Monthly outlook for Harkness, PA: average high 59.2°, average low 42.9°. That is 0.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 13 October (74°), the coolest 22 October (32.6°).
59.2°/42.9°
Average high / low
+0.1°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
60.3°
60°
+0.2°
22 October – 31 October
57.4°
56.3°
+0.6°
1 November – 10 November
at normal
53°
—
October records over 66 years
85.3°8 October 2007All-time high
23.2°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Monroe (15 mi).
Tue, 1374° / 54°0.02
74 °
Harkness, Tuesday, 13 October
Light rain. High 74°, low 54°.
Pressure29.85 inHg
Wind10.4 mph SW
Humidity76%
Visibility6.2 mi
Dew point62°
Wed, 1469° / 56°0
69 °
Harkness, Wednesday, 14 October
Overcast. High 69°, low 56°.
Pressure29.94 inHg
Wind11.7 mph NW
Humidity71%
Visibility6.2 mi
Dew point56°
Thu, 1559° / 50°0
59 °
Harkness, Thursday, 15 October
Overcast. High 59°, low 50°.
Pressure30.24 inHg
Wind2.4 mph NE
Humidity64%
Visibility6.2 mi
Dew point43°
Fri, 1658° / 43°0.56
58 °
Harkness, Friday, 16 October
Rain. High 58°, low 43°.
Pressure29.65 inHg
Wind10.6 mph W
Humidity95%
Visibility4.7 mi
Dew point55°
Sat, 1745° / 35°0.02
45 °
Harkness, Saturday, 17 October
Light rain. High 45°, low 35°.
Pressure30.30 inHg
Wind19.8 mph NW
Humidity68%
Visibility—
Dew point29°
Sun, 1854° / 34°0
54 °
Harkness, Sunday, 18 October
Clear. High 54°, low 34°.
Pressure30.50 inHg
Wind10 mph W
Humidity47%
Visibility—
Dew point27°
Mon, 1959° / 34°0
59 °
Harkness, Monday, 19 October
Clear. High 59°, low 34°.
Pressure30.45 inHg
Wind9.3 mph SW
Humidity49%
Visibility—
Dew point32°
Tue, 2061° / 44°0
61 °
Harkness, Tuesday, 20 October
Overcast. High 61°, low 44°.
Pressure30.33 inHg
Wind4.5 mph SW
Humidity65%
Visibility—
Dew point42°
Wed, 2156° / 37°0.01
56 °
Harkness, Wednesday, 21 October
Light rain. High 56°, low 37°.
Pressure30.42 inHg
Wind7.6 mph N
Humidity87%
Visibility—
Dew point48°
Thu, 2256° / 33°0
56 °
Harkness, Thursday, 22 October
Clear. High 56°, low 33°.
Pressure30.62 inHg
Wind4.9 mph S
Humidity48%
Visibility—
Dew point27°
Fri, 2357° / 40°0.03
57 °
Harkness, Friday, 23 October
Light rain. High 57°, low 40°.
Pressure30.33 inHg
Wind11.2 mph SW
Humidity73%
Visibility—
Dew point44°
Sat, 2461° / 51°0.01
61 °
Harkness, Saturday, 24 October
Light rain. High 61°, low 51°.
Pressure30.27 inHg
Wind4.5 mph NW
Humidity90%
Visibility—
Dew point51°
Sun, 2562° / 53°0.27
62 °
Harkness, Sunday, 25 October
Rain. High 62°, low 53°.
Pressure29.94 inHg
Wind12 mph S
Humidity83%
Visibility—
Dew point56°
Mon, 2652° / 38°0.11
52 °
Harkness, Monday, 26 October
Light rain. High 52°, low 38°.
Pressure29.62 inHg
Wind13 mph NW
Humidity90%
Visibility—
Dew point49°
Tue, 2756° / 35°0.06
56 °
Harkness, Tuesday, 27 October
Light rain. High 56°, low 35°.
Pressure29.50 inHg
Wind19.2 mph NW
Humidity58%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2856° / 41°0.12
56 °
Harkness, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation35%
Record high76° (1984)
Record low27° (1976)
Thu, 2954° / 40°0.14
54 °
Harkness, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.14 in
Chance of precipitation35%
Record high71° (1989)
Record low28° (1965)
Fri, 3054° / 39°0.11
54 °
Harkness, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation25%
Record high74° (2024)
Record low29° (2011)
Sat, 3155° / 40°0.07
55 °
Harkness, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation20%
Record high74° (2024)
Record low26° (2011)
Sun, 0156° / 42°0.09
56 °
Harkness, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (1974)
Record low31° (1964)
Mon, 0256° / 42°0.12
56 °
Harkness, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.12 in
Chance of precipitation33%
Record high75° (1982)
Record low26° (1993)
Tue, 0356° / 41°0.07
56 °
Harkness, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation32%
Record high72° (2003)
Record low28° (1993)
Wed, 0453° / 40°0.09
53 °
Harkness, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (2003)
Record low28° (2013)
Thu, 0553° / 40°0.09
53 °
Harkness, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation38%
Record high71° (2015)
Record low20° (1962)
Fri, 0652° / 40°0.08
52 °
Harkness, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.08 in
Chance of precipitation30%
Record high73° (2022)
Record low25° (1962)
Sat, 0751° / 38°0.08
51 °
Harkness, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation38%
Record high72° (2020)
Record low13° (1962)
Sun, 0851° / 37°0.13
51 °
Harkness, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation23%
Record high71° (2020)
Record low23° (2019)
Mon, 0951° / 37°0.12
51 °
Harkness, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.12 in
Chance of precipitation38%
Record high73° (2020)
Record low22° (2019)
Tue, 1051° / 38°0.15
51 °
Harkness, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.15 in
Chance of precipitation43%
Record high69° (2020)
Record low20° (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 Harkness, 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 Harkness, 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.