As of 11:03 EST

Weather in Merrimack, NH

43°Current weather

Merrimack, Saturday, 14 November, 11:03

Overcast. Feels like 37°. High 43°, low 32°.

Pressure29.65 inHg
Wind9.2 mph NW
Humidity67%
Visibility6.2 mi
Dew point32°

Monthly outlook for Merrimack, NH: average high 51.6°, average low 35°. That is 3.8° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 November (62.4°), the coolest 25 November (27°).

51.6°/35°
Average high / low
+3.8°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 November – 23 November52.2°45.2°+3.9°
24 November – 3 December50.7°43°+4.3°
4 December – 13 Decemberat normal38.2°—

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, 1545° / 35°0Overcast
45 °Overcast

Merrimack, Sunday, 15 November

Overcast. High 45°, low 35°.

Pressure30.00 inHg
Wind12.8 mph NW
Humidity56%
Visibility6.2 mi
Dew point27°
Mon, 1646° / 33°0Overcast
46 °Overcast

Merrimack, Monday, 16 November

Overcast. High 46°, low 33°.

Pressure30.33 inHg
Wind8.8 mph NW
Humidity59%
Visibility6.2 mi
Dew point30°
Tue, 1754° / 32°0Clear
54 °Clear

Merrimack, Tuesday, 17 November

Clear. High 54°, low 32°.

Pressure30.36 inHg
Wind5 mph W
Humidity49%
Visibility6.2 mi
Dew point34°
Wed, 1860° / 39°0Partly cloudy
60 °Partly cloudy

Merrimack, Wednesday, 18 November

Partly cloudy. High 60°, low 39°.

Pressure30.33 inHg
Wind8.9 mph W
Humidity45%
Visibility—
Dew point32°
Thu, 1962° / 39°0Mostly clear
62 °Mostly clear

Merrimack, Thursday, 19 November

Mostly clear. High 62°, low 39°.

Pressure30.33 inHg
Wind7.1 mph NW
Humidity42%
Visibility—
Dew point30°
Fri, 2059° / 41°0Clear
59 °Clear

Merrimack, Friday, 20 November

Clear. High 59°, low 41°.

Pressure30.12 inHg
Wind11.2 mph W
Humidity58%
Visibility—
Dew point40°
Sat, 2150° / 36°0Clear
50 °Clear

Merrimack, Saturday, 21 November

Clear. High 50°, low 36°.

Pressure30.42 inHg
Wind4.2 mph NW
Humidity64%
Visibility—
Dew point33°
Sun, 2254° / 37°0Overcast
54 °Overcast

Merrimack, Sunday, 22 November

Overcast. High 54°, low 37°.

Pressure30.12 inHg
Wind10.1 mph S
Humidity65%
Visibility—
Dew point38°
Mon, 2349° / 34°0Overcast
49 °Overcast

Merrimack, Monday, 23 November

Overcast. High 49°, low 34°.

Pressure29.65 inHg
Wind13.8 mph W
Humidity55%
Visibility—
Dew point31°
Tue, 2438° / 29°0Clear
38 °Clear

Merrimack, Tuesday, 24 November

Clear. High 38°, low 29°.

Pressure30.00 inHg
Wind14.7 mph NW
Humidity40%
Visibility—
Dew point12°
Wed, 2544° / 27°0Partly cloudy
44 °Partly cloudy

Merrimack, Wednesday, 25 November

Partly cloudy. High 44°, low 27°.

Pressure30.42 inHg
Wind7.9 mph NW
Humidity37%
Visibility—
Dew point13°
Thu, 2650° / 30°0Overcast
50 °Overcast

Merrimack, Thursday, 26 November

Overcast. High 50°, low 30°.

Pressure30.42 inHg
Wind9.7 mph SW
Humidity46%
Visibility—
Dew point22°
Fri, 2752° / 34°0.01Light rain
52 °Light rain

Merrimack, Friday, 27 November

Light rain. High 52°, low 34°.

Pressure30.42 inHg
Wind4.4 mph NW
Humidity55%
Visibility—
Dew point30°
Sat, 2858° / 37°0Partly cloudy
58 °Partly cloudy

Merrimack, Saturday, 28 November

Partly cloudy. High 58°, low 37°.

Pressure30.42 inHg
Wind10.4 mph S
Humidity66%
Visibility—
Dew point37°
Sun, 2962° / 46°0.23Light rain
62 °Light rain

Merrimack, Sunday, 29 November

Light rain. High 62°, low 46°.

Pressure29.91 inHg
Wind16.1 mph W
Humidity81%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 0937° / 22°0.17Climate normal
37 °Climate normal

Merrimack, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high37°
Average low22°
Average precipitation0.17 in
Chance of precipitation38%
Record high56° (1991)
Record low3° (1968)
Thu, 1038° / 24°0.08Climate normal
38 °Climate normal

Merrimack, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high38°
Average low24°
Average precipitation0.08 in
Chance of precipitation37%
Record high59° (2023)
Record low1° (1968)
Fri, 1138° / 24°0.17Climate normal
38 °Climate normal

Merrimack, Friday, 11 December

Climate normal for this date — 60-year average.

Average high38°
Average low24°
Average precipitation0.17 in
Chance of precipitation35%
Record high58° (1966)
Record low-3° (1977)
Sat, 1237° / 23°0.16Climate normal
37 °Climate normal

Merrimack, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high37°
Average low23°
Average precipitation0.16 in
Chance of precipitation38%
Record high60° (1979)
Record low-5° (1977)
Sun, 1337° / 23°0.08Climate normal
37 °Climate normal

Merrimack, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation27%
Record high57° (1984)
Record low1° (1995)

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.