Monthly outlook for Lancaster, PA: average high 65.6°, average low 46.3°. That is 0.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 16 October (81.4°), the coolest 19 October (30.3°).
65.6°/46.3°
Average high / low
+0.8°
Above normal
3 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
69.6°
65.2°
+2.4°
18 October – 27 October
59°
61.4°
-1.3°
28 October – 6 November
at normal
58.5°
—
October records over 66 years
90.5°2 October 2019All-time high
27.7°24 October 1969All-time low
Fri, 0973° / 44°0
73 °
Lancaster, Friday, 9 October
Clear. High 73°, low 44°.
Pressure30.21 inHg
Wind9.1 mph W
Humidity43%
Visibility6.2 mi
Dew point44°
Sat, 1069° / 45°0
69 °
Lancaster, Saturday, 10 October
Overcast. High 69°, low 45°.
Pressure30.45 inHg
Wind6.2 mph E
Humidity47%
Visibility6.2 mi
Dew point46°
Sun, 1163° / 57°0.44
63 °
Lancaster, Sunday, 11 October
Rain. High 63°, low 57°.
Pressure30.24 inHg
Wind12.3 mph E
Humidity91%
Visibility5.2 mi
Dew point58°
Mon, 1272° / 59°0
72 °
Lancaster, Monday, 12 October
Light rain. High 72°, low 59°.
Pressure29.77 inHg
Wind8.1 mph N
Humidity77%
Visibility6.2 mi
Dew point60°
Tue, 1375° / 59°0.04
75 °
Lancaster, Tuesday, 13 October
Light rain. High 75°, low 59°.
Pressure29.80 inHg
Wind11.5 mph N
Humidity73%
Visibility—
Dew point60°
Wed, 1460° / 47°0
60 °
Lancaster, Wednesday, 14 October
Mostly clear. High 60°, low 47°.
Pressure30.09 inHg
Wind13.5 mph NW
Humidity59%
Visibility—
Dew point40°
Thu, 1560° / 44°0.04
60 °
Lancaster, Thursday, 15 October
Light rain. High 60°, low 44°.
Pressure30.27 inHg
Wind7.1 mph S
Humidity57%
Visibility—
Dew point40°
Fri, 1681° / 55°0.05
81 °
Lancaster, Friday, 16 October
Light rain. High 81°, low 55°.
Pressure30.12 inHg
Wind13.3 mph W
Humidity73%
Visibility—
Dew point60°
Sat, 1767° / 44°0
67 °
Lancaster, Saturday, 17 October
Partly cloudy. High 67°, low 44°.
Pressure30.15 inHg
Wind17.8 mph NW
Humidity59%
Visibility—
Dew point41°
Sun, 1850° / 35°0
50 °
Lancaster, Sunday, 18 October
Clear. High 50°, low 35°.
Pressure30.45 inHg
Wind14.8 mph N
Humidity40%
Visibility—
Dew point22°
Mon, 1952° / 30°0
52 °
Lancaster, Monday, 19 October
Clear. High 52°, low 30°.
Pressure30.65 inHg
Wind5.6 mph N
Humidity40%
Visibility—
Dew point20°
Tue, 2059° / 35°0
59 °
Lancaster, Tuesday, 20 October
Clear. High 59°, low 35°.
Pressure30.47 inHg
Wind5.5 mph NW
Humidity41%
Visibility—
Dew point26°
Wed, 2163° / 40°0
63 °
Lancaster, Wednesday, 21 October
Clear. High 63°, low 40°.
Pressure30.42 inHg
Wind7.2 mph SE
Humidity45%
Visibility—
Dew point33°
Thu, 2265° / 43°0
65 °
Lancaster, Thursday, 22 October
Clear. High 65°, low 43°.
Pressure30.24 inHg
Wind8.7 mph SW
Humidity57%
Visibility—
Dew point41°
Fri, 2365° / 50°0
65 °
Lancaster, Friday, 23 October
Clear. High 65°, low 50°.
Pressure30.15 inHg
Wind8.3 mph NW
Humidity66%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2461° / 47°0.12
61 °
Lancaster, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.12 in
Chance of precipitation32%
Record high79° (2001)
Record low28° (1969)
Sun, 2560° / 47°0.13
60 °
Lancaster, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.13 in
Chance of precipitation32%
Record high75° (2021)
Record low34° (1962)
Mon, 2660° / 46°0.11
60 °
Lancaster, Monday, 26 October
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.11 in
Chance of precipitation35%
Record high77° (2023)
Record low32° (1962)
Tue, 2760° / 46°0.19
60 °
Lancaster, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.19 in
Chance of precipitation28%
Record high80° (1963)
Record low31° (1976)
Wed, 2860° / 45°0.13
60 °
Lancaster, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.13 in
Chance of precipitation25%
Record high79° (1984)
Record low29° (1976)
Thu, 2958° / 44°0.23
58 °
Lancaster, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.23 in
Chance of precipitation25%
Record high74° (1984)
Record low30° (1965)
Fri, 3058° / 42°0.1
58 °
Lancaster, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.1 in
Chance of precipitation25%
Record high78° (2016)
Record low31° (2011)
Sat, 3159° / 44°0.05
59 °
Lancaster, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.05 in
Chance of precipitation20%
Record high81° (2024)
Record low29° (1988)
Sun, 0160° / 46°0.07
60 °
Lancaster, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.07 in
Chance of precipitation27%
Record high78° (1974)
Record low35° (2011)
Mon, 0260° / 46°0.11
60 °
Lancaster, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (1971)
Record low31° (1965)
Tue, 0359° / 44°0.07
59 °
Lancaster, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation28%
Record high77° (2003)
Record low32° (1996)
Wed, 0457° / 43°0.07
57 °
Lancaster, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.07 in
Chance of precipitation22%
Record high75° (1987)
Record low29° (2021)
Thu, 0557° / 43°0.1
57 °
Lancaster, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.1 in
Chance of precipitation28%
Record high74° (1961)
Record low27° (1991)
Fri, 0656° / 42°0.07
56 °
Lancaster, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation27%
Record high80° (2024)
Record low27° (2021)
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 Lancaster, 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 Lancaster, 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.