Monthly outlook for Upper Gwynedd, PA: average high 59.3°, average low 42.7°. That is 0.6° below the climate normal for October. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 26 October (65.6°), the coolest 18 October (34.5°).
59.3°/42.7°
Average high / low
−0.6°
Below normal
0 / 4
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
61.4°
61.4°
+0°
27 October – 5 November
55.8°
58.6°
-1.5°
6 November – 15 November
at normal
53.8°
—
October records over 66 years
91.6°2 October 2019All-time high
27.7°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — North Wales (1 mi).
Sun, 1855° / 35°0
55 °
Upper Gwynedd, Sunday, 18 October
Clear. High 55°, low 35°.
Pressure30.59 inHg
Wind3.9 mph NE
Humidity49%
Visibility6.2 mi
Dew point35°
Mon, 1964° / 40°0
64 °
Upper Gwynedd, Monday, 19 October
Clear. High 64°, low 40°.
Pressure30.42 inHg
Wind6.5 mph N
Humidity52%
Visibility6.2 mi
Dew point42°
Tue, 2065° / 49°0
65 °
Upper Gwynedd, Tuesday, 20 October
Clear. High 65°, low 49°.
Pressure30.24 inHg
Wind8.9 mph NE
Humidity53%
Visibility6.2 mi
Dew point45°
Wed, 2160° / 45°0
60 °
Upper Gwynedd, Wednesday, 21 October
Clear. High 60°, low 45°.
Pressure30.27 inHg
Wind11.2 mph NE
Humidity58%
Visibility—
Dew point38°
Thu, 2263° / 43°0
63 °
Upper Gwynedd, Thursday, 22 October
Clear. High 63°, low 43°.
Pressure30.09 inHg
Wind8.5 mph N
Humidity56%
Visibility—
Dew point38°
Fri, 2361° / 46°0
61 °
Upper Gwynedd, Friday, 23 October
Overcast. High 61°, low 46°.
Pressure30.21 inHg
Wind9.8 mph NE
Humidity53%
Visibility—
Dew point37°
Sat, 2460° / 44°0
60 °
Upper Gwynedd, Saturday, 24 October
Clear. High 60°, low 44°.
Pressure30.42 inHg
Wind9.9 mph NE
Humidity48%
Visibility—
Dew point33°
Sun, 2562° / 43°0
62 °
Upper Gwynedd, Sunday, 25 October
Clear. High 62°, low 43°.
Pressure30.27 inHg
Wind7.6 mph W
Humidity44%
Visibility—
Dew point31°
Mon, 2666° / 48°0
66 °
Upper Gwynedd, Monday, 26 October
Overcast. High 66°, low 48°.
Pressure30.12 inHg
Wind7.5 mph SW
Humidity50%
Visibility—
Dew point39°
Tue, 2759° / 42°0
59 °
Upper Gwynedd, Tuesday, 27 October
Overcast. High 59°, low 42°.
Pressure30.03 inHg
Wind16.1 mph NW
Humidity57%
Visibility—
Dew point44°
Wed, 2853° / 37°0
53 °
Upper Gwynedd, Wednesday, 28 October
Overcast. High 53°, low 37°.
Pressure30.42 inHg
Wind10 mph NW
Humidity35%
Visibility—
Dew point19°
Thu, 2954° / 45°0.03
54 °
Upper Gwynedd, Thursday, 29 October
Light rain. High 54°, low 45°.
Pressure30.06 inHg
Wind14.9 mph W
Humidity48%
Visibility—
Dew point32°
Fri, 3053° / 43°0
53 °
Upper Gwynedd, Friday, 30 October
Overcast. High 53°, low 43°.
Pressure29.91 inHg
Wind16.2 mph NW
Humidity65%
Visibility—
Dew point40°
Sat, 3155° / 39°0
55 °
Upper Gwynedd, Saturday, 31 October
Clear. High 55°, low 39°.
Pressure30.24 inHg
Wind6 mph SE
Humidity54%
Visibility—
Dew point31°
Sun, 0161° / 45°0
61 °
Upper Gwynedd, Sunday, 1 November
Overcast. High 61°, low 45°.
Pressure30.30 inHg
Wind8.7 mph S
Humidity70%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0260° / 45°0.1
60 °
Upper Gwynedd, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (1971)
Record low29° (2023)
Tue, 0359° / 44°0.07
59 °
Upper Gwynedd, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation20%
Record high76° (2003)
Record low31° (1980)
Wed, 0457° / 43°0.07
57 °
Upper Gwynedd, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.07 in
Chance of precipitation20%
Record high73° (1974)
Record low31° (2006)
Thu, 0557° / 43°0.12
57 °
Upper Gwynedd, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high75° (2022)
Record low29° (1991)
Fri, 0656° / 42°0.07
56 °
Upper Gwynedd, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation28%
Record high79° (2024)
Record low28° (1991)
Sat, 0755° / 41°0.07
55 °
Upper Gwynedd, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (2024)
Record low27° (1962)
Sun, 0855° / 40°0.12
55 °
Upper Gwynedd, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.12 in
Chance of precipitation23%
Record high73° (2020)
Record low26° (1960)
Mon, 0955° / 40°0.09
55 °
Upper Gwynedd, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation32%
Record high74° (1975)
Record low23° (2019)
Tue, 1055° / 40°0.16
55 °
Upper Gwynedd, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.16 in
Chance of precipitation38%
Record high72° (2020)
Record low24° (2017)
Wed, 1154° / 40°0.12
54 °
Upper Gwynedd, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high70° (2006)
Record low21° (2017)
Thu, 1252° / 39°0.18
52 °
Upper Gwynedd, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.18 in
Chance of precipitation38%
Record high69° (1964)
Record low27° (2017)
Fri, 1351° / 38°0.14
51 °
Upper Gwynedd, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.14 in
Chance of precipitation37%
Record high70° (1964)
Record low21° (2019)
Sat, 1451° / 38°0.08
51 °
Upper Gwynedd, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation22%
Record high70° (1993)
Record low24° (1986)
Sun, 1553° / 38°0.1
53 °
Upper Gwynedd, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation28%
Record high74° (1993)
Record low25° (1967)
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 Upper Gwynedd, 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 Upper Gwynedd, 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.