Monthly outlook for Northumberland, NH: average high 48.1°, average low 29.5°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 26 October (60°), the coolest 27 October (22.6°).
48.1°/29.5°
Average high / low
+1.1°
Above normal
3 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
50.7°
47.3°
+1.9°
5 November – 14 November
43.7°
42.5°
+0.6°
15 November – 24 November
at normal
37.3°
—
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).
Tue, 2746° / 23°0
46 °
Northumberland, Tuesday, 27 October
Clear. High 46°, low 23°.
Pressure30.42 inHg
Wind6.2 mph NW
Humidity68%
Visibility6.2 mi
Dew point20°
Wed, 2846° / 25°0
46 °
Northumberland, Wednesday, 28 October
Clear. High 46°, low 25°.
Pressure30.45 inHg
Wind3.6 mph SW
Humidity60%
Visibility6.2 mi
Dew point23°
Thu, 2959° / 35°0
59 °
Northumberland, Thursday, 29 October
Overcast. High 59°, low 35°.
Pressure30.12 inHg
Wind6.4 mph S
Humidity65%
Visibility6.2 mi
Dew point42°
Fri, 3058° / 42°0.03
58 °
Northumberland, Friday, 30 October
Light rain. High 58°, low 42°.
Pressure29.97 inHg
Wind9.9 mph W
Humidity98%
Visibility—
Dew point50°
Sat, 3149° / 33°0
49 °
Northumberland, Saturday, 31 October
Partly cloudy. High 49°, low 33°.
Pressure30.30 inHg
Wind8.8 mph W
Humidity58%
Visibility—
Dew point31°
Sun, 0153° / 31°0
53 °
Northumberland, Sunday, 1 November
Clear. High 53°, low 31°.
Pressure30.30 inHg
Wind7.9 mph SW
Humidity48%
Visibility—
Dew point26°
Mon, 0254° / 38°0
54 °
Northumberland, Monday, 2 November
Overcast. High 54°, low 38°.
Pressure30.09 inHg
Wind3.7 mph NE
Humidity53%
Visibility—
Dew point33°
Tue, 0343° / 30°0.74
43 °
Northumberland, Tuesday, 3 November
Snow. High 43°, low 30°.
Pressure29.83 inHg
Wind5.3 mph N
Humidity96%
Visibility—
Dew point41°
Wed, 0439° / 27°0
39 °
Northumberland, Wednesday, 4 November
Overcast. High 39°, low 27°.
Pressure30.24 inHg
Wind6 mph N
Humidity47%
Visibility—
Dew point16°
Thu, 0542° / 27°0
42 °
Northumberland, Thursday, 5 November
Clear. High 42°, low 27°.
Pressure30.47 inHg
Wind5.4 mph N
Humidity35%
Visibility—
Dew point11°
Fri, 0645° / 27°0
45 °
Northumberland, Friday, 6 November
Clear. High 45°, low 27°.
Pressure30.39 inHg
Wind2.2 mph W
Humidity39%
Visibility—
Dew point16°
Sat, 0748° / 28°0
48 °
Northumberland, Saturday, 7 November
Clear. High 48°, low 28°.
Pressure30.24 inHg
Wind2.9 mph SW
Humidity38%
Visibility—
Dew point17°
Sun, 0854° / 32°0.12
54 °
Northumberland, Sunday, 8 November
Light rain. High 54°, low 32°.
Pressure29.91 inHg
Wind5.7 mph SW
Humidity45%
Visibility—
Dew point24°
Mon, 0939° / 26°0.15
39 °
Northumberland, Monday, 9 November
Snow. High 39°, low 26°.
Pressure29.83 inHg
Wind8.9 mph NW
Humidity95%
Visibility—
Dew point34°
Tue, 1035° / 23°0
35 °
Northumberland, Tuesday, 10 November
Overcast. High 35°, low 23°.
Pressure30.00 inHg
Wind8.3 mph W
Humidity57%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2436° / 22°0.08
36 °
Northumberland, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.08 in
Chance of precipitation45%
Record high57° (1999)
Record low-17° (1989)
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.