Monthly outlook for Mount Rock, PA: average high 66.2°, average low 48.8°. That is 2.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 16 October (82.1°), the coolest 18 October (37°).
66.2°/48.8°
Average high / low
+2.9°
Above normal
2 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
66.7°
62.1°
+2.6°
24 October – 2 November
65.3°
58.7°
+3.6°
3 November – 12 November
at normal
54.7°
—
October records over 66 years
88°9 October 2007All-time high
17.6°30 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Shippensburg University (13 mi).
Thu, 1569° / 54°0
69 °
Mount Rock, Thursday, 15 October
Overcast. High 69°, low 54°.
Pressure30.21 inHg
Wind5 mph E
Humidity65%
Visibility6.2 mi
Dew point49°
Fri, 1682° / 56°0.02
82 °
Mount Rock, Friday, 16 October
Light rain. High 82°, low 56°.
Pressure29.77 inHg
Wind10.4 mph SW
Humidity75%
Visibility6.2 mi
Dew point66°
Sat, 1757° / 42°0.01
57 °
Mount Rock, Saturday, 17 October
Light rain. High 57°, low 42°.
Pressure30.21 inHg
Wind14.1 mph N
Humidity47%
Visibility6.2 mi
Dew point32°
Sun, 1856° / 37°0
56 °
Mount Rock, Sunday, 18 October
Clear. High 56°, low 37°.
Pressure30.62 inHg
Wind1.9 mph S
Humidity49%
Visibility6.2 mi
Dew point33°
Mon, 1961° / 39°0
61 °
Mount Rock, Monday, 19 October
Clear. High 61°, low 39°.
Pressure30.53 inHg
Wind4.2 mph W
Humidity50%
Visibility—
Dew point34°
Tue, 2066° / 40°0
66 °
Mount Rock, Tuesday, 20 October
Partly cloudy. High 66°, low 40°.
Pressure30.33 inHg
Wind4 mph NE
Humidity50%
Visibility—
Dew point38°
Wed, 2165° / 46°0
65 °
Mount Rock, Wednesday, 21 October
Clear. High 65°, low 46°.
Pressure30.42 inHg
Wind4.7 mph NE
Humidity62%
Visibility—
Dew point45°
Thu, 2264° / 46°0
64 °
Mount Rock, Thursday, 22 October
Clear. High 64°, low 46°.
Pressure30.47 inHg
Wind5.4 mph S
Humidity75%
Visibility—
Dew point48°
Fri, 2367° / 46°0
67 °
Mount Rock, Friday, 23 October
Clear. High 67°, low 46°.
Pressure30.39 inHg
Wind4.9 mph SW
Humidity72%
Visibility—
Dew point49°
Sat, 2469° / 51°0
69 °
Mount Rock, Saturday, 24 October
Overcast. High 69°, low 51°.
Pressure30.45 inHg
Wind6.6 mph SE
Humidity68%
Visibility—
Dew point50°
Sun, 2568° / 48°0
68 °
Mount Rock, Sunday, 25 October
Clear. High 68°, low 48°.
Pressure30.42 inHg
Wind10.4 mph S
Humidity69%
Visibility—
Dew point49°
Mon, 2667° / 52°0
67 °
Mount Rock, Monday, 26 October
Overcast. High 67°, low 52°.
Pressure30.12 inHg
Wind15.3 mph S
Humidity86%
Visibility—
Dew point57°
Tue, 2762° / 53°0.02
62 °
Mount Rock, Tuesday, 27 October
Light rain. High 62°, low 53°.
Pressure30.18 inHg
Wind5.9 mph N
Humidity68%
Visibility—
Dew point48°
Wed, 2858° / 54°1.22
58 °
Mount Rock, Wednesday, 28 October
Rain. High 58°, low 54°.
Pressure30.00 inHg
Wind9.4 mph E
Humidity99%
Visibility—
Dew point55°
Thu, 2966° / 52°0.16
66 °
Mount Rock, Thursday, 29 October
Light rain. High 66°, low 52°.
Pressure29.68 inHg
Wind18.6 mph NW
Humidity90%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3058° / 40°0.1
58 °
Mount Rock, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (2016)
Record low18° (2011)
Sat, 3158° / 41°0.07
58 °
Mount Rock, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.07 in
Chance of precipitation23%
Record high78° (2024)
Record low28° (1988)
Sun, 0159° / 43°0.06
59 °
Mount Rock, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation25%
Record high77° (1974)
Record low23° (2002)
Mon, 0259° / 43°0.14
59 °
Mount Rock, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.14 in
Chance of precipitation32%
Record high77° (1982)
Record low29° (2023)
Tue, 0358° / 42°0.06
58 °
Mount Rock, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.06 in
Chance of precipitation28%
Record high77° (2003)
Record low29° (2002)
Wed, 0456° / 40°0.08
56 °
Mount Rock, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.08 in
Chance of precipitation18%
Record high77° (2003)
Record low24° (1962)
Thu, 0556° / 41°0.12
56 °
Mount Rock, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation28%
Record high74° (1994)
Record low25° (1991)
Fri, 0655° / 41°0.06
55 °
Mount Rock, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.06 in
Chance of precipitation30%
Record high79° (2024)
Record low26° (1991)
Sat, 0754° / 40°0.09
54 °
Mount Rock, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (1975)
Record low27° (1962)
Sun, 0855° / 39°0.15
55 °
Mount Rock, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.15 in
Chance of precipitation22%
Record high73° (1975)
Record low26° (1960)
Mon, 0955° / 38°0.07
55 °
Mount Rock, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation33%
Record high74° (1975)
Record low25° (2019)
Tue, 1054° / 39°0.15
54 °
Mount Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation38%
Record high72° (2020)
Record low24° (2017)
Wed, 1153° / 38°0.13
53 °
Mount Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.13 in
Chance of precipitation27%
Record high70° (2006)
Record low19° (2017)
Thu, 1251° / 37°0.17
51 °
Mount Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.17 in
Chance of precipitation38%
Record high70° (1964)
Record low25° (2019)
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 Mount Rock, 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 Mount Rock, 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.