Monthly outlook for Upper Mifflin, PA: average high 58.6°, average low 39.7°. That is 0.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 20 October (69.1°), the coolest 29 October (28.6°).
58.6°/39.7°
Average high / low
−0.3°
Below normal
2 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.4°
59.8°
+0.3°
30 October – 8 November
55.7°
56.8°
-0.6°
9 November – 18 November
at normal
51.5°
—
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).
Wed, 2164° / 36°0
64 °
Upper Mifflin, Wednesday, 21 October
Clear. High 64°, low 36°.
Pressure30.24 inHg
Wind3.6 mph N
Humidity47%
Visibility6.2 mi
Dew point37°
Thu, 2264° / 42°0
64 °
Upper Mifflin, Thursday, 22 October
Clear. High 64°, low 42°.
Pressure30.09 inHg
Wind8.7 mph NW
Humidity51%
Visibility6.2 mi
Dew point40°
Fri, 2354° / 40°0
54 °
Upper Mifflin, Friday, 23 October
Overcast. High 54°, low 40°.
Pressure30.36 inHg
Wind8.2 mph N
Humidity51%
Visibility6.2 mi
Dew point31°
Sat, 2457° / 34°0
57 °
Upper Mifflin, Saturday, 24 October
Mostly clear. High 57°, low 34°.
Pressure30.56 inHg
Wind5 mph N
Humidity54%
Visibility—
Dew point31°
Sun, 2563° / 38°0
63 °
Upper Mifflin, Sunday, 25 October
Clear. High 63°, low 38°.
Pressure30.59 inHg
Wind4.8 mph SW
Humidity40%
Visibility—
Dew point31°
Mon, 2668° / 47°0
68 °
Upper Mifflin, Monday, 26 October
Overcast. High 68°, low 47°.
Pressure30.30 inHg
Wind6.7 mph W
Humidity59%
Visibility—
Dew point46°
Tue, 2766° / 53°0
66 °
Upper Mifflin, Tuesday, 27 October
Overcast. High 66°, low 53°.
Pressure30.12 inHg
Wind9.7 mph SW
Humidity63%
Visibility—
Dew point49°
Wed, 2851° / 35°0
51 °
Upper Mifflin, Wednesday, 28 October
Overcast. High 51°, low 35°.
Pressure30.06 inHg
Wind15.1 mph NW
Humidity54%
Visibility—
Dew point31°
Thu, 2947° / 29°0
47 °
Upper Mifflin, Thursday, 29 October
Clear. High 47°, low 29°.
Pressure30.12 inHg
Wind16.1 mph W
Humidity50%
Visibility—
Dew point23°
Fri, 3051° / 30°0
51 °
Upper Mifflin, Friday, 30 October
Clear. High 51°, low 30°.
Pressure30.24 inHg
Wind8.9 mph W
Humidity44%
Visibility—
Dew point22°
Sat, 3156° / 34°0
56 °
Upper Mifflin, Saturday, 31 October
Clear. High 56°, low 34°.
Pressure30.36 inHg
Wind5.5 mph SW
Humidity38%
Visibility—
Dew point23°
Sun, 0160° / 38°0
60 °
Upper Mifflin, Sunday, 1 November
Partly cloudy. High 60°, low 38°.
Pressure30.47 inHg
Wind9.1 mph S
Humidity46%
Visibility—
Dew point30°
Mon, 0261° / 41°0.08
61 °
Upper Mifflin, Monday, 2 November
Light rain. High 61°, low 41°.
Pressure30.27 inHg
Wind5.9 mph S
Humidity52%
Visibility—
Dew point35°
Tue, 0357° / 51°0.55
57 °
Upper Mifflin, Tuesday, 3 November
Rain. High 57°, low 51°.
Pressure29.85 inHg
Wind12 mph S
Humidity96%
Visibility—
Dew point54°
Wed, 0449° / 47°0.01
49 °
Upper Mifflin, Wednesday, 4 November
Light rain. High 49°, low 47°.
Pressure29.80 inHg
Wind16.1 mph NW
Humidity84%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1054° / 39°0.15
54 °
Upper Mifflin, 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 °
Upper Mifflin, 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 °
Upper Mifflin, 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)
Fri, 1350° / 36°0.07
50 °
Upper Mifflin, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation32%
Record high68° (1964)
Record low19° (2019)
Sat, 1451° / 36°0.07
51 °
Upper Mifflin, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation17%
Record high70° (1989)
Record low20° (1968)
Sun, 1552° / 36°0.12
52 °
Upper Mifflin, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (1973)
Record low24° (1967)
Mon, 1650° / 36°0.13
50 °
Upper Mifflin, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.13 in
Chance of precipitation35%
Record high68° (2001)
Record low20° (1967)
Tue, 1750° / 35°0.09
50 °
Upper Mifflin, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation23%
Record high67° (1963)
Record low14° (1995)
Wed, 1850° / 35°0.07
50 °
Upper Mifflin, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (1963)
Record low22° (2014)
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.