Monthly outlook for Mount Vernon, NJ: average high 62°, average low 45.5°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 16 October (76.4°), the coolest 26 October (32.5°).
62°/45.5°
Average high / low
+1.6°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
65.5°
60.3°
+2.9°
23 October – 1 November
56.2°
56.6°
-0.2°
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, 1473° / 59°0.02
73 °
Mount Vernon, Wednesday, 14 October
Light rain. High 73°, low 59°.
Pressure29.88 inHg
Wind10.8 mph W
Humidity61%
Visibility6.2 mi
Dew point62°
Thu, 1563° / 51°0
63 °
Mount Vernon, Thursday, 15 October
Mostly clear. High 63°, low 51°.
Pressure30.24 inHg
Wind3.4 mph NE
Humidity48%
Visibility6.2 mi
Dew point41°
Fri, 1676° / 52°0.3
76 °
Mount Vernon, Friday, 16 October
Rain. High 76°, low 52°.
Pressure29.65 inHg
Wind10.2 mph S
Humidity96%
Visibility5.5 mi
Dew point63°
Sat, 1750° / 37°0
50 °
Mount Vernon, Saturday, 17 October
Mostly clear. High 50°, low 37°.
Pressure30.09 inHg
Wind15.5 mph NW
Humidity52%
Visibility6.2 mi
Dew point28°
Sun, 1858° / 36°0
58 °
Mount Vernon, Sunday, 18 October
Clear. High 58°, low 36°.
Pressure30.53 inHg
Wind9 mph SW
Humidity51%
Visibility—
Dew point32°
Mon, 1960° / 38°0
60 °
Mount Vernon, Monday, 19 October
Overcast. High 60°, low 38°.
Pressure30.50 inHg
Wind9.5 mph SW
Humidity62%
Visibility—
Dew point38°
Tue, 2064° / 47°0
64 °
Mount Vernon, Tuesday, 20 October
Overcast. High 64°, low 47°.
Pressure30.39 inHg
Wind4 mph S
Humidity63%
Visibility—
Dew point46°
Wed, 2169° / 46°0
69 °
Mount Vernon, Wednesday, 21 October
Clear. High 69°, low 46°.
Pressure30.24 inHg
Wind3.8 mph SW
Humidity57%
Visibility—
Dew point45°
Thu, 2269° / 50°0
69 °
Mount Vernon, Thursday, 22 October
Overcast. High 69°, low 50°.
Pressure30.15 inHg
Wind4.6 mph NW
Humidity63%
Visibility—
Dew point51°
Fri, 2354° / 48°0
54 °
Mount Vernon, Friday, 23 October
Overcast. High 54°, low 48°.
Pressure30.27 inHg
Wind5.4 mph NE
Humidity58%
Visibility—
Dew point39°
Sat, 2469° / 52°0.01
69 °
Mount Vernon, Saturday, 24 October
Light rain. High 69°, low 52°.
Pressure29.97 inHg
Wind12.2 mph W
Humidity69%
Visibility—
Dew point52°
Sun, 2554° / 36°0
54 °
Mount Vernon, Sunday, 25 October
Clear. High 54°, low 36°.
Pressure30.21 inHg
Wind11.1 mph N
Humidity47%
Visibility—
Dew point29°
Mon, 2650° / 32°0
50 °
Mount Vernon, Monday, 26 October
Overcast. High 50°, low 32°.
Pressure30.30 inHg
Wind4.4 mph SW
Humidity42%
Visibility—
Dew point22°
Tue, 2751° / 42°0.11
51 °
Mount Vernon, Tuesday, 27 October
Light rain. High 51°, low 42°.
Pressure30.12 inHg
Wind3.1 mph SW
Humidity96%
Visibility—
Dew point44°
Wed, 2859° / 50°0.46
59 °
Mount Vernon, Wednesday, 28 October
Rain. High 59°, low 50°.
Pressure29.83 inHg
Wind9.5 mph SW
Humidity99%
Visibility—
Dew point58°
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.