Monthly outlook for Mount Hermon, MA: average high 55.3°, average low 40.3°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 19 October (66.8°), the coolest 18 October (30°).
55.3°/40.3°
Average high / low
−0.7°
Below normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
60.6°
57.8°
+1.5°
24 October – 2 November
46.5°
54°
-4.2°
3 November – 12 November
at normal
50.2°
—
October records over 66 years
83.1°5 October 2007All-time high
22.6°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Erving (5 mi).
Thu, 1557° / 48°0
57 °
Mount Hermon, Thursday, 15 October
Overcast. High 57°, low 48°.
Pressure30.24 inHg
Wind4.7 mph N
Humidity46%
Visibility6.2 mi
Dew point35°
Fri, 1664° / 49°0.82
64 °
Mount Hermon, Friday, 16 October
Heavy rain. High 64°, low 49°.
Pressure29.77 inHg
Wind11.5 mph S
Humidity97%
Visibility4.3 mi
Dew point55°
Sat, 1756° / 36°0.01
56 °
Mount Hermon, Saturday, 17 October
Light rain. High 56°, low 36°.
Pressure30.03 inHg
Wind12.9 mph NW
Humidity51%
Visibility6.2 mi
Dew point26°
Sun, 1853° / 30°0
53 °
Mount Hermon, Sunday, 18 October
Clear. High 53°, low 30°.
Pressure30.56 inHg
Wind6.2 mph SW
Humidity52%
Visibility—
Dew point27°
Mon, 1967° / 34°0
67 °
Mount Hermon, Monday, 19 October
Clear. High 67°, low 34°.
Pressure30.53 inHg
Wind6.9 mph S
Humidity50%
Visibility—
Dew point36°
Tue, 2066° / 45°0
66 °
Mount Hermon, Tuesday, 20 October
Overcast. High 66°, low 45°.
Pressure30.27 inHg
Wind7.5 mph W
Humidity60%
Visibility—
Dew point44°
Wed, 2165° / 43°0
65 °
Mount Hermon, Wednesday, 21 October
Clear. High 65°, low 43°.
Pressure30.21 inHg
Wind3.2 mph N
Humidity52%
Visibility—
Dew point39°
Thu, 2264° / 42°0.21
64 °
Mount Hermon, Thursday, 22 October
Rain. High 64°, low 42°.
Pressure29.88 inHg
Wind12.6 mph S
Humidity69%
Visibility—
Dew point48°
Fri, 2348° / 38°0
48 °
Mount Hermon, Friday, 23 October
Partly cloudy. High 48°, low 38°.
Pressure29.88 inHg
Wind12.4 mph NW
Humidity55%
Visibility—
Dew point28°
Sat, 2447° / 37°0.02
47 °
Mount Hermon, Saturday, 24 October
Light rain. High 47°, low 37°.
Pressure29.62 inHg
Wind15.9 mph NW
Humidity58%
Visibility—
Dew point32°
Sun, 2554° / 41°0
54 °
Mount Hermon, Sunday, 25 October
Clear. High 54°, low 41°.
Pressure29.74 inHg
Wind13.3 mph NW
Humidity51%
Visibility—
Dew point31°
Mon, 2646° / 41°0.05
46 °
Mount Hermon, Monday, 26 October
Light rain. High 46°, low 41°.
Pressure29.65 inHg
Wind11.5 mph W
Humidity92%
Visibility—
Dew point42°
Tue, 2743° / 40°0
43 °
Mount Hermon, Tuesday, 27 October
Overcast. High 43°, low 40°.
Pressure29.85 inHg
Wind9.2 mph W
Humidity82%
Visibility—
Dew point37°
Wed, 2845° / 34°0
45 °
Mount Hermon, Wednesday, 28 October
Overcast. High 45°, low 34°.
Pressure29.77 inHg
Wind9.8 mph W
Humidity59%
Visibility—
Dew point30°
Thu, 2945° / 31°0
45 °
Mount Hermon, Thursday, 29 October
Partly cloudy. High 45°, low 31°.
Pressure29.77 inHg
Wind9.6 mph NW
Humidity55%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3052° / 37°0.12
52 °
Mount Hermon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.12 in
Chance of precipitation27%
Record high67° (1989)
Record low27° (2020)
Sat, 3153° / 38°0.09
53 °
Mount Hermon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high75° (2024)
Record low23° (2020)
Sun, 0154° / 39°0.11
54 °
Mount Hermon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2024)
Record low28° (2020)
Mon, 0254° / 39°0.1
54 °
Mount Hermon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation28%
Record high73° (1982)
Record low25° (2023)
Tue, 0354° / 38°0.15
54 °
Mount Hermon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.15 in
Chance of precipitation35%
Record high69° (2017)
Record low26° (2002)
Wed, 0452° / 38°0.06
52 °
Mount Hermon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1987)
Record low27° (2013)
Thu, 0552° / 38°0.14
52 °
Mount Hermon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation40%
Record high73° (2022)
Record low27° (1965)
Fri, 0651° / 38°0.13
51 °
Mount Hermon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation37%
Record high75° (2024)
Record low26° (2021)
Sat, 0750° / 36°0.06
50 °
Mount Hermon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (2020)
Record low25° (1962)
Sun, 0849° / 36°0.12
49 °
Mount Hermon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation32%
Record high69° (2020)
Record low24° (2019)
Mon, 0949° / 35°0.1
49 °
Mount Hermon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation27%
Record high69° (2020)
Record low21° (2019)
Tue, 1050° / 36°0.14
50 °
Mount Hermon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation43%
Record high71° (2020)
Record low22° (2017)
Wed, 1148° / 36°0.15
48 °
Mount Hermon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (2020)
Record low18° (2017)
Thu, 1247° / 34°0.15
47 °
Mount Hermon, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation37%
Record high66° (2022)
Record low20° (2019)
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, MA 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, MA 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.