Monthly outlook for Mount Vernon, NJ: average high 61.9°, average low 43.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 16 October (77.2°), the coolest 28 October (31°).
61.9°/43.6°
Average high / low
+1.5°
Above normal
1 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
63.6°
60.3°
+1.8°
23 October – 1 November
59.2°
56.6°
+1.5°
2 November – 11 November
at normal
53.1°
—
October records over 66 years
87.1°2 October 2019All-time high
22.5°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Stillwater (10 mi).
Wed, 1471° / 59°0
71 °
Mount Vernon, Wednesday, 14 October
Light rain. High 71°, low 59°.
Pressure29.91 inHg
Wind8.7 mph W
Humidity56%
Visibility6.2 mi
Dew point61°
Thu, 1565° / 52°0
65 °
Mount Vernon, Thursday, 15 October
Clear. High 65°, low 52°.
Pressure30.24 inHg
Wind2.9 mph NE
Humidity53%
Visibility6.2 mi
Dew point45°
Fri, 1677° / 53°0.33
77 °
Mount Vernon, Friday, 16 October
Rain. High 77°, low 53°.
Pressure29.62 inHg
Wind11.8 mph SW
Humidity92%
Visibility6.2 mi
Dew point65°
Sat, 1749° / 37°0
49 °
Mount Vernon, Saturday, 17 October
Light rain. High 49°, low 37°.
Pressure30.09 inHg
Wind18.2 mph NW
Humidity57%
Visibility—
Dew point31°
Sun, 1858° / 35°0
58 °
Mount Vernon, Sunday, 18 October
Clear. High 58°, low 35°.
Pressure30.47 inHg
Wind9.4 mph SW
Humidity49%
Visibility—
Dew point31°
Mon, 1961° / 37°0
61 °
Mount Vernon, Monday, 19 October
Overcast. High 61°, low 37°.
Pressure30.42 inHg
Wind10.5 mph SW
Humidity52%
Visibility—
Dew point34°
Tue, 2058° / 48°0
58 °
Mount Vernon, Tuesday, 20 October
Overcast. High 58°, low 48°.
Pressure30.39 inHg
Wind3.5 mph SW
Humidity74%
Visibility—
Dew point46°
Wed, 2162° / 43°0
62 °
Mount Vernon, Wednesday, 21 October
Mostly clear. High 62°, low 43°.
Pressure30.45 inHg
Wind5.1 mph NE
Humidity57%
Visibility—
Dew point41°
Thu, 2261° / 40°0
61 °
Mount Vernon, Thursday, 22 October
Partly cloudy. High 61°, low 40°.
Pressure30.47 inHg
Wind5.2 mph SW
Humidity48%
Visibility—
Dew point34°
Fri, 2364° / 44°0
64 °
Mount Vernon, Friday, 23 October
Overcast. High 64°, low 44°.
Pressure30.33 inHg
Wind10.5 mph SW
Humidity69%
Visibility—
Dew point46°
Sat, 2475° / 49°0
75 °
Mount Vernon, Saturday, 24 October
Clear. High 75°, low 49°.
Pressure30.12 inHg
Wind9.7 mph W
Humidity63%
Visibility—
Dew point51°
Sun, 2557° / 44°0
57 °
Mount Vernon, Sunday, 25 October
Partly cloudy. High 57°, low 44°.
Pressure30.06 inHg
Wind7.3 mph NW
Humidity50%
Visibility—
Dew point37°
Mon, 2658° / 37°0
58 °
Mount Vernon, Monday, 26 October
Clear. High 58°, low 37°.
Pressure29.94 inHg
Wind11.1 mph W
Humidity57%
Visibility—
Dew point35°
Tue, 2749° / 34°0
49 °
Mount Vernon, Tuesday, 27 October
Clear. High 49°, low 34°.
Pressure30.18 inHg
Wind13 mph NW
Humidity50%
Visibility—
Dew point29°
Wed, 2851° / 31°0
51 °
Mount Vernon, Wednesday, 28 October
Overcast. High 51°, low 31°.
Pressure30.45 inHg
Wind4 mph S
Humidity48%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2955° / 40°0.19
55 °
Mount Vernon, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.19 in
Chance of precipitation28%
Record high70° (1971)
Record low28° (1965)
Fri, 3055° / 39°0.11
55 °
Mount Vernon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.11 in
Chance of precipitation23%
Record high75° (2024)
Record low28° (2011)
Sat, 3155° / 40°0.05
55 °
Mount Vernon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.05 in
Chance of precipitation17%
Record high78° (2024)
Record low22° (2011)
Sun, 0156° / 42°0.09
56 °
Mount Vernon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (1974)
Record low31° (1968)
Mon, 0256° / 42°0.11
56 °
Mount Vernon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.11 in
Chance of precipitation30%
Record high74° (1982)
Record low28° (1965)
Tue, 0356° / 41°0.09
56 °
Mount Vernon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2003)
Record low29° (1980)
Wed, 0455° / 40°0.06
55 °
Mount Vernon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (1994)
Record low29° (2013)
Thu, 0554° / 40°0.13
54 °
Mount Vernon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.13 in
Chance of precipitation28%
Record high73° (2022)
Record low28° (1991)
Fri, 0653° / 39°0.08
53 °
Mount Vernon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.08 in
Chance of precipitation30%
Record high78° (2024)
Record low27° (2012)
Sat, 0752° / 38°0.07
52 °
Mount Vernon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (2022)
Record low25° (1962)
Sun, 0852° / 38°0.13
52 °
Mount Vernon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation23%
Record high71° (2020)
Record low25° (1960)
Mon, 0952° / 37°0.09
52 °
Mount Vernon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high72° (1975)
Record low23° (2019)
Tue, 1052° / 38°0.16
52 °
Mount Vernon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.16 in
Chance of precipitation40%
Record high70° (2020)
Record low22° (2017)
Wed, 1151° / 38°0.13
51 °
Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation33%
Record high66° (2022)
Record low21° (2017)
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, NJ 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, NJ 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.