point35°
Wed, 1151° / 36°0Overcast
51 °Overcast

Merrimack, Wednesday, 11 November

Overcast. High 51°, low 36°.

Pressure29.88 inHg
Wind8.4 mph NW
Humidity50%
Visibility6.2 mi
Dew point31°
Thu, 1248° / 35°0Overcast
48 °Overcast

Merrimack, Thursday, 12 November

Overcast. High 48°, low 35°.

Pressure29.77 inHg
Wind4.9 mph E
Humidity58%
Visibility6.2 mi
Dew point31°
Fri, 1338° / 34°0.26Snow
38 °Snow

Merrimack, Friday, 13 November

Snow. High 38°, low 34°.

Pressure29.56 inHg
Wind10.8 mph N
Humidity84%
Visibility4.4 mi
Dew point30°
Sat, 1444° / 33°0Overcast
44 °Overcast

Merrimack, Saturday, 14 November

Overcast. High 44°, low 33°.

Pressure29.68 inHg
Wind12.7 mph NW
Humidity68%
Visibility—
Dew point30°
Sun, 1545° / 37°0Overcast
45 °Overcast

Merrimack, Sunday, 15 November

Overcast. High 45°, low 37°.

Pressure29.94 inHg
Wind13.8 mph NW
Humidity64%
Visibility—
Dew point32°
Mon, 1649° / 33°0Clear
49 °Clear

Merrimack, Monday, 16 November

Clear. High 49°, low 33°.

Pressure30.24 inHg
Wind7.9 mph NW
Humidity59%
Visibility—
Dew point29°
Tue, 1751° / 31°0Clear
51 °Clear

Merrimack, Tuesday, 17 November

Clear. High 51°, low 31°.

Pressure30.42 inHg
Wind4.1 mph NW
Humidity47%
Visibility—
Dew point24°
Wed, 1852° / 31°0Clear
52 °Clear

Merrimack, Wednesday, 18 November

Clear. High 52°, low 31°.

Pressure30.42 inHg
Wind5.5 mph N
Humidity41%
Visibility—
Dew point21°
Thu, 1956° / 33°0Clear
56 °Clear

Merrimack, Thursday, 19 November

Clear. High 56°, low 33°.

Pressure30.45 inHg
Wind3.9 mph NW
Humidity49%
Visibility—
Dew point28°
Fri, 2058° / 37°0Overcast
58 °Overcast

Merrimack, Friday, 20 November

Overcast. High 58°, low 37°.

Pressure30.30 inHg
Wind8.6 mph W
Humidity45%
Visibility—
Dew point28°
Sat, 2154° / 40°0Overcast
54 °Overcast

Merrimack, Saturday, 21 November

Overcast. High 54°, low 40°.

Pressure30.24 inHg
Wind9.2 mph NW
Humidity65%
Visibility—
Dew point40°
Sun, 2246° / 33°0Clear
46 °Clear

Merrimack, Sunday, 22 November

Clear. High 46°, low 33°.

Pressure30.21 inHg
Wind9.1 mph NW
Humidity53%
Visibility—
Dew point26°
Mon, 2349° / 31°0Clear
49 °Clear

Merrimack, Monday, 23 November

Clear. High 49°, low 31°.

Pressure30.24 inHg
Wind5.4 mph NW
Humidity50%
Visibility—
Dew point24°
Tue, 2454° / 36°0.01Light rain
54 °Light rain

Merrimack, Tuesday, 24 November

Light rain. High 54°, low 36°.

Pressure29.97 inHg
Wind11.1 mph SW
Humidity81%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0739° / 25°0.13Climate normal
39 °Climate normal

Merrimack, Monday, 7 December

Climate normal for this date — 60-year average.

Average high39°
Average low25°
Average precipitation0.13 in
Chance of precipitation37%
Record high66° (1998)
Record low2° (1964)
Tue, 0836° / 23°0.09Climate normal
36 °Climate normal

Merrimack, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high36°
Average low23°
Average precipitation0.09 in
Chance of precipitation28%
Record high54° (2022)
Record low-8° (1964)

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.