Monthly outlook for Derry, NH: average high 63.9°, average low 44.7°. That is 2.3° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 23 October (70.4°), the coolest 18 October (36.2°).
63.9°/44.7°
Average high / low
+2.3°
Above normal
6 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
63.4°
60.6°
+1.6°
18 October – 27 October
64.5°
57.2°
+4.1°
28 October – 6 November
at normal
53.6°
—
October records over 66 years
84.9°5 October 2007All-time high
24.1°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Manchester (11 mi).
Fri, 0967° / 46°0
67 °
Derry, Friday, 9 October
Mostly clear. High 67°, low 46°.
Pressure30.03 inHg
Wind12.1 mph W
Humidity46%
Visibility6.2 mi
Dew point41°
Sat, 1060° / 43°0
60 °
Derry, Saturday, 10 October
Clear. High 60°, low 43°.
Pressure30.45 inHg
Wind7.7 mph NW
Humidity40%
Visibility6.2 mi
Dew point32°
Sun, 1164° / 42°0.03
64 °
Derry, Sunday, 11 October
Light rain. High 64°, low 42°.
Pressure30.36 inHg
Wind5.9 mph S
Humidity56%
Visibility6.2 mi
Dew point45°
Mon, 1268° / 52°0.13
68 °
Derry, Monday, 12 October
Light rain. High 68°, low 52°.
Pressure29.80 inHg
Wind1 mph N
Humidity76%
Visibility6.2 mi
Dew point56°
Tue, 1367° / 49°0.08
67 °
Derry, Tuesday, 13 October
Light rain. High 67°, low 49°.
Pressure29.65 inHg
Wind11.6 mph NW
Humidity92%
Visibility—
Dew point59°
Wed, 1458° / 42°0
58 °
Derry, Wednesday, 14 October
Clear. High 58°, low 42°.
Pressure29.94 inHg
Wind12.5 mph NW
Humidity45%
Visibility—
Dew point30°
Thu, 1558° / 39°0
58 °
Derry, Thursday, 15 October
Partly cloudy. High 58°, low 39°.
Pressure30.30 inHg
Wind5.6 mph NW
Humidity43%
Visibility—
Dew point29°
Fri, 1664° / 41°0.44
64 °
Derry, Friday, 16 October
Rain. High 64°, low 41°.
Pressure30.18 inHg
Wind13.7 mph SW
Humidity99%
Visibility—
Dew point47°
Sat, 1761° / 39°0
61 °
Derry, Saturday, 17 October
Partly cloudy. High 61°, low 39°.
Pressure30.06 inHg
Wind16.6 mph NW
Humidity47%
Visibility—
Dew point29°
Sun, 1853° / 36°0
53 °
Derry, Sunday, 18 October
Clear. High 53°, low 36°.
Pressure30.47 inHg
Wind10.2 mph NW
Humidity36%
Visibility—
Dew point20°
Mon, 1963° / 40°0
63 °
Derry, Monday, 19 October
Overcast. High 63°, low 40°.
Pressure30.39 inHg
Wind7.2 mph W
Humidity40%
Visibility—
Dew point30°
Tue, 2064° / 45°0
64 °
Derry, Tuesday, 20 October
Overcast. High 64°, low 45°.
Pressure30.30 inHg
Wind5.7 mph E
Humidity46%
Visibility—
Dew point37°
Wed, 2167° / 50°0.01
67 °
Derry, Wednesday, 21 October
Light rain. High 67°, low 50°.
Pressure30.18 inHg
Wind4.7 mph SE
Humidity58%
Visibility—
Dew point45°
Thu, 2270° / 52°0.04
70 °
Derry, Thursday, 22 October
Light rain. High 70°, low 52°.
Pressure30.09 inHg
Wind7.2 mph W
Humidity72%
Visibility—
Dew point54°
Fri, 2370° / 48°0.54
70 °
Derry, Friday, 23 October
Heavy rain. High 70°, low 48°.
Pressure29.94 inHg
Wind15.4 mph S
Humidity82%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2457° / 42°0.13
57 °
Derry, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.13 in
Chance of precipitation32%
Record high77° (1963)
Record low26° (1969)
Sun, 2556° / 42°0.14
56 °
Derry, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high80° (1963)
Record low29° (2003)
Mon, 2655° / 42°0.14
55 °
Derry, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.14 in
Chance of precipitation27%
Record high80° (1963)
Record low29° (2018)
Tue, 2755° / 41°0.12
55 °
Derry, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.12 in
Chance of precipitation22%
Record high80° (1963)
Record low28° (1976)
Wed, 2855° / 40°0.15
55 °
Derry, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.15 in
Chance of precipitation32%
Record high77° (2023)
Record low27° (1974)
Thu, 2953° / 39°0.12
53 °
Derry, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation28%
Record high71° (1989)
Record low28° (1965)
Fri, 3053° / 38°0.16
53 °
Derry, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation27%
Record high71° (1989)
Record low28° (1962)
Sat, 3154° / 38°0.1
54 °
Derry, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (2024)
Record low24° (2011)
Sun, 0155° / 40°0.11
55 °
Derry, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (1974)
Record low28° (2020)
Mon, 0255° / 40°0.11
55 °
Derry, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high70° (1982)
Record low26° (1965)
Tue, 0354° / 39°0.19
54 °
Derry, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.19 in
Chance of precipitation35%
Record high71° (1990)
Record low23° (2002)
Wed, 0453° / 38°0.07
53 °
Derry, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (1987)
Record low27° (2002)
Thu, 0553° / 39°0.17
53 °
Derry, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.17 in
Chance of precipitation35%
Record high74° (2022)
Record low27° (1965)
Fri, 0651° / 39°0.13
51 °
Derry, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation37%
Record high75° (2024)
Record low27° (2012)
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 Derry, 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 Derry, 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.