Monthly outlook for Northumberland, NH: average high 50.1°, average low 34.4°. That is 2.1° above the climate normal for October. Precipitation is expected on 8 days (about 2.3 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 1 November (62.8°), the coolest 25 October (22.2°).
50.1°/34.4°
Average high / low
+2.1°
Above normal
8 / 6
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
53.5°
47.6°
+3.3°
4 November – 13 November
44.3°
43.2°
+0.6°
14 November – 23 November
at normal
37.7°
—
October records over 66 years
79.7°4 October 2023All-time high
10.6°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Lunenburg (12 mi).
Mon, 2656° / 35°0
56 °
Northumberland, Monday, 26 October
Overcast. High 56°, low 35°.
Pressure30.15 inHg
Wind6.5 mph W
Humidity64%
Visibility6.2 mi
Dew point40°
Tue, 2740° / 26°0
40 °
Northumberland, Tuesday, 27 October
Clear. High 40°, low 26°.
Pressure30.42 inHg
Wind7.2 mph NW
Humidity68%
Visibility6.2 mi
Dew point19°
Wed, 2845° / 26°0
45 °
Northumberland, Wednesday, 28 October
Clear. High 45°, low 26°.
Pressure30.50 inHg
Wind2.9 mph SW
Humidity64%
Visibility6.2 mi
Dew point23°
Thu, 2957° / 33°0.03
57 °
Northumberland, Thursday, 29 October
Light rain. High 57°, low 33°.
Pressure30.18 inHg
Wind9.1 mph SW
Humidity68%
Visibility—
Dew point36°
Fri, 3050° / 40°0.09
50 °
Northumberland, Friday, 30 October
Light rain. High 50°, low 40°.
Pressure30.15 inHg
Wind8.1 mph W
Humidity84%
Visibility—
Dew point44°
Sat, 3153° / 36°0
53 °
Northumberland, Saturday, 31 October
Partly cloudy. High 53°, low 36°.
Pressure30.45 inHg
Wind2.9 mph SW
Humidity67%
Visibility—
Dew point36°
Sun, 0163° / 45°0
63 °
Northumberland, Sunday, 1 November
Overcast. High 63°, low 45°.
Pressure30.27 inHg
Wind7.4 mph SW
Humidity70%
Visibility—
Dew point44°
Mon, 0257° / 52°0.88
57 °
Northumberland, Monday, 2 November
Rain. High 57°, low 52°.
Pressure29.71 inHg
Wind5.4 mph S
Humidity96%
Visibility—
Dew point54°
Tue, 0353° / 35°0.11
53 °
Northumberland, Tuesday, 3 November
Light rain. High 53°, low 35°.
Pressure29.88 inHg
Wind15.5 mph NW
Humidity87%
Visibility—
Dew point41°
Wed, 0450° / 32°0
50 °
Northumberland, Wednesday, 4 November
Clear. High 50°, low 32°.
Pressure30.27 inHg
Wind3.7 mph E
Humidity48%
Visibility—
Dew point24°
Thu, 0550° / 39°0.37
50 °
Northumberland, Thursday, 5 November
Rain. High 50°, low 39°.
Pressure29.59 inHg
Wind5.6 mph W
Humidity97%
Visibility—
Dew point43°
Fri, 0645° / 33°0.3
45 °
Northumberland, Friday, 6 November
Snow. High 45°, low 33°.
Pressure29.68 inHg
Wind11.3 mph NW
Humidity96%
Visibility—
Dew point38°
Sat, 0739° / 28°0.06
39 °
Northumberland, Saturday, 7 November
Snow. High 39°, low 28°.
Pressure29.77 inHg
Wind5.2 mph W
Humidity65%
Visibility—
Dew point25°
Sun, 0845° / 37°0.36
45 °
Northumberland, Sunday, 8 November
Rain. High 45°, low 37°.
Pressure29.09 inHg
Wind20.7 mph SW
Humidity92%
Visibility—
Dew point41°
Mon, 0936° / 33°0.09
36 °
Northumberland, Monday, 9 November
Light snow. High 36°, low 33°.
Pressure29.56 inHg
Wind9.5 mph W
Humidity89%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1044° / 30°0.12
44 °
Northumberland, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.12 in
Chance of precipitation43%
Record high65° (2020)
Record low12° (1992)
Wed, 1142° / 30°0.15
42 °
Northumberland, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.15 in
Chance of precipitation52%
Record high65° (2022)
Record low12° (2017)
Thu, 1241° / 28°0.14
41 °
Northumberland, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.14 in
Chance of precipitation40%
Record high62° (2022)
Record low10° (1971)
Fri, 1340° / 26°0.15
40 °
Northumberland, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.15 in
Chance of precipitation47%
Record high55° (1982)
Record low0° (2019)
Sat, 1439° / 26°0.1
39 °
Northumberland, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.1 in
Chance of precipitation45%
Record high59° (2011)
Record low-5° (1971)
Sun, 1540° / 26°0.14
40 °
Northumberland, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.14 in
Chance of precipitation48%
Record high58° (2008)
Record low-6° (2018)
Mon, 1639° / 26°0.13
39 °
Northumberland, Monday, 16 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.13 in
Chance of precipitation40%
Record high60° (2008)
Record low-3° (2019)
Tue, 1738° / 25°0.11
38 °
Northumberland, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.11 in
Chance of precipitation42%
Record high60° (2006)
Record low-2° (1972)
Wed, 1839° / 25°0.09
39 °
Northumberland, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.09 in
Chance of precipitation30%
Record high58° (2021)
Record low2° (1997)
Thu, 1938° / 24°0.06
38 °
Northumberland, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation33%
Record high59° (2016)
Record low1° (1972)
Fri, 2038° / 24°0.14
38 °
Northumberland, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.14 in
Chance of precipitation43%
Record high64° (1991)
Record low1° (1965)
Sat, 2136° / 23°0.14
36 °
Northumberland, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.14 in
Chance of precipitation40%
Record high57° (1991)
Record low6° (1967)
Sun, 2235° / 23°0.09
35 °
Northumberland, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.09 in
Chance of precipitation43%
Record high57° (1999)
Record low-2° (2018)
Mon, 2335° / 22°0.11
35 °
Northumberland, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.11 in
Chance of precipitation32%
Record high59° (1979)
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 Northumberland, 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 Northumberland, 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.