Monthly outlook for Penn, PA: average high 56.8°, average low 39.4°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 16 October (72.3°), the coolest 24 October (31.2°).
56.8°/39.4°
Average high / low
+2.3°
Above normal
3 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
59.5°
53.7°
+3.2°
25 October – 3 November
52.2°
50.7°
+0.8°
4 November – 13 November
at normal
46°
—
October records over 66 years
80.6°8 October 2007All-time high
19.8°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Davidson (10 mi).
Fri, 1672° / 54°0.6
72 °
Penn, Friday, 16 October
Heavy rain. High 72°, low 54°.
Pressure29.71 inHg
Wind12.2 mph S
Humidity95%
Visibility6.2 mi
Dew point63°
Sat, 1755° / 36°0.01
55 °
Penn, Saturday, 17 October
Light rain. High 55°, low 36°.
Pressure30.27 inHg
Wind14 mph N
Humidity56%
Visibility6.2 mi
Dew point25°
Sun, 1856° / 34°0
56 °
Penn, Sunday, 18 October
Clear. High 56°, low 34°.
Pressure30.56 inHg
Wind4.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point38°
Mon, 1960° / 39°0
60 °
Penn, Monday, 19 October
Clear. High 60°, low 39°.
Pressure30.53 inHg
Wind4.4 mph S
Humidity51%
Visibility6.2 mi
Dew point37°
Tue, 2067° / 38°0
67 °
Penn, Tuesday, 20 October
Overcast. High 67°, low 38°.
Pressure30.39 inHg
Wind5.2 mph N
Humidity53%
Visibility—
Dew point38°
Wed, 2161° / 42°0
61 °
Penn, Wednesday, 21 October
Clear. High 61°, low 42°.
Pressure30.36 inHg
Wind7.1 mph N
Humidity65%
Visibility—
Dew point44°
Thu, 2258° / 38°0
58 °
Penn, Thursday, 22 October
Clear. High 58°, low 38°.
Pressure30.39 inHg
Wind4.6 mph SW
Humidity58%
Visibility—
Dew point37°
Fri, 2355° / 36°0
55 °
Penn, Friday, 23 October
Mostly clear. High 55°, low 36°.
Pressure30.39 inHg
Wind12.5 mph N
Humidity55%
Visibility—
Dew point35°
Sat, 2451° / 31°0
51 °
Penn, Saturday, 24 October
Partly cloudy. High 51°, low 31°.
Pressure30.65 inHg
Wind5.5 mph SE
Humidity46%
Visibility—
Dew point23°
Sun, 2552° / 32°0
52 °
Penn, Sunday, 25 October
Overcast. High 52°, low 32°.
Pressure30.53 inHg
Wind4.5 mph N
Humidity39%
Visibility—
Dew point21°
Mon, 2657° / 37°0
57 °
Penn, Monday, 26 October
Clear. High 57°, low 37°.
Pressure30.47 inHg
Wind11.7 mph N
Humidity60%
Visibility—
Dew point37°
Tue, 2753° / 34°0
53 °
Penn, Tuesday, 27 October
Overcast. High 53°, low 34°.
Pressure30.39 inHg
Wind5.9 mph SW
Humidity59%
Visibility—
Dew point31°
Wed, 2853° / 44°0.01
53 °
Penn, Wednesday, 28 October
Light rain. High 53°, low 44°.
Pressure30.18 inHg
Wind9.4 mph N
Humidity83%
Visibility—
Dew point44°
Thu, 2945° / 40°0.16
45 °
Penn, Thursday, 29 October
Light rain. High 45°, low 40°.
Pressure30.33 inHg
Wind4.7 mph S
Humidity96%
Visibility—
Dew point40°
Fri, 3053° / 46°0.52
53 °
Penn, Friday, 30 October
Rain. High 53°, low 46°.
Pressure30.15 inHg
Wind6.2 mph S
Humidity98%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3150° / 35°0.11
50 °
Penn, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.11 in
Chance of precipitation27%
Record high69° (2024)
Record low20° (2002)
Sun, 0151° / 37°0.11
51 °
Penn, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation33%
Record high68° (1974)
Record low22° (2002)
Mon, 0251° / 37°0.16
51 °
Penn, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.16 in
Chance of precipitation35%
Record high69° (1982)
Record low21° (2002)
Tue, 0351° / 36°0.09
51 °
Penn, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation33%
Record high67° (2003)
Record low23° (1993)
Wed, 0448° / 35°0.09
48 °
Penn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation22%
Record high67° (2003)
Record low23° (1962)
Thu, 0548° / 35°0.11
48 °
Penn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation33%
Record high65° (2015)
Record low16° (1962)
Fri, 0647° / 35°0.09
47 °
Penn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation35%
Record high67° (2015)
Record low20° (1962)
Sat, 0746° / 33°0.08
46 °
Penn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation35%
Record high64° (1975)
Record low20° (1962)
Sun, 0847° / 33°0.16
47 °
Penn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.16 in
Chance of precipitation25%
Record high67° (2020)
Record low19° (2019)
Mon, 0946° / 33°0.11
46 °
Penn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation37%
Record high65° (2020)
Record low18° (2019)
Tue, 1046° / 33°0.17
46 °
Penn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.17 in
Chance of precipitation45%
Record high63° (2020)
Record low14° (2017)
Wed, 1145° / 33°0.15
45 °
Penn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.15 in
Chance of precipitation33%
Record high62° (2006)
Record low14° (2017)
Thu, 1244° / 31°0.19
44 °
Penn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.19 in
Chance of precipitation35%
Record high62° (1964)
Record low14° (2019)
Fri, 1342° / 29°0.09
42 °
Penn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation33%
Record high61° (1964)
Record low13° (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 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 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.