Monthly outlook for Upper Mifflin, PA: average high 66.3°, average low 46.8°. That is 3.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 16 October (84°), the coolest 18 October (37.3°).
66.3°/46.8°
Average high / low
+3.2°
Above normal
1 / 4
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
65.5°
61.6°
+2.2°
25 October – 3 November
67.7°
58.6°
+5.1°
4 November – 13 November
at normal
53.9°
—
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).
Fri, 1684° / 62°0.05
84 °
Upper Mifflin, Friday, 16 October
Rain. High 84°, low 62°.
Pressure29.74 inHg
Wind9.7 mph S
Humidity75%
Visibility6.2 mi
Dew point66°
Sat, 1761° / 42°0.01
61 °
Upper Mifflin, Saturday, 17 October
Light rain. High 61°, low 42°.
Pressure30.30 inHg
Wind12.6 mph N
Humidity50%
Visibility6.2 mi
Dew point29°
Sun, 1858° / 37°0
58 °
Upper Mifflin, Sunday, 18 October
Clear. High 58°, low 37°.
Pressure30.62 inHg
Wind1.5 mph E
Humidity46%
Visibility6.2 mi
Dew point33°
Mon, 1962° / 43°0
62 °
Upper Mifflin, Monday, 19 October
Clear. High 62°, low 43°.
Pressure30.50 inHg
Wind3.5 mph NE
Humidity48%
Visibility6.2 mi
Dew point38°
Tue, 2068° / 46°0
68 °
Upper Mifflin, Tuesday, 20 October
Clear. High 68°, low 46°.
Pressure30.27 inHg
Wind8.8 mph N
Humidity38%
Visibility—
Dew point33°
Wed, 2162° / 45°0
62 °
Upper Mifflin, Wednesday, 21 October
Clear. High 62°, low 45°.
Pressure30.33 inHg
Wind8.6 mph N
Humidity50%
Visibility—
Dew point38°
Thu, 2261° / 41°0
61 °
Upper Mifflin, Thursday, 22 October
Clear. High 61°, low 41°.
Pressure30.45 inHg
Wind5.3 mph SE
Humidity64%
Visibility—
Dew point40°
Fri, 2366° / 43°0
66 °
Upper Mifflin, Friday, 23 October
Clear. High 66°, low 43°.
Pressure30.36 inHg
Wind3.8 mph N
Humidity65%
Visibility—
Dew point44°
Sat, 2466° / 48°0
66 °
Upper Mifflin, Saturday, 24 October
Clear. High 66°, low 48°.
Pressure30.36 inHg
Wind5.1 mph NE
Humidity67%
Visibility—
Dew point48°
Sun, 2562° / 43°0
62 °
Upper Mifflin, Sunday, 25 October
Clear. High 62°, low 43°.
Pressure30.47 inHg
Wind4.3 mph SW
Humidity65%
Visibility—
Dew point42°
Mon, 2669° / 48°0
69 °
Upper Mifflin, Monday, 26 October
Partly cloudy. High 69°, low 48°.
Pressure30.45 inHg
Wind7.2 mph NW
Humidity66%
Visibility—
Dew point49°
Tue, 2766° / 45°0
66 °
Upper Mifflin, Tuesday, 27 October
Overcast. High 66°, low 45°.
Pressure30.47 inHg
Wind3 mph E
Humidity54%
Visibility—
Dew point41°
Wed, 2867° / 46°0
67 °
Upper Mifflin, Wednesday, 28 October
Overcast. High 67°, low 46°.
Pressure30.45 inHg
Wind5 mph SW
Humidity60%
Visibility—
Dew point43°
Thu, 2970° / 50°0
70 °
Upper Mifflin, Thursday, 29 October
Mostly clear. High 70°, low 50°.
Pressure30.30 inHg
Wind7.3 mph SW
Humidity64%
Visibility—
Dew point49°
Fri, 3071° / 51°0
71 °
Upper Mifflin, Friday, 30 October
Overcast. High 71°, low 51°.
Pressure30.15 inHg
Wind6.1 mph SW
Humidity60%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.