Monthly outlook for Mount Vernon, PA: average high 61.2°, average low 43.5°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 3 November (67°), the coolest 24 October (36.9°).
61.2°/43.5°
Average high / low
+0.9°
Above normal
2 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
61.3°
60.1°
+0.6°
31 October – 9 November
61°
57.3°
+2.1°
10 November – 19 November
at normal
52.1°
—
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).
Thu, 2266° / 43°0
66 °
Mount Vernon, Thursday, 22 October
Clear. High 66°, low 43°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity45%
Visibility6.2 mi
Dew point36°
Fri, 2358° / 44°0
58 °
Mount Vernon, Friday, 23 October
Clear. High 58°, low 44°.
Pressure30.39 inHg
Wind7.8 mph NE
Humidity49%
Visibility6.2 mi
Dew point36°
Sat, 2458° / 37°0
58 °
Mount Vernon, Saturday, 24 October
Clear. High 58°, low 37°.
Pressure30.56 inHg
Wind2.2 mph E
Humidity46%
Visibility6.2 mi
Dew point35°
Sun, 2562° / 41°0
62 °
Mount Vernon, Sunday, 25 October
Clear. High 62°, low 41°.
Pressure30.56 inHg
Wind0.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point42°
Mon, 2663° / 43°0
63 °
Mount Vernon, Monday, 26 October
Clear. High 63°, low 43°.
Pressure30.42 inHg
Wind6.1 mph NW
Humidity71%
Visibility—
Dew point46°
Tue, 2763° / 45°0
63 °
Mount Vernon, Tuesday, 27 October
Overcast. High 63°, low 45°.
Pressure30.30 inHg
Wind7.6 mph N
Humidity70%
Visibility—
Dew point46°
Wed, 2865° / 51°0
65 °
Mount Vernon, Wednesday, 28 October
Overcast. High 65°, low 51°.
Pressure30.30 inHg
Wind8.1 mph S
Humidity80%
Visibility—
Dew point53°
Thu, 2962° / 44°0
62 °
Mount Vernon, Thursday, 29 October
Overcast. High 62°, low 44°.
Pressure29.83 inHg
Wind19.7 mph NW
Humidity60%
Visibility—
Dew point46°
Fri, 3052° / 38°0
52 °
Mount Vernon, Friday, 30 October
Clear. High 52°, low 38°.
Pressure30.18 inHg
Wind15.7 mph NW
Humidity54%
Visibility—
Dew point30°
Sat, 3158° / 37°0
58 °
Mount Vernon, Saturday, 31 October
Mostly clear. High 58°, low 37°.
Pressure30.36 inHg
Wind7.8 mph S
Humidity46%
Visibility—
Dew point30°
Sun, 0163° / 42°0
63 °
Mount Vernon, Sunday, 1 November
Overcast. High 63°, low 42°.
Pressure30.45 inHg
Wind11 mph SW
Humidity49%
Visibility—
Dew point36°
Mon, 0262° / 51°0
62 °
Mount Vernon, Monday, 2 November
Light rain. High 62°, low 51°.
Pressure30.39 inHg
Wind6.7 mph S
Humidity70%
Visibility—
Dew point50°
Tue, 0367° / 58°0.79
67 °
Mount Vernon, Tuesday, 3 November
Rain. High 67°, low 58°.
Pressure30.00 inHg
Wind16 mph S
Humidity95%
Visibility—
Dew point61°
Wed, 0462° / 41°0.02
62 °
Mount Vernon, Wednesday, 4 November
Light rain. High 62°, low 41°.
Pressure30.24 inHg
Wind17.6 mph NW
Humidity75%
Visibility—
Dew point41°
Thu, 0553° / 38°0.04
53 °
Mount Vernon, Thursday, 5 November
Light rain. High 53°, low 38°.
Pressure30.36 inHg
Wind13.5 mph E
Humidity63%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0656° / 42°0.07
56 °
Mount Vernon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation32%
Record high79° (2024)
Record low29° (1967)
Sat, 0755° / 42°0.07
55 °
Mount Vernon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2024)
Record low27° (1962)
Sun, 0855° / 41°0.13
55 °
Mount Vernon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation20%
Record high73° (2020)
Record low28° (1960)
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)
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.