Monthly outlook for Upper Mifflin, PA: average high 62.1°, average low 46.9°. That is 0° above the climate normal for October. Precipitation is expected on 5 days (about 4.2 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (79.8°), the coolest 18 October (29.7°).
62.1°/46.9°
Average high / low
+0°
Above normal
5 / 4
Wet days / normal
4.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
66.2°
63.2°
+1.7°
21 October – 30 October
55.3°
59.5°
-2.3°
31 October – 9 November
at normal
56.5°
—
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 (9 mi).
Mon, 1271° / 56°0
71 °
Upper Mifflin, Monday, 12 October
Overcast. High 71°, low 56°.
Pressure29.94 inHg
Wind10.2 mph NW
Humidity73%
Visibility6.2 mi
Dew point56°
Tue, 1380° / 56°0
80 °
Upper Mifflin, Tuesday, 13 October
Mostly clear. High 80°, low 56°.
Pressure29.91 inHg
Wind7.7 mph SW
Humidity68%
Visibility6.2 mi
Dew point63°
Wed, 1477° / 64°0.01
77 °
Upper Mifflin, Wednesday, 14 October
Light rain. High 77°, low 64°.
Pressure29.94 inHg
Wind11.7 mph W
Humidity67%
Visibility6.2 mi
Dew point64°
Thu, 1564° / 56°0.13
64 °
Upper Mifflin, Thursday, 15 October
Light rain. High 64°, low 56°.
Pressure30.21 inHg
Wind3.2 mph E
Humidity67%
Visibility6.2 mi
Dew point50°
Fri, 1674° / 52°0.44
74 °
Upper Mifflin, Friday, 16 October
Rain. High 74°, low 52°.
Pressure29.62 inHg
Wind18.8 mph NW
Humidity83%
Visibility—
Dew point67°
Sat, 1751° / 34°0
51 °
Upper Mifflin, Saturday, 17 October
Clear. High 51°, low 34°.
Pressure30.33 inHg
Wind14.8 mph NW
Humidity55%
Visibility—
Dew point31°
Sun, 1852° / 30°0
52 °
Upper Mifflin, Sunday, 18 October
Clear. High 52°, low 30°.
Pressure30.71 inHg
Wind8.8 mph SW
Humidity38%
Visibility—
Dew point19°
Mon, 1964° / 35°0
64 °
Upper Mifflin, Monday, 19 October
Clear. High 64°, low 35°.
Pressure30.53 inHg
Wind6.4 mph SW
Humidity43%
Visibility—
Dew point31°
Tue, 2068° / 45°0
68 °
Upper Mifflin, Tuesday, 20 October
Partly cloudy. High 68°, low 45°.
Pressure30.39 inHg
Wind3.5 mph W
Humidity51%
Visibility—
Dew point41°
Wed, 2166° / 48°0
66 °
Upper Mifflin, Wednesday, 21 October
Overcast. High 66°, low 48°.
Pressure30.36 inHg
Wind6.3 mph SE
Humidity58%
Visibility—
Dew point43°
Thu, 2265° / 46°0
65 °
Upper Mifflin, Thursday, 22 October
Partly cloudy. High 65°, low 46°.
Pressure30.24 inHg
Wind17 mph SE
Humidity70%
Visibility—
Dew point48°
Fri, 2359° / 47°1.8
59 °
Upper Mifflin, Friday, 23 October
Heavy rain. High 59°, low 47°.
Pressure29.77 inHg
Wind17.7 mph SE
Humidity87%
Visibility—
Dew point51°
Sat, 2452° / 43°0.03
52 °
Upper Mifflin, Saturday, 24 October
Light rain. High 52°, low 43°.
Pressure29.68 inHg
Wind20.2 mph NW
Humidity67%
Visibility—
Dew point38°
Sun, 2544° / 40°0
44 °
Upper Mifflin, Sunday, 25 October
Overcast. High 44°, low 40°.
Pressure29.68 inHg
Wind19.4 mph NW
Humidity72%
Visibility—
Dew point34°
Mon, 2646° / 44°0.04
46 °
Upper Mifflin, Monday, 26 October
Light rain. High 46°, low 44°.
Pressure29.80 inHg
Wind9.5 mph NW
Humidity88%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2759° / 44°0.17
59 °
Upper Mifflin, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.17 in
Chance of precipitation25%
Record high80° (1963)
Record low30° (1976)
Wed, 2859° / 43°0.09
59 °
Upper Mifflin, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high78° (1984)
Record low27° (1976)
Thu, 2957° / 41°0.21
57 °
Upper Mifflin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.21 in
Chance of precipitation28%
Record high72° (1971)
Record low28° (1965)
Fri, 3058° / 40°0.1
58 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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)
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 Upper Mifflin, 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 Upper Mifflin, 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.