Monthly outlook for Mount Hermon, NJ: average high 62.9°, average low 43.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (72.9°), the coolest 15 October (37.9°).
62.9°/43.7°
Average high / low
+1.3°
Above normal
5 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
64.4°
61.7°
+1.5°
19 October – 28 October
60.3°
58.1°
+1.2°
29 October – 7 November
at normal
54.6°
—
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 (12 mi).
Sat, 1070° / 43°0
70 °
Mount Hermon, Saturday, 10 October
Overcast. High 70°, low 43°.
Pressure30.47 inHg
Wind3.3 mph E
Humidity44%
Visibility6.2 mi
Dew point42°
Sun, 1156° / 50°0.38
56 °
Mount Hermon, Sunday, 11 October
Rain. High 56°, low 50°.
Pressure30.33 inHg
Wind6.2 mph E
Humidity98%
Visibility1.8 mi
Dew point55°
Mon, 1270° / 54°0.26
70 °
Mount Hermon, Monday, 12 October
Rain. High 70°, low 54°.
Pressure29.68 inHg
Wind12.4 mph N
Humidity68%
Visibility6.2 mi
Dew point58°
Tue, 1373° / 49°0.06
73 °
Mount Hermon, Tuesday, 13 October
Light rain. High 73°, low 49°.
Pressure29.83 inHg
Wind7.7 mph W
Humidity72%
Visibility—
Dew point56°
Wed, 1467° / 49°0
67 °
Mount Hermon, Wednesday, 14 October
Light rain. High 67°, low 49°.
Pressure29.97 inHg
Wind7.7 mph N
Humidity64%
Visibility—
Dew point49°
Thu, 1559° / 38°0
59 °
Mount Hermon, Thursday, 15 October
Partly cloudy. High 59°, low 38°.
Pressure30.30 inHg
Wind4.1 mph S
Humidity45%
Visibility—
Dew point30°
Fri, 1666° / 43°0.03
66 °
Mount Hermon, Friday, 16 October
Light rain. High 66°, low 43°.
Pressure30.15 inHg
Wind11.4 mph S
Humidity89%
Visibility—
Dew point53°
Sat, 1760° / 48°0.09
60 °
Mount Hermon, Saturday, 17 October
Light rain. High 60°, low 48°.
Pressure30.06 inHg
Wind6.2 mph N
Humidity62%
Visibility—
Dew point41°
Sun, 1854° / 41°0.69
54 °
Mount Hermon, Sunday, 18 October
Rain. High 54°, low 41°.
Pressure30.24 inHg
Wind9.3 mph N
Humidity74%
Visibility—
Dew point43°
Mon, 1955° / 38°0
55 °
Mount Hermon, Monday, 19 October
Overcast. High 55°, low 38°.
Pressure30.42 inHg
Wind5.7 mph NE
Humidity60%
Visibility—
Dew point35°
Tue, 2058° / 38°0
58 °
Mount Hermon, Tuesday, 20 October
Overcast. High 58°, low 38°.
Pressure30.47 inHg
Wind9 mph NE
Humidity54%
Visibility—
Dew point33°
Wed, 2160° / 41°0
60 °
Mount Hermon, Wednesday, 21 October
Clear. High 60°, low 41°.
Pressure30.50 inHg
Wind10.7 mph NE
Humidity56%
Visibility—
Dew point36°
Thu, 2261° / 38°0
61 °
Mount Hermon, Thursday, 22 October
Clear. High 61°, low 38°.
Pressure30.36 inHg
Wind5.3 mph NE
Humidity58%
Visibility—
Dew point37°
Fri, 2364° / 41°0
64 °
Mount Hermon, Friday, 23 October
Clear. High 64°, low 41°.
Pressure30.24 inHg
Wind7.2 mph NE
Humidity54%
Visibility—
Dew point38°
Sat, 2464° / 42°0
64 °
Mount Hermon, Saturday, 24 October
Partly cloudy. High 64°, low 42°.
Pressure30.18 inHg
Wind6 mph NE
Humidity57%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 43°0.11
57 °
Mount Hermon, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high74° (1963)
Record low32° (1962)
Mon, 2657° / 43°0.15
57 °
Mount Hermon, Monday, 26 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.15 in
Chance of precipitation32%
Record high77° (2023)
Record low32° (1972)
Tue, 2757° / 42°0.17
57 °
Mount Hermon, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.17 in
Chance of precipitation32%
Record high78° (1963)
Record low28° (1976)
Wed, 2856° / 41°0.17
56 °
Mount Hermon, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.17 in
Chance of precipitation33%
Record high78° (2023)
Record low27° (1976)
Thu, 2955° / 40°0.19
55 °
Mount Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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 Hermon, 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)
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 Hermon, 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 Hermon, 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.