Monthly outlook for Mount Chestnut, PA: average high 61.1°, average low 42.9°. That is 2.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 14 October (73.3°), the coolest 26 October (35°).
61.1°/42.9°
Average high / low
+2.2°
Above normal
5 / 6
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
63.2°
58.1°
+2.8°
24 October – 2 November
57.7°
55.3°
+1.3°
3 November – 12 November
at normal
50.9°
—
October records over 66 years
84.9°1 October 2019All-time high
23.9°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Concord (11 mi).
Thu, 1571° / 51°0
71 °
Mount Chestnut, Thursday, 15 October
Partly cloudy. High 71°, low 51°.
Pressure30.15 inHg
Wind6.5 mph E
Humidity63%
Visibility6.2 mi
Dew point50°
Fri, 1672° / 50°0.11
72 °
Mount Chestnut, Friday, 16 October
Light rain. High 72°, low 50°.
Pressure29.77 inHg
Wind15.9 mph W
Humidity82%
Visibility3.7 mi
Dew point62°
Sat, 1749° / 39°0.02
49 °
Mount Chestnut, Saturday, 17 October
Light rain. High 49°, low 39°.
Pressure30.36 inHg
Wind13.2 mph N
Humidity53%
Visibility6.2 mi
Dew point32°
Sun, 1855° / 36°0
55 °
Mount Chestnut, Sunday, 18 October
Clear. High 55°, low 36°.
Pressure30.62 inHg
Wind4 mph SW
Humidity54%
Visibility6.2 mi
Dew point34°
Mon, 1962° / 39°0
62 °
Mount Chestnut, Monday, 19 October
Clear. High 62°, low 39°.
Pressure30.50 inHg
Wind6.1 mph SE
Humidity35%
Visibility—
Dew point31°
Tue, 2064° / 44°0
64 °
Mount Chestnut, Tuesday, 20 October
Overcast. High 64°, low 44°.
Pressure30.33 inHg
Wind4.9 mph SE
Humidity48%
Visibility—
Dew point41°
Wed, 2165° / 44°0
65 °
Mount Chestnut, Wednesday, 21 October
Clear. High 65°, low 44°.
Pressure30.27 inHg
Wind3.1 mph S
Humidity48%
Visibility—
Dew point42°
Thu, 2264° / 47°0.15
64 °
Mount Chestnut, Thursday, 22 October
Light rain. High 64°, low 47°.
Pressure30.00 inHg
Wind11.4 mph SW
Humidity63%
Visibility—
Dew point49°
Fri, 2356° / 37°0
56 °
Mount Chestnut, Friday, 23 October
Clear. High 56°, low 37°.
Pressure30.33 inHg
Wind10.3 mph N
Humidity41%
Visibility—
Dew point30°
Sat, 2467° / 41°0
67 °
Mount Chestnut, Saturday, 24 October
Overcast. High 67°, low 41°.
Pressure30.12 inHg
Wind10.4 mph S
Humidity60%
Visibility—
Dew point47°
Sun, 2564° / 42°0.22
64 °
Mount Chestnut, Sunday, 25 October
Rain. High 64°, low 42°.
Pressure30.09 inHg
Wind16.2 mph W
Humidity66%
Visibility—
Dew point38°
Mon, 2651° / 35°0
51 °
Mount Chestnut, Monday, 26 October
Clear. High 51°, low 35°.
Pressure30.21 inHg
Wind9.4 mph NW
Humidity46%
Visibility—
Dew point29°
Tue, 2758° / 37°0
58 °
Mount Chestnut, Tuesday, 27 October
Mostly clear. High 58°, low 37°.
Pressure30.09 inHg
Wind10.6 mph W
Humidity42%
Visibility—
Dew point32°
Wed, 2851° / 41°0.03
51 °
Mount Chestnut, Wednesday, 28 October
Light rain. High 51°, low 41°.
Pressure30.03 inHg
Wind8.7 mph S
Humidity70%
Visibility—
Dew point38°
Thu, 2955° / 46°1.1
55 °
Mount Chestnut, Thursday, 29 October
Rain. High 55°, low 46°.
Pressure29.71 inHg
Wind20.4 mph W
Humidity82%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3055° / 39°0.11
55 °
Mount Chestnut, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.11 in
Chance of precipitation28%
Record high72° (2024)
Record low28° (2011)
Sat, 3156° / 41°0.14
56 °
Mount Chestnut, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.14 in
Chance of precipitation37%
Record high76° (2024)
Record low26° (1988)
Sun, 0155° / 41°0.13
55 °
Mount Chestnut, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation48%
Record high71° (1974)
Record low30° (2017)
Mon, 0256° / 40°0.15
56 °
Mount Chestnut, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.15 in
Chance of precipitation47%
Record high73° (1982)
Record low25° (1993)
Tue, 0354° / 39°0.07
54 °
Mount Chestnut, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high74° (1961)
Record low27° (1966)
Wed, 0452° / 38°0.11
52 °
Mount Chestnut, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation30%
Record high73° (2003)
Record low23° (1991)
Thu, 0552° / 39°0.11
52 °
Mount Chestnut, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation38%
Record high74° (2024)
Record low19° (1991)
Fri, 0651° / 38°0.1
51 °
Mount Chestnut, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.1 in
Chance of precipitation40%
Record high69° (1975)
Record low25° (1995)
Sat, 0750° / 37°0.13
50 °
Mount Chestnut, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.13 in
Chance of precipitation40%
Record high69° (1996)
Record low26° (1967)
Sun, 0851° / 36°0.11
51 °
Mount Chestnut, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.11 in
Chance of precipitation33%
Record high70° (2020)
Record low24° (1976)
Mon, 0951° / 37°0.11
51 °
Mount Chestnut, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high70° (2020)
Record low21° (1991)
Tue, 1051° / 37°0.17
51 °
Mount Chestnut, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.17 in
Chance of precipitation42%
Record high73° (2020)
Record low20° (2017)
Wed, 1149° / 36°0.16
49 °
Mount Chestnut, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.16 in
Chance of precipitation40%
Record high65° (1964)
Record low18° (2017)
Thu, 1247° / 34°0.13
47 °
Mount Chestnut, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.13 in
Chance of precipitation40%
Record high65° (1964)
Record low18° (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 Mount Chestnut, 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 Mount Chestnut, 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.