Monthly outlook for Williamstown, MA: average high 51.5°, average low 35.2°. That is 2.6° below the climate normal for October. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 12 October (65°), the coolest 18 October (20.1°).
51.5°/35.2°
Average high / low
−2.6°
Below normal
7 / 6
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
51.1°
57.2°
-3.4°
21 October – 30 October
52.1°
53.4°
-0.8°
31 October – 9 November
at normal
50.2°
—
October records over 66 years
82.9°4 October 2023All-time high
21.2°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Bennington (14 mi).
Mon, 1265° / 41°0.2
65 °
Williamstown, Monday, 12 October
Rain. High 65°, low 41°.
Pressure29.83 inHg
Wind6.1 mph NW
Humidity71%
Visibility6.2 mi
Dew point49°
Tue, 1364° / 46°0.07
64 °
Williamstown, Tuesday, 13 October
Light rain. High 64°, low 46°.
Pressure29.91 inHg
Wind13.6 mph S
Humidity76%
Visibility6.2 mi
Dew point54°
Wed, 1463° / 53°0.03
63 °
Williamstown, Wednesday, 14 October
Light rain. High 63°, low 53°.
Pressure29.83 inHg
Wind12.2 mph W
Humidity81%
Visibility6.2 mi
Dew point60°
Thu, 1550° / 38°0.01
50 °
Williamstown, Thursday, 15 October
Light rain. High 50°, low 38°.
Pressure30.21 inHg
Wind12.7 mph NW
Humidity64%
Visibility—
Dew point35°
Fri, 1647° / 37°0.83
47 °
Williamstown, Friday, 16 October
Rain. High 47°, low 37°.
Pressure29.71 inHg
Wind18.7 mph NW
Humidity97%
Visibility—
Dew point41°
Sat, 1742° / 30°0.28
42 °
Williamstown, Saturday, 17 October
Snow. High 42°, low 30°.
Pressure29.65 inHg
Wind11.4 mph W
Humidity85%
Visibility—
Dew point37°
Sun, 1836° / 20°0.11
36 °
Williamstown, Sunday, 18 October
Light snow. High 36°, low 20°.
Pressure30.27 inHg
Wind14.5 mph NW
Humidity80%
Visibility—
Dew point25°
Mon, 1945° / 20°0
45 °
Williamstown, Monday, 19 October
Partly cloudy. High 45°, low 20°.
Pressure30.56 inHg
Wind5 mph SW
Humidity59%
Visibility—
Dew point23°
Tue, 2050° / 29°0
50 °
Williamstown, Tuesday, 20 October
Clear. High 50°, low 29°.
Pressure30.33 inHg
Wind9.1 mph W
Humidity68%
Visibility—
Dew point35°
Wed, 2150° / 35°0
50 °
Williamstown, Wednesday, 21 October
Mostly clear. High 50°, low 35°.
Pressure30.47 inHg
Wind4.5 mph NW
Humidity68%
Visibility—
Dew point35°
Thu, 2254° / 35°0
54 °
Williamstown, Thursday, 22 October
Overcast. High 54°, low 35°.
Pressure30.47 inHg
Wind3.1 mph SE
Humidity65%
Visibility—
Dew point35°
Fri, 2356° / 35°0
56 °
Williamstown, Friday, 23 October
Clear. High 56°, low 35°.
Pressure30.39 inHg
Wind3.8 mph SE
Humidity60%
Visibility—
Dew point35°
Sat, 2454° / 38°0
54 °
Williamstown, Saturday, 24 October
Overcast. High 54°, low 38°.
Pressure30.18 inHg
Wind3.5 mph E
Humidity59%
Visibility—
Dew point35°
Sun, 2548° / 34°0
48 °
Williamstown, Sunday, 25 October
Clear. High 48°, low 34°.
Pressure30.00 inHg
Wind12.5 mph NW
Humidity61%
Visibility—
Dew point33°
Mon, 2650° / 31°0.07
50 °
Williamstown, Monday, 26 October
Light rain. High 50°, low 31°.
Pressure29.91 inHg
Wind8.8 mph S
Humidity53%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 39°0.15
53 °
Williamstown, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.15 in
Chance of precipitation33%
Record high73° (2023)
Record low25° (1976)
Wed, 2853° / 38°0.17
53 °
Williamstown, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.17 in
Chance of precipitation37%
Record high73° (1984)
Record low24° (1976)
Thu, 2951° / 37°0.14
51 °
Williamstown, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.14 in
Chance of precipitation38%
Record high67° (1989)
Record low26° (1965)
Fri, 3051° / 36°0.11
51 °
Williamstown, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.11 in
Chance of precipitation25%
Record high72° (2024)
Record low25° (2020)
Sat, 3152° / 37°0.1
52 °
Williamstown, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2024)
Record low21° (2011)
Sun, 0152° / 38°0.11
52 °
Williamstown, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation40%
Record high70° (1974)
Record low28° (2023)
Mon, 0252° / 38°0.11
52 °
Williamstown, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation38%
Record high73° (1982)
Record low21° (1993)
Tue, 0352° / 37°0.15
52 °
Williamstown, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.15 in
Chance of precipitation43%
Record high70° (1982)
Record low18° (1993)
Wed, 0451° / 37°0.07
51 °
Williamstown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (1994)
Record low24° (1988)
Thu, 0550° / 37°0.15
50 °
Williamstown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.15 in
Chance of precipitation43%
Record high71° (2022)
Record low25° (1965)
Fri, 0649° / 37°0.14
49 °
Williamstown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.14 in
Chance of precipitation45%
Record high71° (2024)
Record low25° (1991)
Sat, 0748° / 35°0.09
48 °
Williamstown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high68° (1975)
Record low16° (2002)
Sun, 0847° / 35°0.11
47 °
Williamstown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation35%
Record high68° (1975)
Record low13° (2002)
Mon, 0948° / 34°0.13
48 °
Williamstown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.13 in
Chance of precipitation32%
Record high67° (2020)
Record low19° (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 Williamstown, 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 Williamstown, 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.