Monthly outlook for Castanea, PA: average high 60.4°, average low 42.8°. That is 2.5° above the climate normal for October. Precipitation is expected on 4 days (about 3.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (80.3°), the coolest 19 October (30°).
60.4°/42.8°
Average high / low
+2.5°
Above normal
4 / 5
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
63.1°
57°
+3.3°
20 October – 29 October
56°
53.4°
+1.4°
30 October – 8 November
at normal
50.2°
—
October records over 66 years
82.6°8 October 2007All-time high
13.8°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Cummings (15 mi).
Sun, 1161° / 49°1.68
61 °
Castanea, Sunday, 11 October
Heavy rain. High 61°, low 49°.
Pressure30.18 inHg
Wind8.2 mph E
Humidity99%
Visibility1.0 mi
Dew point55°
Mon, 1272° / 51°0.03
72 °
Castanea, Monday, 12 October
Light rain. High 72°, low 51°.
Pressure29.85 inHg
Wind7.8 mph N
Humidity70%
Visibility6.2 mi
Dew point57°
Tue, 1380° / 54°0.01
80 °
Castanea, Tuesday, 13 October
Light rain. High 80°, low 54°.
Pressure29.85 inHg
Wind7.2 mph SW
Humidity68%
Visibility6.2 mi
Dew point62°
Wed, 1478° / 60°0
78 °
Castanea, Wednesday, 14 October
Overcast. High 78°, low 60°.
Pressure29.91 inHg
Wind9 mph W
Humidity61%
Visibility6.2 mi
Dew point60°
Thu, 1561° / 49°0
61 °
Castanea, Thursday, 15 October
Overcast. High 61°, low 49°.
Pressure30.27 inHg
Wind9 mph N
Humidity54%
Visibility—
Dew point42°
Fri, 1662° / 48°1.2
62 °
Castanea, Friday, 16 October
Heavy rain. High 62°, low 48°.
Pressure29.94 inHg
Wind7.5 mph SW
Humidity96%
Visibility—
Dew point53°
Sat, 1758° / 40°0.14
58 °
Castanea, Saturday, 17 October
Light rain. High 58°, low 40°.
Pressure29.94 inHg
Wind8.3 mph W
Humidity93%
Visibility—
Dew point46°
Sun, 1844° / 32°0
44 °
Castanea, Sunday, 18 October
Partly cloudy. High 44°, low 32°.
Pressure30.15 inHg
Wind12 mph NW
Humidity60%
Visibility—
Dew point31°
Mon, 1949° / 30°0
49 °
Castanea, Monday, 19 October
Clear. High 49°, low 30°.
Pressure30.62 inHg
Wind9.9 mph N
Humidity46%
Visibility—
Dew point21°
Tue, 2057° / 33°0
57 °
Castanea, Tuesday, 20 October
Clear. High 57°, low 33°.
Pressure30.56 inHg
Wind4 mph SE
Humidity43%
Visibility—
Dew point27°
Wed, 2154° / 37°0
54 °
Castanea, Wednesday, 21 October
Overcast. High 54°, low 37°.
Pressure30.47 inHg
Wind9.6 mph S
Humidity60%
Visibility—
Dew point35°
Thu, 2253° / 45°0.02
53 °
Castanea, Thursday, 22 October
Light rain. High 53°, low 45°.
Pressure30.18 inHg
Wind4.7 mph SW
Humidity83%
Visibility—
Dew point47°
Fri, 2362° / 43°0
62 °
Castanea, Friday, 23 October
Partly cloudy. High 62°, low 43°.
Pressure30.03 inHg
Wind12.6 mph W
Humidity65%
Visibility—
Dew point43°
Sat, 2456° / 37°0
56 °
Castanea, Saturday, 24 October
Overcast. High 56°, low 37°.
Pressure30.12 inHg
Wind11.7 mph NW
Humidity67%
Visibility—
Dew point36°
Sun, 2554° / 35°0.05
54 °
Castanea, Sunday, 25 October
Light rain. High 54°, low 35°.
Pressure30.15 inHg
Wind5.7 mph SE
Humidity60%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2653° / 39°0.09
53 °
Castanea, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (1963)
Record low27° (1987)
Tue, 2753° / 39°0.15
53 °
Castanea, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.15 in
Chance of precipitation27%
Record high74° (1963)
Record low26° (1976)
Wed, 2853° / 37°0.09
53 °
Castanea, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.09 in
Chance of precipitation35%
Record high71° (1984)
Record low23° (1976)
Thu, 2951° / 36°0.17
51 °
Castanea, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.17 in
Chance of precipitation30%
Record high66° (1989)
Record low24° (1965)
Fri, 3051° / 35°0.12
51 °
Castanea, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.12 in
Chance of precipitation27%
Record high71° (2024)
Record low26° (1983)
Sat, 3151° / 36°0.1
51 °
Castanea, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation28%
Record high74° (2024)
Record low14° (2002)
Sun, 0152° / 38°0.09
52 °
Castanea, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (1974)
Record low24° (2002)
Mon, 0252° / 38°0.14
52 °
Castanea, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation35%
Record high71° (1982)
Record low20° (1993)
Tue, 0352° / 37°0.07
52 °
Castanea, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation32%
Record high69° (2003)
Record low26° (1984)
Wed, 0449° / 36°0.09
49 °
Castanea, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation27%
Record high69° (2003)
Record low22° (2002)
Thu, 0549° / 36°0.1
49 °
Castanea, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation38%
Record high68° (2022)
Record low19° (1991)
Fri, 0649° / 36°0.07
49 °
Castanea, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (2022)
Record low24° (1991)
Sat, 0748° / 34°0.09
48 °
Castanea, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (2020)
Record low24° (1962)
Sun, 0848° / 34°0.13
48 °
Castanea, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.13 in
Chance of precipitation22%
Record high69° (2020)
Record low21° (2019)
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 Castanea, PA 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 Castanea, PA 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.