Monthly outlook for Old Port, PA: average high 61.1°, average low 41.5°. That is 1° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 16 October (73.2°), the coolest 18 October (34.6°).
61.1°/41.5°
Average high / low
+1°
Above normal
1 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
62.9°
60.3°
+1.4°
26 October – 4 November
58.1°
57.5°
+0.3°
5 November – 14 November
at normal
52.6°
—
October records over 66 years
88.5°8 October 2007All-time high
19.9°30 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Mifflintown (3 mi).
Sat, 1754° / 39°0
54 °
Old Port, Saturday, 17 October
Light rain. High 54°, low 39°.
Pressure30.30 inHg
Wind10.6 mph N
Humidity49%
Visibility6.2 mi
Dew point30°
Sun, 1860° / 35°0
60 °
Old Port, Sunday, 18 October
Clear. High 60°, low 35°.
Pressure30.62 inHg
Wind1.8 mph W
Humidity53%
Visibility6.2 mi
Dew point37°
Mon, 1968° / 39°0
68 °
Old Port, Monday, 19 October
Clear. High 68°, low 39°.
Pressure30.47 inHg
Wind0.7 mph W
Humidity48%
Visibility6.2 mi
Dew point41°
Tue, 2069° / 40°0
69 °
Old Port, Tuesday, 20 October
Clear. High 69°, low 40°.
Pressure30.33 inHg
Wind3.2 mph N
Humidity51%
Visibility6.2 mi
Dew point44°
Wed, 2165° / 44°0
65 °
Old Port, Wednesday, 21 October
Clear. High 65°, low 44°.
Pressure30.36 inHg
Wind3.1 mph N
Humidity65%
Visibility—
Dew point46°
Thu, 2257° / 38°0
57 °
Old Port, Thursday, 22 October
Clear. High 57°, low 38°.
Pressure30.30 inHg
Wind3.4 mph SE
Humidity69%
Visibility—
Dew point39°
Fri, 2364° / 39°0
64 °
Old Port, Friday, 23 October
Clear. High 64°, low 39°.
Pressure30.18 inHg
Wind6.4 mph NW
Humidity56%
Visibility—
Dew point38°
Sat, 2461° / 44°0
61 °
Old Port, Saturday, 24 October
Clear. High 61°, low 44°.
Pressure30.36 inHg
Wind6.6 mph NE
Humidity62%
Visibility—
Dew point42°
Sun, 2558° / 42°0
58 °
Old Port, Sunday, 25 October
Clear. High 58°, low 42°.
Pressure30.47 inHg
Wind2.7 mph E
Humidity57%
Visibility—
Dew point36°
Mon, 2662° / 37°0
62 °
Old Port, Monday, 26 October
Partly cloudy. High 62°, low 37°.
Pressure30.27 inHg
Wind4.4 mph SW
Humidity47%
Visibility—
Dew point32°
Tue, 2757° / 42°0
57 °
Old Port, Tuesday, 27 October
Overcast. High 57°, low 42°.
Pressure30.09 inHg
Wind16.4 mph W
Humidity58%
Visibility—
Dew point38°
Wed, 2858° / 38°0
58 °
Old Port, Wednesday, 28 October
Clear. High 58°, low 38°.
Pressure30.24 inHg
Wind12.6 mph NW
Humidity56%
Visibility—
Dew point35°
Thu, 2960° / 39°0
60 °
Old Port, Thursday, 29 October
Overcast. High 60°, low 39°.
Pressure30.15 inHg
Wind5.3 mph S
Humidity62%
Visibility—
Dew point37°
Fri, 3059° / 50°0.03
59 °
Old Port, Friday, 30 October
Light rain. High 59°, low 50°.
Pressure29.65 inHg
Wind14.7 mph W
Humidity68%
Visibility—
Dew point47°
Sat, 3153° / 42°0.02
53 °
Old Port, Saturday, 31 October
Light rain. High 53°, low 42°.
Pressure29.91 inHg
Wind12.4 mph NW
Humidity72%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 43°0.07
58 °
Old Port, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.07 in
Chance of precipitation22%
Record high77° (1974)
Record low21° (2002)
Mon, 0258° / 42°0.13
58 °
Old Port, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.13 in
Chance of precipitation25%
Record high78° (1982)
Record low26° (2002)
Tue, 0357° / 41°0.07
57 °
Old Port, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.07 in
Chance of precipitation30%
Record high76° (2003)
Record low26° (2002)
Wed, 0455° / 40°0.08
55 °
Old Port, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high76° (2003)
Record low26° (2021)
Thu, 0556° / 40°0.12
56 °
Old Port, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high73° (2022)
Record low25° (1991)
Fri, 0655° / 40°0.06
55 °
Old Port, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation32%
Record high76° (2024)
Record low27° (1967)
Sat, 0753° / 39°0.09
53 °
Old Port, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation32%
Record high71° (1975)
Record low28° (1962)
Sun, 0854° / 38°0.15
54 °
Old Port, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.15 in
Chance of precipitation25%
Record high72° (1975)
Record low27° (1960)
Mon, 0953° / 38°0.09
53 °
Old Port, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation37%
Record high72° (1975)
Record low23° (2019)
Tue, 1053° / 38°0.16
53 °
Old Port, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation40%
Record high73° (2020)
Record low22° (2017)
Wed, 1152° / 38°0.13
52 °
Old Port, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation30%
Record high69° (2006)
Record low19° (2017)
Thu, 1250° / 37°0.17
50 °
Old Port, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.17 in
Chance of precipitation37%
Record high69° (1964)
Record low23° (2019)
Fri, 1349° / 35°0.07
49 °
Old Port, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1964)
Record low19° (2019)
Sat, 1450° / 36°0.08
50 °
Old Port, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (1989)
Record low19° (1968)
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 Old Port, 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 Old Port, 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.