Monthly outlook for New Castle, NH: average high 54.5°, average low 39.1°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 26 October (69.3°), the coolest 28 October (22.6°).
54.5°/39.1°
Average high / low
+1.1°
Above normal
4 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
57°
53.5°
+1.9°
5 November – 14 November
50.4°
49.6°
+0.4°
15 November – 24 November
at normal
45.4°
—
October records over 66 years
82.2°3 October 2023All-time high
29.5°24 October 1969All-time low
Tue, 2754° / 30°0
54 °
New Castle, Tuesday, 27 October
Clear. High 54°, low 30°.
Pressure30.39 inHg
Wind3 mph N
Humidity50%
Visibility6.2 mi
Dew point27°
Wed, 2855° / 23°0
55 °
New Castle, Wednesday, 28 October
Overcast. High 55°, low 23°.
Pressure30.47 inHg
Wind3.3 mph S
Humidity56%
Visibility6.2 mi
Dew point34°
Thu, 2965° / 41°0
65 °
New Castle, Thursday, 29 October
Clear. High 65°, low 41°.
Pressure30.18 inHg
Wind6.6 mph SW
Humidity61%
Visibility6.2 mi
Dew point47°
Fri, 3069° / 48°0
69 °
New Castle, Friday, 30 October
Clear. High 69°, low 48°.
Pressure29.94 inHg
Wind10.8 mph W
Humidity52%
Visibility6.2 mi
Dew point48°
Sat, 3156° / 40°0
56 °
New Castle, Saturday, 31 October
Clear. High 56°, low 40°.
Pressure30.33 inHg
Wind11.1 mph NW
Humidity48%
Visibility—
Dew point32°
Sun, 0155° / 36°0
55 °
New Castle, Sunday, 1 November
Light rain. High 55°, low 36°.
Pressure30.42 inHg
Wind12.7 mph S
Humidity78%
Visibility—
Dew point40°
Mon, 0256° / 51°0.48
56 °
New Castle, Monday, 2 November
Rain. High 56°, low 51°.
Pressure30.00 inHg
Wind8.6 mph S
Humidity94%
Visibility—
Dew point52°
Tue, 0347° / 38°0.11
47 °
New Castle, Tuesday, 3 November
Light rain. High 47°, low 38°.
Pressure29.97 inHg
Wind22.1 mph NE
Humidity52%
Visibility—
Dew point26°
Wed, 0444° / 34°0
44 °
New Castle, Wednesday, 4 November
Partly cloudy. High 44°, low 34°.
Pressure30.53 inHg
Wind11.4 mph N
Humidity51%
Visibility—
Dew point25°
Thu, 0552° / 44°1.02
52 °
New Castle, Thursday, 5 November
Rain. High 52°, low 44°.
Pressure30.24 inHg
Wind23.1 mph E
Humidity78%
Visibility—
Dew point42°
Fri, 0650° / 39°0.04
50 °
New Castle, Friday, 6 November
Light rain. High 50°, low 39°.
Pressure29.71 inHg
Wind18 mph W
Humidity94%
Visibility—
Dew point44°
Sat, 0744° / 37°0.02
44 °
New Castle, Saturday, 7 November
Light rain. High 44°, low 37°.
Pressure30.21 inHg
Wind11.4 mph N
Humidity74%
Visibility—
Dew point34°
Sun, 0848° / 42°0
48 °
New Castle, Sunday, 8 November
Overcast. High 48°, low 42°.
Pressure30.33 inHg
Wind8.4 mph NE
Humidity61%
Visibility—
Dew point34°
Mon, 0954° / 40°0
54 °
New Castle, Monday, 9 November
Overcast. High 54°, low 40°.
Pressure30.15 inHg
Wind10.5 mph SW
Humidity69%
Visibility—
Dew point37°
Tue, 1054° / 47°0.17
54 °
New Castle, Tuesday, 10 November
Rain. High 54°, low 47°.
Pressure29.97 inHg
Wind15.7 mph SE
Humidity83%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1149° / 40°0.13
49 °
New Castle, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.13 in
Chance of precipitation47%
Record high71° (2020)
Record low24° (2017)
Thu, 1248° / 38°0.13
48 °
New Castle, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.13 in
Chance of precipitation38%
Record high71° (2022)
Record low25° (2019)
Fri, 1347° / 37°0.17
47 °
New Castle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.17 in
Chance of precipitation42%
Record high65° (1964)
Record low17° (2019)
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)
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.