Monthly outlook for Greenfield, PA: average high 55°, average low 38.2°. That is 2° below the climate normal for October. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 13 October (77°), the coolest 19 October (24.3°).
55°/38.2°
Average high / low
−2°
Below normal
4 / 4
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
58°
59.5°
-0.9°
21 October – 30 October
50°
55.9°
-3.3°
31 October – 9 November
at normal
52.8°
—
October records over 66 years
86.2°1 October 2019All-time high
19°30 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Huston (13 mi).
Mon, 1268° / 46°0
68 °
Greenfield, Monday, 12 October
Light rain. High 68°, low 46°.
Pressure29.94 inHg
Wind12.8 mph NW
Humidity88%
Visibility6.2 mi
Dew point56°
Tue, 1377° / 56°0
77 °
Greenfield, Tuesday, 13 October
Mostly clear. High 77°, low 56°.
Pressure29.94 inHg
Wind10.3 mph SW
Humidity64%
Visibility6.2 mi
Dew point60°
Wed, 1469° / 55°0.46
69 °
Greenfield, Wednesday, 14 October
Rain. High 69°, low 55°.
Pressure29.97 inHg
Wind11.7 mph W
Humidity82%
Visibility6.2 mi
Dew point62°
Thu, 1558° / 47°0
58 °
Greenfield, Thursday, 15 October
Overcast. High 58°, low 47°.
Pressure30.30 inHg
Wind11.7 mph NW
Humidity65%
Visibility—
Dew point41°
Fri, 1662° / 46°0.16
62 °
Greenfield, Friday, 16 October
Rain. High 62°, low 46°.
Pressure30.00 inHg
Wind19.3 mph W
Humidity68%
Visibility—
Dew point43°
Sat, 1747° / 31°0.04
47 °
Greenfield, Saturday, 17 October
Snow. High 47°, low 31°.
Pressure29.91 inHg
Wind18.1 mph NW
Humidity65%
Visibility—
Dew point31°
Sun, 1840° / 25°0
40 °
Greenfield, Sunday, 18 October
Clear. High 40°, low 25°.
Pressure30.50 inHg
Wind12.8 mph N
Humidity46%
Visibility—
Dew point15°
Mon, 1948° / 24°0
48 °
Greenfield, Monday, 19 October
Overcast. High 48°, low 24°.
Pressure30.68 inHg
Wind2.6 mph N
Humidity36%
Visibility—
Dew point13°
Tue, 2054° / 29°0
54 °
Greenfield, Tuesday, 20 October
Mostly clear. High 54°, low 29°.
Pressure30.50 inHg
Wind2.5 mph NW
Humidity39%
Visibility—
Dew point21°
Wed, 2154° / 33°0
54 °
Greenfield, Wednesday, 21 October
Mostly clear. High 54°, low 33°.
Pressure30.39 inHg
Wind5 mph S
Humidity50%
Visibility—
Dew point28°
Thu, 2260° / 38°0
60 °
Greenfield, Thursday, 22 October
Overcast. High 60°, low 38°.
Pressure30.15 inHg
Wind13.6 mph W
Humidity49%
Visibility—
Dew point33°
Fri, 2351° / 41°0
51 °
Greenfield, Friday, 23 October
Overcast. High 51°, low 41°.
Pressure30.12 inHg
Wind12.8 mph NW
Humidity72%
Visibility—
Dew point39°
Sat, 2441° / 33°0.02
41 °
Greenfield, Saturday, 24 October
Snow. High 41°, low 33°.
Pressure30.27 inHg
Wind12.1 mph NW
Humidity65%
Visibility—
Dew point28°
Sun, 2549° / 28°0
49 °
Greenfield, Sunday, 25 October
Mostly clear. High 49°, low 28°.
Pressure30.36 inHg
Wind12.3 mph W
Humidity55%
Visibility—
Dew point27°
Mon, 2646° / 35°0.01
46 °
Greenfield, Monday, 26 October
Light rain. High 46°, low 35°.
Pressure30.47 inHg
Wind3.5 mph SE
Humidity68%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 41°0.15
56 °
Greenfield, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.15 in
Chance of precipitation28%
Record high78° (1963)
Record low26° (1988)
Wed, 2856° / 40°0.09
56 °
Greenfield, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (2014)
Record low23° (1976)
Thu, 2954° / 38°0.2
54 °
Greenfield, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.2 in
Chance of precipitation30%
Record high70° (2016)
Record low24° (1965)
Fri, 3054° / 38°0.09
54 °
Greenfield, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high76° (2024)
Record low19° (2011)
Sat, 3155° / 39°0.05
55 °
Greenfield, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation27%
Record high79° (2024)
Record low22° (2011)
Sun, 0155° / 40°0.07
55 °
Greenfield, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation20%
Record high73° (1974)
Record low21° (2002)
Mon, 0255° / 40°0.14
55 °
Greenfield, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.14 in
Chance of precipitation37%
Record high75° (1982)
Record low27° (1976)
Tue, 0354° / 38°0.07
54 °
Greenfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (2003)
Record low27° (2002)
Wed, 0452° / 38°0.09
52 °
Greenfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high73° (2003)
Record low25° (1991)
Thu, 0552° / 38°0.12
52 °
Greenfield, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.12 in
Chance of precipitation30%
Record high73° (2024)
Record low19° (1991)
Fri, 0652° / 38°0.05
52 °
Greenfield, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.05 in
Chance of precipitation33%
Record high76° (2022)
Record low24° (1995)
Sat, 0751° / 37°0.12
51 °
Greenfield, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.12 in
Chance of precipitation37%
Record high68° (2020)
Record low22° (1962)
Sun, 0851° / 35°0.13
51 °
Greenfield, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (2020)
Record low22° (1960)
Mon, 0951° / 36°0.08
51 °
Greenfield, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high72° (2020)
Record low22° (1976)
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 Greenfield, 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 Greenfield, 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.