Monthly outlook for New Castle, NH: average high 54.5°, average low 40.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 2 November (67.5°), the coolest 1 November (33°).
54.5°/40.9°
Average high / low
+1.8°
Above normal
2 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
59.2°
52.8°
+3.6°
8 November – 17 November
46.7°
48.1°
-0.8°
18 November – 27 November
at normal
44.7°
—
October records over 66 years
82.2°3 October 2023All-time high
29.5°24 October 1969All-time low
Fri, 3064° / 50°0.01
64 °
New Castle, Friday, 30 October
Light rain. High 64°, low 50°.
Pressure29.94 inHg
Wind11.6 mph NW
Humidity51%
Visibility6.2 mi
Dew point44°
Sat, 3150° / 37°0
50 °
New Castle, Saturday, 31 October
Partly cloudy. High 50°, low 37°.
Pressure30.36 inHg
Wind11.7 mph NW
Humidity51%
Visibility6.2 mi
Dew point26°
Sun, 0155° / 33°0
55 °
New Castle, Sunday, 1 November
Clear. High 55°, low 33°.
Pressure30.45 inHg
Wind7.9 mph W
Humidity47%
Visibility6.2 mi
Dew point33°
Mon, 0267° / 39°0
67 °
New Castle, Monday, 2 November
Clear. High 67°, low 39°.
Pressure30.24 inHg
Wind8.5 mph W
Humidity52%
Visibility—
Dew point38°
Tue, 0361° / 46°0
61 °
New Castle, Tuesday, 3 November
Overcast. High 61°, low 46°.
Pressure30.33 inHg
Wind5.6 mph SE
Humidity65%
Visibility—
Dew point47°
Wed, 0451° / 48°0
51 °
New Castle, Wednesday, 4 November
Overcast. High 51°, low 48°.
Pressure30.53 inHg
Wind9.3 mph SE
Humidity77%
Visibility—
Dew point44°
Thu, 0556° / 43°0.01
56 °
New Castle, Thursday, 5 November
Light rain. High 56°, low 43°.
Pressure30.24 inHg
Wind9.2 mph S
Humidity74%
Visibility—
Dew point44°
Fri, 0660° / 55°0.57
60 °
New Castle, Friday, 6 November
Rain. High 60°, low 55°.
Pressure29.71 inHg
Wind19.5 mph S
Humidity98%
Visibility—
Dew point58°
Sat, 0762° / 42°0.25
62 °
New Castle, Saturday, 7 November
Light rain. High 62°, low 42°.
Pressure29.50 inHg
Wind11.3 mph NW
Humidity85%
Visibility—
Dew point56°
Sun, 0844° / 35°0.03
44 °
New Castle, Sunday, 8 November
Light rain. High 44°, low 35°.
Pressure29.85 inHg
Wind20.9 mph NW
Humidity51%
Visibility—
Dew point24°
Mon, 0948° / 36°0
48 °
New Castle, Monday, 9 November
Partly cloudy. High 48°, low 36°.
Pressure29.88 inHg
Wind19.3 mph NW
Humidity52%
Visibility—
Dew point25°
Tue, 1048° / 35°0
48 °
New Castle, Tuesday, 10 November
Overcast. High 48°, low 35°.
Pressure30.06 inHg
Wind7.8 mph NW
Humidity48%
Visibility—
Dew point25°
Wed, 1147° / 40°0
47 °
New Castle, Wednesday, 11 November
Partly cloudy. High 47°, low 40°.
Pressure30.00 inHg
Wind9.5 mph N
Humidity68%
Visibility—
Dew point35°
Thu, 1244° / 36°0
44 °
New Castle, Thursday, 12 November
Overcast. High 44°, low 36°.
Pressure29.80 inHg
Wind15.5 mph N
Humidity71%
Visibility—
Dew point33°
Fri, 1349° / 37°0
49 °
New Castle, Friday, 13 November
Overcast. High 49°, low 37°.
Pressure29.83 inHg
Wind9.7 mph NW
Humidity65%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1447° / 37°0.12
47 °
New Castle, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.12 in
Chance of precipitation30%
Record high63° (1973)
Record low19° (1986)
Sun, 1548° / 37°0.13
48 °
New Castle, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.13 in
Chance of precipitation37%
Record high65° (1993)
Record low21° (2018)
Mon, 1647° / 37°0.16
47 °
New Castle, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.16 in
Chance of precipitation37%
Record high62° (2001)
Record low22° (1967)
Tue, 1746° / 36°0.15
46 °
New Castle, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.15 in
Chance of precipitation30%
Record high62° (2023)
Record low22° (1967)
Wed, 1846° / 36°0.08
46 °
New Castle, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.08 in
Chance of precipitation25%
Record high64° (1987)
Record low26° (2020)
Thu, 1946° / 35°0.07
46 °
New Castle, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.07 in
Chance of precipitation23%
Record high61° (1991)
Record low22° (1986)
Fri, 2046° / 35°0.14
46 °
New Castle, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.14 in
Chance of precipitation35%
Record high66° (1985)
Record low20° (1986)
Sat, 2145° / 34°0.13
45 °
New Castle, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.13 in
Chance of precipitation33%
Record high60° (1991)
Record low19° (1987)
Sun, 2244° / 35°0.17
44 °
New Castle, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.17 in
Chance of precipitation40%
Record high59° (1992)
Record low10° (2018)
Mon, 2343° / 33°0.14
43 °
New Castle, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.14 in
Chance of precipitation28%
Record high63° (1999)
Record low10° (2018)
Tue, 2444° / 33°0.09
44 °
New Castle, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.09 in
Chance of precipitation30%
Record high60° (1979)
Record low17° (1989)
Wed, 2544° / 34°0.15
44 °
New Castle, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.15 in
Chance of precipitation28%
Record high60° (1979)
Record low18° (2013)
Thu, 2645° / 35°0.21
45 °
New Castle, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.21 in
Chance of precipitation47%
Record high60° (2001)
Record low18° (1978)
Fri, 2745° / 34°0.16
45 °
New Castle, Friday, 27 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.16 in
Chance of precipitation38%
Record high59° (1979)
Record low16° (1978)
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 New Castle, 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 New Castle, 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.