Monthly outlook for Merrimack, NH: average high 56.9°, average low 42.4°. That is 4.2° above the climate normal for November. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 4 November (75.4°), the coolest 13 November (28.4°).
56.9°/42.4°
Average high / low
+4.2°
Above normal
6 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
60.2°
51.1°
+5.1°
13 November – 22 November
51.4°
45.6°
+3.2°
23 November – 2 December
at normal
43.1°
—
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).
Wed, 0475° / 53°0
75 °
Merrimack, Wednesday, 4 November
Partly cloudy. High 75°, low 53°.
Pressure30.06 inHg
Wind7 mph SW
Humidity45%
Visibility6.2 mi
Dew point51°
Thu, 0570° / 55°0.03
70 °
Merrimack, Thursday, 5 November
Light rain. High 70°, low 55°.
Pressure29.91 inHg
Wind13.1 mph SW
Humidity68%
Visibility6.2 mi
Dew point59°
Fri, 0669° / 59°0.72
69 °
Merrimack, Friday, 6 November
Rain. High 69°, low 59°.
Pressure29.88 inHg
Wind4.8 mph S
Humidity77%
Visibility6.2 mi
Dew point61°
Sat, 0759° / 53°0.28
59 °
Merrimack, Saturday, 7 November
Rain. High 59°, low 53°.
Pressure29.85 inHg
Wind6.8 mph N
Humidity92%
Visibility—
Dew point54°
Sun, 0859° / 49°0.09
59 °
Merrimack, Sunday, 8 November
Light rain. High 59°, low 49°.
Pressure29.74 inHg
Wind10.5 mph NW
Humidity63%
Visibility—
Dew point42°
Mon, 0950° / 37°0
50 °
Merrimack, Monday, 9 November
Mostly clear. High 50°, low 37°.
Pressure29.83 inHg
Wind10.2 mph W
Humidity54%
Visibility—
Dew point33°
Tue, 1055° / 33°0
55 °
Merrimack, Tuesday, 10 November
Overcast. High 55°, low 33°.
Pressure30.00 inHg
Wind12.9 mph SW
Humidity52%
Visibility—
Dew point29°
Wed, 1150° / 34°0
50 °
Merrimack, Wednesday, 11 November
Overcast. High 50°, low 34°.
Pressure30.03 inHg
Wind12.7 mph NW
Humidity49%
Visibility—
Dew point28°
Thu, 1244° / 30°0.05
44 °
Merrimack, Thursday, 12 November
Light rain. High 44°, low 30°.
Pressure30.18 inHg
Wind3.5 mph NW
Humidity49%
Visibility—
Dew point21°
Fri, 1344° / 28°0.03
44 °
Merrimack, Friday, 13 November
Light snow. High 44°, low 28°.
Pressure30.15 inHg
Wind5.8 mph NW
Humidity62%
Visibility—
Dew point26°
Sat, 1453° / 31°0
53 °
Merrimack, Saturday, 14 November
Clear. High 53°, low 31°.
Pressure30.18 inHg
Wind8.9 mph W
Humidity51%
Visibility—
Dew point27°
Sun, 1560° / 36°0
60 °
Merrimack, Sunday, 15 November
Clear. High 60°, low 36°.
Pressure30.18 inHg
Wind4.2 mph W
Humidity46%
Visibility—
Dew point30°
Mon, 1654° / 38°0
54 °
Merrimack, Monday, 16 November
Overcast. High 54°, low 38°.
Pressure30.12 inHg
Wind9.4 mph NE
Humidity52%
Visibility—
Dew point31°
Tue, 1749° / 47°0.95
49 °
Merrimack, Tuesday, 17 November
Rain. High 49°, low 47°.
Pressure29.47 inHg
Wind14 mph NE
Humidity96%
Visibility—
Dew point47°
Wed, 1848° / 44°0.09
48 °
Merrimack, Wednesday, 18 November
Light rain. High 48°, low 44°.
Pressure29.50 inHg
Wind13.5 mph NW
Humidity83%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1945° / 31°0.06
45 °
Merrimack, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high63° (1991)
Record low13° (1986)
Fri, 2045° / 31°0.14
45 °
Merrimack, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.14 in
Chance of precipitation35%
Record high69° (1991)
Record low6° (1986)
Sat, 2144° / 30°0.12
44 °
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°0.14
43 °
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°0.13
43 °
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°0.07
43 °
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°0.15
44 °
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°0.2
44 °
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°0.14
44 °
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°0.18
44 °
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°0.07
43 °
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°0.11
42 °
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°0.13
42 °
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°0.12
42 °
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)
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.