Monthly outlook for Harmar Heights, PA: average high 60.5°, average low 42.5°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 16 October (70.1°), the coolest 18 October (37.8°).
60.5°/42.5°
Average high / low
+0.9°
Above normal
2 / 6
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
62.7°
59.8°
+1.6°
26 October – 4 November
56.9°
57.4°
-0.2°
5 November – 14 November
at normal
52.3°
—
October records over 66 years
87.1°8 October 2007All-time high
25.3°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Arnold (3 mi).
Sat, 1751° / 41°0
51 °
Harmar Heights, Saturday, 17 October
Light rain. High 51°, low 41°.
Pressure30.42 inHg
Wind10.8 mph N
Humidity55%
Visibility6.2 mi
Dew point29°
Sun, 1859° / 38°0
59 °
Harmar Heights, Sunday, 18 October
Clear. High 59°, low 38°.
Pressure30.62 inHg
Wind2.9 mph S
Humidity50%
Visibility6.2 mi
Dew point34°
Mon, 1966° / 38°0
66 °
Harmar Heights, Monday, 19 October
Clear. High 66°, low 38°.
Pressure30.47 inHg
Wind3.2 mph NE
Humidity41%
Visibility6.2 mi
Dew point37°
Tue, 2066° / 41°0
66 °
Harmar Heights, Tuesday, 20 October
Clear. High 66°, low 41°.
Pressure30.36 inHg
Wind3.9 mph NE
Humidity54%
Visibility6.2 mi
Dew point42°
Wed, 2165° / 43°0
65 °
Harmar Heights, Wednesday, 21 October
Clear. High 65°, low 43°.
Pressure30.27 inHg
Wind6.8 mph NE
Humidity48%
Visibility—
Dew point42°
Thu, 2262° / 42°0
62 °
Harmar Heights, Thursday, 22 October
Clear. High 62°, low 42°.
Pressure30.24 inHg
Wind4.4 mph N
Humidity40%
Visibility—
Dew point35°
Fri, 2365° / 42°0
65 °
Harmar Heights, Friday, 23 October
Clear. High 65°, low 42°.
Pressure30.15 inHg
Wind5.3 mph N
Humidity40%
Visibility—
Dew point37°
Sat, 2461° / 44°0
61 °
Harmar Heights, Saturday, 24 October
Clear. High 61°, low 44°.
Pressure30.33 inHg
Wind6.7 mph NE
Humidity52%
Visibility—
Dew point41°
Sun, 2562° / 42°0
62 °
Harmar Heights, Sunday, 25 October
Overcast. High 62°, low 42°.
Pressure30.33 inHg
Wind6.8 mph E
Humidity46%
Visibility—
Dew point38°
Mon, 2663° / 44°0
63 °
Harmar Heights, Monday, 26 October
Overcast. High 63°, low 44°.
Pressure30.12 inHg
Wind6.4 mph SW
Humidity60%
Visibility—
Dew point46°
Tue, 2756° / 42°0.02
56 °
Harmar Heights, Tuesday, 27 October
Light rain. High 56°, low 42°.
Pressure30.15 inHg
Wind12.7 mph NW
Humidity41%
Visibility—
Dew point30°
Wed, 2857° / 38°0
57 °
Harmar Heights, Wednesday, 28 October
Mostly clear. High 57°, low 38°.
Pressure30.24 inHg
Wind7.6 mph W
Humidity38%
Visibility—
Dew point29°
Thu, 2957° / 40°0.01
57 °
Harmar Heights, Thursday, 29 October
Light rain. High 57°, low 40°.
Pressure30.00 inHg
Wind10.4 mph SW
Humidity43%
Visibility—
Dew point33°
Fri, 3058° / 52°0.13
58 °
Harmar Heights, Friday, 30 October
Light rain. High 58°, low 52°.
Pressure29.74 inHg
Wind12.2 mph SW
Humidity59%
Visibility—
Dew point43°
Sat, 3152° / 43°0.02
52 °
Harmar Heights, Saturday, 31 October
Light rain. High 52°, low 43°.
Pressure30.00 inHg
Wind9.6 mph W
Humidity60%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 43°0.11
58 °
Harmar Heights, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation45%
Record high74° (1974)
Record low29° (2023)
Mon, 0258° / 43°0.14
58 °
Harmar Heights, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.14 in
Chance of precipitation42%
Record high76° (1982)
Record low24° (1993)
Tue, 0356° / 41°0.08
56 °
Harmar Heights, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation38%
Record high78° (1961)
Record low29° (1966)
Wed, 0455° / 40°0.12
55 °
Harmar Heights, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high76° (2003)
Record low25° (1991)
Thu, 0555° / 41°0.11
55 °
Harmar Heights, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.11 in
Chance of precipitation40%
Record high78° (2024)
Record low21° (1991)
Fri, 0654° / 40°0.09
54 °
Harmar Heights, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation33%
Record high73° (2022)
Record low26° (1995)
Sat, 0753° / 39°0.13
53 °
Harmar Heights, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation38%
Record high72° (1996)
Record low27° (1967)
Sun, 0853° / 38°0.11
53 °
Harmar Heights, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation27%
Record high72° (2020)
Record low26° (1967)
Mon, 0954° / 39°0.11
54 °
Harmar Heights, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation35%
Record high73° (1975)
Record low23° (1976)
Tue, 1054° / 39°0.17
54 °
Harmar Heights, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.17 in
Chance of precipitation40%
Record high75° (2020)
Record low21° (2017)
Wed, 1151° / 38°0.17
51 °
Harmar Heights, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.17 in
Chance of precipitation37%
Record high68° (1964)
Record low19° (2017)
Thu, 1250° / 36°0.14
50 °
Harmar Heights, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation40%
Record high69° (1964)
Record low20° (2019)
Fri, 1349° / 35°0.06
49 °
Harmar Heights, 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 low10° (2019)
Sat, 1449° / 36°0.11
49 °
Harmar Heights, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (2011)
Record low19° (1986)
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 Harmar Heights, 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 Harmar Heights, 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.