Monthly outlook for Summit, PA: average high 56.7°, average low 45.5°. That is 1.2° below the climate normal for October. Precipitation is expected on 8 days (about 2.8 inches), against a normal of 7 days and 2.3 inches. The warmest day looks like 10 October (72.3°), the coolest 14 October (34.5°).
56.7°/45.5°
Average high / low
−1.2°
Below normal
8 / 7
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
61.1°
60.6°
+0.3°
17 October – 26 October
49.5°
55.8°
-3.5°
27 October – 5 November
at normal
53.3°
—
October records over 66 years
83.8°1 October 2019All-time high
30.6°29 October 1965All-time low
Climate normals and records are computed from the nearest reference point — Erie (6 mi).
Thu, 0863° / 46°0.04
63 °
Summit, Thursday, 8 October
Light rain. High 63°, low 46°.
Pressure29.97 inHg
Wind12.8 mph W
Humidity64%
Visibility6.2 mi
Dew point48°
Fri, 0960° / 53°0
60 °
Summit, Friday, 9 October
Mostly clear. High 60°, low 53°.
Pressure30.27 inHg
Wind12.4 mph W
Humidity66%
Visibility6.2 mi
Dew point48°
Sat, 1072° / 51°0
72 °
Summit, Saturday, 10 October
Clear. High 72°, low 51°.
Pressure30.30 inHg
Wind15.1 mph S
Humidity49%
Visibility6.2 mi
Dew point48°
Sun, 1163° / 60°0.5
63 °
Summit, Sunday, 11 October
Rain. High 63°, low 60°.
Pressure30.03 inHg
Wind21.2 mph SE
Humidity81%
Visibility—
Dew point57°
Mon, 1263° / 55°0.03
63 °
Summit, Monday, 12 October
Light rain. High 63°, low 55°.
Pressure29.77 inHg
Wind12.7 mph W
Humidity90%
Visibility—
Dew point60°
Tue, 1349° / 38°0.52
49 °
Summit, Tuesday, 13 October
Rain. High 49°, low 38°.
Pressure29.91 inHg
Wind13.4 mph NE
Humidity92%
Visibility—
Dew point41°
Wed, 1451° / 34°0
51 °
Summit, Wednesday, 14 October
Mostly clear. High 51°, low 34°.
Pressure30.27 inHg
Wind10.7 mph NE
Humidity43%
Visibility—
Dew point27°
Thu, 1559° / 42°0
59 °
Summit, Thursday, 15 October
Overcast. High 59°, low 42°.
Pressure30.12 inHg
Wind21.9 mph SE
Humidity43%
Visibility—
Dew point34°
Fri, 1662° / 53°0.68
62 °
Summit, Friday, 16 October
Rain. High 62°, low 53°.
Pressure29.91 inHg
Wind24.4 mph SE
Humidity86%
Visibility—
Dew point51°
Sat, 1750° / 45°0.75
50 °
Summit, Saturday, 17 October
Rain. High 50°, low 45°.
Pressure29.85 inHg
Wind14.6 mph NW
Humidity87%
Visibility—
Dew point46°
Sun, 1846° / 42°0.1
46 °
Summit, Sunday, 18 October
Light rain. High 46°, low 42°.
Pressure30.03 inHg
Wind19.9 mph NW
Humidity74%
Visibility—
Dew point34°
Mon, 1952° / 41°0
52 °
Summit, Monday, 19 October
Overcast. High 52°, low 41°.
Pressure30.24 inHg
Wind19.2 mph W
Humidity57%
Visibility—
Dew point36°
Tue, 2049° / 42°0
49 °
Summit, Tuesday, 20 October
Partly cloudy. High 49°, low 42°.
Pressure30.45 inHg
Wind11.1 mph NW
Humidity58%
Visibility—
Dew point33°
Wed, 2152° / 37°0
52 °
Summit, Wednesday, 21 October
Clear. High 52°, low 37°.
Pressure30.30 inHg
Wind13.1 mph W
Humidity52%
Visibility—
Dew point33°
Thu, 2247° / 44°0.1
47 °
Summit, Thursday, 22 October
Light rain. High 47°, low 44°.
Pressure30.00 inHg
Wind10.4 mph SW
Humidity85%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2356° / 47°0.16
56 °
Summit, Friday, 23 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.16 in
Chance of precipitation45%
Record high78° (2020)
Record low31° (1969)
Sat, 2456° / 47°0.14
56 °
Summit, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.14 in
Chance of precipitation53%
Record high75° (1963)
Record low33° (1969)
Sun, 2555° / 46°0.14
55 °
Summit, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.14 in
Chance of precipitation47%
Record high73° (1963)
Record low34° (1962)
Mon, 2655° / 46°0.14
55 °
Summit, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.14 in
Chance of precipitation47%
Record high74° (2023)
Record low34° (1962)
Tue, 2755° / 45°0.14
55 °
Summit, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.14 in
Chance of precipitation47%
Record high71° (2023)
Record low32° (1976)
Wed, 2854° / 44°0.14
54 °
Summit, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.14 in
Chance of precipitation45%
Record high68° (1984)
Record low33° (1965)
Thu, 2953° / 44°0.13
53 °
Summit, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.13 in
Chance of precipitation43%
Record high71° (2024)
Record low31° (1965)
Fri, 3054° / 44°0.11
54 °
Summit, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.11 in
Chance of precipitation32%
Record high74° (2024)
Record low34° (2011)
Sat, 3155° / 45°0.15
55 °
Summit, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.15 in
Chance of precipitation40%
Record high77° (2024)
Record low32° (1988)
Sun, 0154° / 45°0.14
54 °
Summit, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.14 in
Chance of precipitation55%
Record high67° (1984)
Record low35° (1993)
Mon, 0254° / 44°0.21
54 °
Summit, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.21 in
Chance of precipitation57%
Record high67° (1982)
Record low33° (1965)
Tue, 0353° / 43°0.12
53 °
Summit, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.12 in
Chance of precipitation47%
Record high71° (1961)
Record low31° (1966)
Wed, 0452° / 43°0.14
52 °
Summit, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.14 in
Chance of precipitation40%
Record high70° (2015)
Record low28° (1991)
Thu, 0552° / 43°0.14
52 °
Summit, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.14 in
Chance of precipitation53%
Record high75° (2022)
Record low26° (1991)
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 Summit, 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 Summit, 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.