Monthly outlook for Mount Vernon, PA: average high 61.6°, average low 45.1°. That is 1.8° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 30 October (71.1°), the coolest 25 October (34.1°).
61.6°/45.1°
Average high / low
+1.8°
Above normal
3 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
64.3°
59.4°
+2.7°
3 November – 12 November
57.1°
55.6°
+0.8°
13 November – 22 November
at normal
50.8°
—
October records over 66 years
90.5°2 October 2019All-time high
27.9°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Lincoln University (5 mi).
Sun, 2563° / 34°0
63 °
Mount Vernon, Sunday, 25 October
Clear. High 63°, low 34°.
Pressure30.59 inHg
Wind2.6 mph NW
Humidity39%
Visibility6.2 mi
Dew point34°
Mon, 2666° / 37°0
66 °
Mount Vernon, Monday, 26 October
Clear. High 66°, low 37°.
Pressure30.33 inHg
Wind7.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point46°
Tue, 2763° / 48°0
63 °
Mount Vernon, Tuesday, 27 October
Mostly clear. High 63°, low 48°.
Pressure30.36 inHg
Wind4.5 mph N
Humidity53%
Visibility6.2 mi
Dew point43°
Wed, 2860° / 44°0
60 °
Mount Vernon, Wednesday, 28 October
Overcast. High 60°, low 44°.
Pressure30.47 inHg
Wind5.7 mph SE
Humidity55%
Visibility6.2 mi
Dew point40°
Thu, 2966° / 48°0
66 °
Mount Vernon, Thursday, 29 October
Overcast. High 66°, low 48°.
Pressure30.33 inHg
Wind9.6 mph SW
Humidity83%
Visibility—
Dew point51°
Fri, 3071° / 52°0
71 °
Mount Vernon, Friday, 30 October
Clear. High 71°, low 52°.
Pressure30.21 inHg
Wind8.3 mph NW
Humidity60%
Visibility—
Dew point49°
Sat, 3164° / 48°0
64 °
Mount Vernon, Saturday, 31 October
Partly cloudy. High 64°, low 48°.
Pressure30.36 inHg
Wind7.4 mph NE
Humidity58%
Visibility—
Dew point44°
Sun, 0163° / 51°0.02
63 °
Mount Vernon, Sunday, 1 November
Light rain. High 63°, low 51°.
Pressure30.30 inHg
Wind9 mph E
Humidity73%
Visibility—
Dew point50°
Mon, 0264° / 58°0.61
64 °
Mount Vernon, Monday, 2 November
Rain. High 64°, low 58°.
Pressure29.71 inHg
Wind11.3 mph E
Humidity99%
Visibility—
Dew point62°
Tue, 0362° / 45°0.07
62 °
Mount Vernon, Tuesday, 3 November
Light rain. High 62°, low 45°.
Pressure29.53 inHg
Wind10.9 mph S
Humidity76%
Visibility—
Dew point47°
Wed, 0457° / 47°0.33
57 °
Mount Vernon, Wednesday, 4 November
Rain. High 57°, low 47°.
Pressure29.62 inHg
Wind13.1 mph SW
Humidity93%
Visibility—
Dew point49°
Thu, 0556° / 45°0.02
56 °
Mount Vernon, Thursday, 5 November
Light rain. High 56°, low 45°.
Pressure29.91 inHg
Wind12.1 mph NW
Humidity75%
Visibility—
Dew point41°
Fri, 0659° / 44°0
59 °
Mount Vernon, Friday, 6 November
Clear. High 59°, low 44°.
Pressure30.15 inHg
Wind8.5 mph N
Humidity68%
Visibility—
Dew point43°
Sat, 0753° / 45°0.01
53 °
Mount Vernon, Saturday, 7 November
Light rain. High 53°, low 45°.
Pressure30.27 inHg
Wind11.3 mph E
Humidity84%
Visibility—
Dew point46°
Sun, 0856° / 40°0
56 °
Mount Vernon, Sunday, 8 November
Overcast. High 56°, low 40°.
Pressure30.12 inHg
Wind15 mph NW
Humidity65%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0955° / 41°0.09
55 °
Mount Vernon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (1975)
Record low23° (2019)
Tue, 1056° / 41°0.16
56 °
Mount Vernon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.16 in
Chance of precipitation33%
Record high70° (1999)
Record low26° (2017)
Wed, 1154° / 41°0.13
54 °
Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.13 in
Chance of precipitation28%
Record high69° (2006)
Record low20° (2017)
Thu, 1252° / 40°0.19
52 °
Mount Vernon, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.19 in
Chance of precipitation38%
Record high68° (2022)
Record low27° (1987)
Fri, 1351° / 38°0.12
51 °
Mount Vernon, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation35%
Record high69° (1964)
Record low20° (2019)
Sat, 1451° / 38°0.07
51 °
Mount Vernon, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation18%
Record high68° (1993)
Record low24° (1986)
Sun, 1553° / 39°0.1
53 °
Mount Vernon, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation33%
Record high74° (1993)
Record low25° (1967)
Mon, 1652° / 38°0.14
52 °
Mount Vernon, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation27%
Record high70° (2005)
Record low22° (1967)
Tue, 1751° / 37°0.07
51 °
Mount Vernon, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (1987)
Record low27° (1980)
Wed, 1851° / 37°0.06
51 °
Mount Vernon, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (1963)
Record low25° (2014)
Thu, 1951° / 37°0.09
51 °
Mount Vernon, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (2016)
Record low21° (2014)
Fri, 2051° / 37°0.08
51 °
Mount Vernon, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (1985)
Record low26° (2022)
Sat, 2150° / 36°0.11
50 °
Mount Vernon, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation27%
Record high68° (1991)
Record low22° (1987)
Sun, 2249° / 36°0.13
49 °
Mount Vernon, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation32%
Record high68° (2007)
Record low19° (2018)
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 Mount Vernon, 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 Mount Vernon, 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.