Monthly outlook for Mount Vernon, PA: average high 60.4°, average low 45.4°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 3.3 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 29 October (69.7°), the coolest 12 November (34.8°).
60.4°/45.4°
Average high / low
+1.9°
Above normal
3 / 4
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
64.6°
58.2°
+3.5°
7 November – 16 November
53.3°
53.4°
-0°
17 November – 26 November
at normal
49.9°
—
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, 2970° / 44°0
70 °
Mount Vernon, Thursday, 29 October
Overcast. High 70°, low 44°.
Pressure30.27 inHg
Wind8.5 mph SW
Humidity67%
Visibility3.3 mi
Dew point53°
Fri, 3068° / 50°0
68 °
Mount Vernon, Friday, 30 October
Clear. High 68°, low 50°.
Pressure30.15 inHg
Wind12.5 mph NW
Humidity59%
Visibility6.2 mi
Dew point52°
Sat, 3158° / 44°0
58 °
Mount Vernon, Saturday, 31 October
Overcast. High 58°, low 44°.
Pressure30.45 inHg
Wind5.7 mph N
Humidity54%
Visibility6.2 mi
Dew point40°
Sun, 0163° / 49°0
63 °
Mount Vernon, Sunday, 1 November
Partly cloudy. High 63°, low 49°.
Pressure30.42 inHg
Wind8.8 mph S
Humidity61%
Visibility6.2 mi
Dew point47°
Mon, 0267° / 47°0
67 °
Mount Vernon, Monday, 2 November
Overcast. High 67°, low 47°.
Pressure30.33 inHg
Wind4.1 mph S
Humidity67%
Visibility—
Dew point47°
Tue, 0365° / 50°0
65 °
Mount Vernon, Tuesday, 3 November
Partly cloudy. High 65°, low 50°.
Pressure30.24 inHg
Wind6.2 mph E
Humidity71%
Visibility—
Dew point51°
Wed, 0462° / 52°0
62 °
Mount Vernon, Wednesday, 4 November
Overcast. High 62°, low 52°.
Pressure30.15 inHg
Wind11.2 mph E
Humidity89%
Visibility—
Dew point53°
Thu, 0564° / 57°3.09
64 °
Mount Vernon, Thursday, 5 November
Heavy rain. High 64°, low 57°.
Pressure29.80 inHg
Wind23.6 mph E
Humidity97%
Visibility—
Dew point58°
Fri, 0664° / 46°0.02
64 °
Mount Vernon, Friday, 6 November
Light rain. High 64°, low 46°.
Pressure29.50 inHg
Wind18.4 mph S
Humidity89%
Visibility—
Dew point58°
Sat, 0753° / 40°0
53 °
Mount Vernon, Saturday, 7 November
Clear. High 53°, low 40°.
Pressure29.97 inHg
Wind15.4 mph W
Humidity57%
Visibility—
Dew point34°
Sun, 0852° / 38°0
52 °
Mount Vernon, Sunday, 8 November
Partly cloudy. High 52°, low 38°.
Pressure30.21 inHg
Wind12.4 mph W
Humidity58%
Visibility—
Dew point33°
Mon, 0956° / 41°0
56 °
Mount Vernon, Monday, 9 November
Light rain. High 56°, low 41°.
Pressure30.18 inHg
Wind8.1 mph S
Humidity55%
Visibility—
Dew point33°
Tue, 1055° / 51°0.11
55 °
Mount Vernon, Tuesday, 10 November
Light rain. High 55°, low 51°.
Pressure29.83 inHg
Wind13.6 mph S
Humidity95%
Visibility—
Dew point50°
Wed, 1158° / 39°0.08
58 °
Mount Vernon, Wednesday, 11 November
Light rain. High 58°, low 39°.
Pressure29.68 inHg
Wind22.9 mph W
Humidity72%
Visibility—
Dew point40°
Thu, 1245° / 35°0
45 °
Mount Vernon, Thursday, 12 November
Partly cloudy. High 45°, low 35°.
Pressure29.80 inHg
Wind20.5 mph NW
Humidity57%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2348° / 35°0.07
48 °
Mount Vernon, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high66° (1979)
Record low17° (2018)
Tue, 2449° / 36°0.13
49 °
Mount Vernon, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation32%
Record high67° (1979)
Record low16° (1989)
Wed, 2549° / 35°0.12
49 °
Mount Vernon, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation38%
Record high68° (1979)
Record low20° (1989)
Thu, 2651° / 37°0.15
51 °
Mount Vernon, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation37%
Record high66° (1999)
Record low25° (2005)
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.