Monthly outlook for Mount Chestnut, PA: average high 57.2°, average low 36.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 20 October (67.5°), the coolest 29 October (28.3°).
57.2°/36.1°
Average high / low
+0.8°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
58.9°
56.5°
+1.3°
29 October – 7 November
54.3°
53.4°
+0.5°
8 November – 17 November
at normal
48.3°
—
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).
Tue, 2068° / 36°0
68 °
Mount Chestnut, Tuesday, 20 October
Partly cloudy. High 68°, low 36°.
Pressure30.36 inHg
Wind4.5 mph NE
Humidity57%
Visibility6.2 mi
Dew point45°
Wed, 2162° / 32°0
62 °
Mount Chestnut, Wednesday, 21 October
Clear. High 62°, low 32°.
Pressure30.30 inHg
Wind1.4 mph E
Humidity54%
Visibility6.2 mi
Dew point41°
Thu, 2261° / 40°0
61 °
Mount Chestnut, Thursday, 22 October
Light rain. High 61°, low 40°.
Pressure30.18 inHg
Wind10.2 mph NW
Humidity69%
Visibility6.2 mi
Dew point49°
Fri, 2352° / 37°0
52 °
Mount Chestnut, Friday, 23 October
Mostly clear. High 52°, low 37°.
Pressure30.42 inHg
Wind6.9 mph N
Humidity57%
Visibility6.2 mi
Dew point34°
Sat, 2457° / 32°0
57 °
Mount Chestnut, Saturday, 24 October
Clear. High 57°, low 32°.
Pressure30.53 inHg
Wind6.8 mph E
Humidity42%
Visibility—
Dew point30°
Sun, 2561° / 36°0
61 °
Mount Chestnut, Sunday, 25 October
Clear. High 61°, low 36°.
Pressure30.42 inHg
Wind5.5 mph S
Humidity52%
Visibility—
Dew point40°
Mon, 2662° / 48°0
62 °
Mount Chestnut, Monday, 26 October
Overcast. High 62°, low 48°.
Pressure30.24 inHg
Wind8.1 mph SW
Humidity61%
Visibility—
Dew point47°
Tue, 2757° / 43°0.04
57 °
Mount Chestnut, Tuesday, 27 October
Light rain. High 57°, low 43°.
Pressure30.21 inHg
Wind6.2 mph N
Humidity50%
Visibility—
Dew point37°
Wed, 2842° / 31°0.16
42 °
Mount Chestnut, Wednesday, 28 October
Light rain. High 42°, low 31°.
Pressure30.24 inHg
Wind8.7 mph N
Humidity82%
Visibility—
Dew point35°
Thu, 2947° / 28°0
47 °
Mount Chestnut, Thursday, 29 October
Partly cloudy. High 47°, low 28°.
Pressure30.27 inHg
Wind9 mph NW
Humidity43%
Visibility—
Dew point23°
Fri, 3050° / 29°0
50 °
Mount Chestnut, Friday, 30 October
Clear. High 50°, low 29°.
Pressure30.33 inHg
Wind5.8 mph W
Humidity44%
Visibility—
Dew point26°
Sat, 3155° / 32°0
55 °
Mount Chestnut, Saturday, 31 October
Mostly clear. High 55°, low 32°.
Pressure30.27 inHg
Wind9.9 mph SW
Humidity41%
Visibility—
Dew point28°
Sun, 0158° / 37°0
58 °
Mount Chestnut, Sunday, 1 November
Overcast. High 58°, low 37°.
Pressure30.21 inHg
Wind8.4 mph SW
Humidity41%
Visibility—
Dew point32°
Mon, 0257° / 40°0
57 °
Mount Chestnut, Monday, 2 November
Overcast. High 57°, low 40°.
Pressure30.12 inHg
Wind5.3 mph E
Humidity45%
Visibility—
Dew point34°
Tue, 0360° / 44°0
60 °
Mount Chestnut, Tuesday, 3 November
Overcast. High 60°, low 44°.
Pressure29.97 inHg
Wind4.9 mph E
Humidity62%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 1346° / 33°0.07
46 °
Mount Chestnut, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation37%
Record high64° (1989)
Record low11° (2019)
Sat, 1447° / 34°0.11
47 °
Mount Chestnut, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.11 in
Chance of precipitation30%
Record high65° (1994)
Record low16° (1986)
Sun, 1547° / 34°0.15
47 °
Mount Chestnut, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation53%
Record high65° (1971)
Record low9° (1996)
Mon, 1647° / 34°0.15
47 °
Mount Chestnut, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation40%
Record high65° (1988)
Record low17° (1967)
Tue, 1746° / 33°0.14
46 °
Mount Chestnut, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.14 in
Chance of precipitation35%
Record high62° (2021)
Record low17° (2014)
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.