Monthly outlook for Mount Penn, PA: average high 63.8°, average low 48.4°. That is 1.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 14 October (77.8°), the coolest 19 October (36.1°).
63.8°/48.4°
Average high / low
+1.2°
Above normal
3 / 4
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
65.8°
62.8°
+1.7°
22 October – 31 October
60.5°
59°
+0.8°
1 November – 10 November
at normal
56.1°
—
October records over 66 years
90.9°2 October 2019All-time high
25.3°24 October 1969All-time low
Tue, 1377° / 55°0
77 °
Mount Penn, Tuesday, 13 October
Clear. High 77°, low 55°.
Pressure29.94 inHg
Wind5.9 mph S
Humidity67%
Visibility6.2 mi
Dew point61°
Wed, 1478° / 66°0.02
78 °
Mount Penn, Wednesday, 14 October
Light rain. High 78°, low 66°.
Pressure29.91 inHg
Wind7.8 mph W
Humidity71%
Visibility6.2 mi
Dew point67°
Thu, 1564° / 52°0
64 °
Mount Penn, Thursday, 15 October
Partly cloudy. High 64°, low 52°.
Pressure30.24 inHg
Wind4.9 mph NE
Humidity61%
Visibility6.2 mi
Dew point48°
Fri, 1673° / 55°0.63
73 °
Mount Penn, Friday, 16 October
Rain. High 73°, low 55°.
Pressure29.59 inHg
Wind14 mph SW
Humidity85%
Visibility6.2 mi
Dew point66°
Sat, 1751° / 40°0.01
51 °
Mount Penn, Saturday, 17 October
Light rain. High 51°, low 40°.
Pressure30.21 inHg
Wind16.1 mph NW
Humidity53%
Visibility—
Dew point31°
Sun, 1856° / 38°0
56 °
Mount Penn, Sunday, 18 October
Clear. High 56°, low 38°.
Pressure30.47 inHg
Wind8.6 mph SW
Humidity57%
Visibility—
Dew point35°
Mon, 1960° / 36°0
60 °
Mount Penn, Monday, 19 October
Clear. High 60°, low 36°.
Pressure30.50 inHg
Wind10 mph SW
Humidity50%
Visibility—
Dew point32°
Tue, 2063° / 47°0
63 °
Mount Penn, Tuesday, 20 October
Overcast. High 63°, low 47°.
Pressure30.36 inHg
Wind2.7 mph W
Humidity63%
Visibility—
Dew point41°
Wed, 2165° / 47°0
65 °
Mount Penn, Wednesday, 21 October
Clear. High 65°, low 47°.
Pressure30.36 inHg
Wind5.1 mph NE
Humidity62%
Visibility—
Dew point45°
Thu, 2264° / 46°0
64 °
Mount Penn, Thursday, 22 October
Clear. High 64°, low 46°.
Pressure30.50 inHg
Wind6.2 mph S
Humidity69%
Visibility—
Dew point46°
Fri, 2366° / 46°0
66 °
Mount Penn, Friday, 23 October
Overcast. High 66°, low 46°.
Pressure30.39 inHg
Wind11.5 mph SW
Humidity72%
Visibility—
Dew point49°
Sat, 2474° / 55°0
74 °
Mount Penn, Saturday, 24 October
Overcast. High 74°, low 55°.
Pressure30.15 inHg
Wind12 mph W
Humidity71%
Visibility—
Dew point55°
Sun, 2555° / 48°0.08
55 °
Mount Penn, Sunday, 25 October
Light rain. High 55°, low 48°.
Pressure30.27 inHg
Wind5.1 mph NE
Humidity64%
Visibility—
Dew point43°
Mon, 2650° / 46°0.72
50 °
Mount Penn, Monday, 26 October
Rain. High 50°, low 46°.
Pressure30.09 inHg
Wind8.3 mph N
Humidity77%
Visibility—
Dew point43°
Tue, 2753° / 42°0.01
53 °
Mount Penn, Tuesday, 27 October
Light rain. High 53°, low 42°.
Pressure29.71 inHg
Wind8.5 mph NW
Humidity60%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2859° / 43°0.14
59 °
Mount Penn, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.14 in
Chance of precipitation27%
Record high78° (2023)
Record low25° (1976)
Thu, 2957° / 42°0.22
57 °
Mount Penn, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.22 in
Chance of precipitation23%
Record high73° (1984)
Record low29° (1965)
Fri, 3057° / 40°0.1
57 °
Mount Penn, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high77° (2024)
Record low29° (1969)
Sat, 3158° / 42°0.05
58 °
Mount Penn, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.05 in
Chance of precipitation22%
Record high81° (2024)
Record low28° (1988)
Sun, 0159° / 44°0.07
59 °
Mount Penn, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation25%
Record high77° (1974)
Record low27° (2002)
Mon, 0259° / 44°0.1
59 °
Mount Penn, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.1 in
Chance of precipitation28%
Record high76° (1982)
Record low29° (1976)
Tue, 0358° / 43°0.08
58 °
Mount Penn, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high76° (2003)
Record low30° (1980)
Wed, 0457° / 41°0.06
57 °
Mount Penn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (1961)
Record low28° (2021)
Thu, 0556° / 41°0.1
56 °
Mount Penn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.1 in
Chance of precipitation28%
Record high75° (2022)
Record low26° (1991)
Fri, 0655° / 41°0.07
55 °
Mount Penn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high80° (2024)
Record low26° (1991)
Sat, 0754° / 40°0.06
54 °
Mount Penn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.06 in
Chance of precipitation18%
Record high72° (2024)
Record low26° (1962)
Sun, 0854° / 39°0.14
54 °
Mount Penn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation18%
Record high72° (2020)
Record low25° (1960)
Mon, 0954° / 39°0.09
54 °
Mount Penn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (1975)
Record low21° (2019)
Tue, 1055° / 39°0.16
55 °
Mount Penn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.16 in
Chance of precipitation38%
Record high73° (2020)
Record low24° (2017)
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 Penn, 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 Penn, 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.