Monthly outlook for Greble, PA: average high 61.3°, average low 43.8°. That is 0.3° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (76.7°), the coolest 18 October (30.5°).
61.3°/43.8°
Average high / low
−0.3°
Below normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
64.3°
62.9°
+0.7°
22 October – 31 October
56.4°
59.2°
-1.6°
1 November – 10 November
at normal
56.2°
—
October records over 66 years
88.2°2 October 2019All-time high
25.3°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Lebanon (7 mi).
Tue, 1377° / 54°0
77 °
Greble, Tuesday, 13 October
Partly cloudy. High 77°, low 54°.
Pressure29.94 inHg
Wind6.4 mph SW
Humidity71%
Visibility6.2 mi
Dew point62°
Wed, 1476° / 63°0.09
76 °
Greble, Wednesday, 14 October
Rain. High 76°, low 63°.
Pressure29.91 inHg
Wind10 mph NW
Humidity70%
Visibility6.2 mi
Dew point63°
Thu, 1563° / 52°0
63 °
Greble, Thursday, 15 October
Partly cloudy. High 63°, low 52°.
Pressure30.24 inHg
Wind4.3 mph N
Humidity58%
Visibility6.2 mi
Dew point46°
Fri, 1666° / 53°0.6
66 °
Greble, Friday, 16 October
Rain. High 66°, low 53°.
Pressure29.68 inHg
Wind18.3 mph NW
Humidity95%
Visibility—
Dew point61°
Sat, 1753° / 38°0
53 °
Greble, Saturday, 17 October
Overcast. High 53°, low 38°.
Pressure30.24 inHg
Wind17.1 mph NW
Humidity50%
Visibility—
Dew point31°
Sun, 1851° / 31°0
51 °
Greble, Sunday, 18 October
Clear. High 51°, low 31°.
Pressure30.59 inHg
Wind8.9 mph SW
Humidity45%
Visibility—
Dew point22°
Mon, 1959° / 35°0
59 °
Greble, Monday, 19 October
Clear. High 59°, low 35°.
Pressure30.53 inHg
Wind7.1 mph SW
Humidity50%
Visibility—
Dew point30°
Tue, 2064° / 43°0
64 °
Greble, Tuesday, 20 October
Overcast. High 64°, low 43°.
Pressure30.36 inHg
Wind4.9 mph NW
Humidity55%
Visibility—
Dew point39°
Wed, 2163° / 45°0
63 °
Greble, Wednesday, 21 October
Clear. High 63°, low 45°.
Pressure30.45 inHg
Wind7.4 mph SE
Humidity62%
Visibility—
Dew point44°
Thu, 2259° / 40°0
59 °
Greble, Thursday, 22 October
Clear. High 59°, low 40°.
Pressure30.59 inHg
Wind7.7 mph S
Humidity70%
Visibility—
Dew point42°
Fri, 2364° / 42°0.02
64 °
Greble, Friday, 23 October
Light rain. High 64°, low 42°.
Pressure30.33 inHg
Wind18.1 mph NW
Humidity75%
Visibility—
Dew point46°
Sat, 2452° / 36°0.03
52 °
Greble, Saturday, 24 October
Light rain. High 52°, low 36°.
Pressure30.30 inHg
Wind18.1 mph N
Humidity63%
Visibility—
Dew point38°
Sun, 2551° / 32°0
51 °
Greble, Sunday, 25 October
Partly cloudy. High 51°, low 32°.
Pressure30.33 inHg
Wind6.4 mph SW
Humidity46%
Visibility—
Dew point24°
Mon, 2655° / 44°0.15
55 °
Greble, Monday, 26 October
Light rain. High 55°, low 44°.
Pressure29.83 inHg
Wind13.1 mph N
Humidity84%
Visibility—
Dew point43°
Tue, 2757° / 39°0
57 °
Greble, Tuesday, 27 October
Clear. High 57°, low 39°.
Pressure30.06 inHg
Wind12.5 mph N
Humidity63%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2859° / 44°0.13
59 °
Greble, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation25%
Record high78° (1984)
Record low25° (1976)
Thu, 2957° / 42°0.2
57 °
Greble, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.2 in
Chance of precipitation23%
Record high72° (1971)
Record low29° (1965)
Fri, 3058° / 40°0.1
58 °
Greble, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (2016)
Record low29° (1965)
Sat, 3158° / 41°0.06
58 °
Greble, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (2024)
Record low29° (1988)
Sun, 0159° / 44°0.07
59 °
Greble, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation23%
Record high77° (1974)
Record low24° (2002)
Mon, 0259° / 44°0.13
59 °
Greble, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation30%
Record high77° (1982)
Record low28° (2002)
Tue, 0358° / 42°0.08
58 °
Greble, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (2003)
Record low27° (2002)
Wed, 0456° / 40°0.07
56 °
Greble, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (1987)
Record low28° (2006)
Thu, 0556° / 41°0.1
56 °
Greble, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2024)
Record low25° (1991)
Fri, 0655° / 41°0.07
55 °
Greble, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high80° (2024)
Record low26° (1967)
Sat, 0755° / 40°0.06
55 °
Greble, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1975)
Record low27° (1967)
Sun, 0855° / 39°0.17
55 °
Greble, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation18%
Record high73° (1975)
Record low26° (1960)
Mon, 0954° / 39°0.1
54 °
Greble, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation35%
Record high73° (1975)
Record low21° (2019)
Tue, 1055° / 39°0.17
55 °
Greble, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation43%
Record high73° (2020)
Record low24° (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 Greble, 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 Greble, 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.