Monthly outlook for Duncan, PA: average high 57.8°, average low 43.7°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 13 October (71.4°), the coolest 18 October (33.8°).
57.8°/43.7°
Average high / low
+1.7°
Above normal
3 / 6
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
60.3°
55.7°
+2.6°
23 October – 1 November
53.5°
52.4°
+0.6°
2 November – 11 November
at normal
48.6°
—
October records over 66 years
81.3°1 October 2019All-time high
13.1°20 October 1972All-time low
Wed, 1465° / 55°0.06
65 °
Duncan, Wednesday, 14 October
Light rain. High 65°, low 55°.
Pressure29.94 inHg
Wind9.8 mph W
Humidity73%
Visibility6.2 mi
Dew point60°
Thu, 1559° / 50°0
59 °
Duncan, Thursday, 15 October
Overcast. High 59°, low 50°.
Pressure30.27 inHg
Wind3.6 mph E
Humidity66%
Visibility6.2 mi
Dew point43°
Fri, 1667° / 44°0.46
67 °
Duncan, Friday, 16 October
Rain. High 67°, low 44°.
Pressure29.47 inHg
Wind18.3 mph SW
Humidity84%
Visibility3.8 mi
Dew point63°
Sat, 1742° / 36°0.02
42 °
Duncan, Saturday, 17 October
Light rain. High 42°, low 36°.
Pressure30.27 inHg
Wind18.3 mph NW
Humidity68%
Visibility—
Dew point30°
Sun, 1857° / 34°0
57 °
Duncan, Sunday, 18 October
Clear. High 57°, low 34°.
Pressure30.45 inHg
Wind11.5 mph SW
Humidity53%
Visibility—
Dew point30°
Mon, 1954° / 35°0
54 °
Duncan, Monday, 19 October
Overcast. High 54°, low 35°.
Pressure30.45 inHg
Wind8.8 mph S
Humidity58%
Visibility—
Dew point33°
Tue, 2059° / 42°0
59 °
Duncan, Tuesday, 20 October
Overcast. High 59°, low 42°.
Pressure30.45 inHg
Wind3.3 mph S
Humidity57%
Visibility—
Dew point37°
Wed, 2166° / 49°0
66 °
Duncan, Wednesday, 21 October
Overcast. High 66°, low 49°.
Pressure30.42 inHg
Wind2.3 mph S
Humidity62%
Visibility—
Dew point43°
Thu, 2264° / 47°0
64 °
Duncan, Thursday, 22 October
Overcast. High 64°, low 47°.
Pressure30.33 inHg
Wind6 mph S
Humidity67%
Visibility—
Dew point46°
Fri, 2366° / 48°0
66 °
Duncan, Friday, 23 October
Mostly clear. High 66°, low 48°.
Pressure30.27 inHg
Wind10.7 mph S
Humidity70%
Visibility—
Dew point49°
Sat, 2466° / 50°0
66 °
Duncan, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.03 inHg
Wind12.8 mph W
Humidity61%
Visibility—
Dew point49°
Sun, 2556° / 42°0
56 °
Duncan, Sunday, 25 October
Overcast. High 56°, low 42°.
Pressure30.06 inHg
Wind11.3 mph W
Humidity62%
Visibility—
Dew point37°
Mon, 2645° / 38°0
45 °
Duncan, Monday, 26 October
Overcast. High 45°, low 38°.
Pressure30.12 inHg
Wind3.8 mph W
Humidity84%
Visibility—
Dew point37°
Tue, 2746° / 35°0
46 °
Duncan, Tuesday, 27 October
Partly cloudy. High 46°, low 35°.
Pressure29.74 inHg
Wind10.4 mph SW
Humidity62%
Visibility—
Dew point31°
Wed, 2843° / 41°0.15
43 °
Duncan, Wednesday, 28 October
Light rain. High 43°, low 41°.
Pressure29.47 inHg
Wind13 mph SW
Humidity90%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2950° / 36°0.15
50 °
Duncan, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation32%
Record high67° (1989)
Record low24° (1965)
Fri, 3051° / 36°0.1
51 °
Duncan, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation27%
Record high71° (2024)
Record low26° (1983)
Sat, 3151° / 37°0.1
51 °
Duncan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation25%
Record high73° (2024)
Record low19° (2002)
Sun, 0152° / 38°0.1
52 °
Duncan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (1974)
Record low26° (2023)
Mon, 0252° / 38°0.12
52 °
Duncan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.12 in
Chance of precipitation37%
Record high71° (1982)
Record low20° (1993)
Tue, 0352° / 37°0.06
52 °
Duncan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (2015)
Record low26° (1984)
Wed, 0449° / 36°0.1
49 °
Duncan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation27%
Record high69° (2003)
Record low23° (1991)
Thu, 0549° / 36°0.08
49 °
Duncan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation40%
Record high68° (2022)
Record low19° (1991)
Fri, 0649° / 36°0.07
49 °
Duncan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2022)
Record low25° (1995)
Sat, 0747° / 34°0.08
47 °
Duncan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation38%
Record high67° (2020)
Record low17° (1962)
Sun, 0848° / 34°0.11
48 °
Duncan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (2020)
Record low20° (2019)
Mon, 0947° / 34°0.1
47 °
Duncan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation35%
Record high68° (2020)
Record low19° (1976)
Tue, 1047° / 34°0.14
47 °
Duncan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.14 in
Chance of precipitation43%
Record high66° (2020)
Record low16° (2017)
Wed, 1145° / 34°0.13
45 °
Duncan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.13 in
Chance of precipitation42%
Record high63° (1964)
Record low16° (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 Duncan, 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 Duncan, 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.