Monthly outlook for Port Perry, PA: average high 58.4°, average low 45.5°. That is 1.7° above the climate normal for October. Precipitation is expected on 6 days (about 2.4 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 29 October (73.4°), the coolest 10 November (33.9°).
58.4°/45.5°
Average high / low
+1.7°
Above normal
6 / 6
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
65.2°
56.9°
+4.6°
7 November – 16 November
47.1°
51.6°
-2.5°
17 November – 26 November
at normal
48.4°
—
October records over 66 years
88.5°1 October 2019All-time high
25.5°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Turtle Creek (2 mi).
Thu, 2973° / 47°0
73 °
Port Perry, Thursday, 29 October
Clear. High 73°, low 47°.
Pressure30.21 inHg
Wind5.3 mph SW
Humidity62%
Visibility6.2 mi
Dew point52°
Fri, 3064° / 46°0.01
64 °
Port Perry, Friday, 30 October
Light rain. High 64°, low 46°.
Pressure30.30 inHg
Wind5.7 mph NW
Humidity61%
Visibility6.2 mi
Dew point45°
Sat, 3156° / 43°0
56 °
Port Perry, Saturday, 31 October
Overcast. High 56°, low 43°.
Pressure30.47 inHg
Wind3.6 mph E
Humidity63%
Visibility6.2 mi
Dew point41°
Sun, 0167° / 51°0
67 °
Port Perry, Sunday, 1 November
Overcast. High 67°, low 51°.
Pressure30.39 inHg
Wind2.1 mph SE
Humidity54%
Visibility6.2 mi
Dew point43°
Mon, 0266° / 46°0
66 °
Port Perry, Monday, 2 November
Overcast. High 66°, low 46°.
Pressure30.27 inHg
Wind5.6 mph S
Humidity43%
Visibility—
Dew point41°
Tue, 0367° / 54°0
67 °
Port Perry, Tuesday, 3 November
Overcast. High 67°, low 54°.
Pressure30.00 inHg
Wind10.6 mph S
Humidity58%
Visibility—
Dew point50°
Wed, 0469° / 55°0.02
69 °
Port Perry, Wednesday, 4 November
Light rain. High 69°, low 55°.
Pressure30.06 inHg
Wind10.4 mph SE
Humidity60%
Visibility—
Dew point52°
Thu, 0562° / 58°1.94
62 °
Port Perry, Thursday, 5 November
Heavy rain. High 62°, low 58°.
Pressure29.80 inHg
Wind13.3 mph SE
Humidity92%
Visibility—
Dew point59°
Fri, 0659° / 53°0.05
59 °
Port Perry, Friday, 6 November
Light rain. High 59°, low 53°.
Pressure29.68 inHg
Wind9.6 mph SW
Humidity78%
Visibility—
Dew point51°
Sat, 0754° / 38°0.11
54 °
Port Perry, Saturday, 7 November
Light rain. High 54°, low 38°.
Pressure29.94 inHg
Wind10.4 mph NW
Humidity80%
Visibility—
Dew point39°
Sun, 0844° / 39°0
44 °
Port Perry, Sunday, 8 November
Overcast. High 44°, low 39°.
Pressure30.06 inHg
Wind8.8 mph NW
Humidity72%
Visibility—
Dew point34°
Mon, 0948° / 40°0
48 °
Port Perry, Monday, 9 November
Overcast. High 48°, low 40°.
Pressure29.94 inHg
Wind8 mph W
Humidity71%
Visibility—
Dew point37°
Tue, 1045° / 34°0.19
45 °
Port Perry, Tuesday, 10 November
Light rain. High 45°, low 34°.
Pressure29.62 inHg
Wind12.2 mph SW
Humidity87%
Visibility—
Dew point36°
Wed, 1145° / 40°0.06
45 °
Port Perry, Wednesday, 11 November
Light rain. High 45°, low 40°.
Pressure29.77 inHg
Wind14.6 mph SW
Humidity75%
Visibility—
Dew point35°
Thu, 1246° / 39°0.06
46 °
Port Perry, Thursday, 12 November
Light rain. High 46°, low 39°.
Pressure29.80 inHg
Wind9.8 mph SW
Humidity79%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1349° / 35°0.06
49 °
Port Perry, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation37%
Record high68° (1989)
Record low9° (2019)
Sat, 1450° / 36°0.11
50 °
Port Perry, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (2011)
Record low16° (2019)
Sun, 1551° / 36°0.14
51 °
Port Perry, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.14 in
Chance of precipitation48%
Record high69° (2005)
Record low21° (1996)
Mon, 1650° / 36°0.14
50 °
Port Perry, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation40%
Record high69° (1988)
Record low21° (1967)
Tue, 1749° / 35°0.12
49 °
Port Perry, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation35%
Record high66° (2021)
Record low21° (2014)
Wed, 1849° / 35°0.08
49 °
Port Perry, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high69° (2016)
Record low16° (2014)
Thu, 1950° / 36°0.14
50 °
Port Perry, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation37%
Record high71° (1985)
Record low15° (2014)
Fri, 2049° / 36°0.11
49 °
Port Perry, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation43%
Record high71° (1991)
Record low18° (1984)
Sat, 2147° / 35°0.09
47 °
Port Perry, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation40%
Record high67° (2007)
Record low20° (1984)
Sun, 2247° / 34°0.12
47 °
Port Perry, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation38%
Record high68° (1999)
Record low17° (2000)
Mon, 2349° / 33°0.07
49 °
Port Perry, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation33%
Record high69° (1979)
Record low18° (2000)
Tue, 2447° / 33°0.11
47 °
Port Perry, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation37%
Record high66° (2014)
Record low17° (2005)
Wed, 2547° / 33°0.12
47 °
Port Perry, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation40%
Record high65° (1979)
Record low13° (2005)
Thu, 2649° / 35°0.19
49 °
Port Perry, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.19 in
Chance of precipitation45%
Record high63° (1979)
Record low19° (1971)
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 Port Perry, 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 Port Perry, 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.