Monthly outlook for Holliston, MA: average high 55.8°, average low 39.1°. That is 1.6° below the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 26 October (66.6°), the coolest 18 October (34.3°).
55.8°/39.1°
Average high / low
−1.6°
Below normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
56.9°
59.8°
-1.6°
27 October – 5 November
53.9°
56.6°
-1.5°
6 November – 15 November
at normal
51.9°
—
October records over 66 years
86.7°5 October 2007All-time high
17.4°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Woonsocket (14 mi).
Sun, 1850° / 34°0
50 °
Holliston, Sunday, 18 October
Clear. High 50°, low 34°.
Pressure30.56 inHg
Wind1.5 mph NE
Humidity47%
Visibility6.2 mi
Dew point27°
Mon, 1958° / 39°0
58 °
Holliston, Monday, 19 October
Overcast. High 58°, low 39°.
Pressure30.45 inHg
Wind5.1 mph NE
Humidity53%
Visibility6.2 mi
Dew point39°
Tue, 2060° / 43°0
60 °
Holliston, Tuesday, 20 October
Overcast. High 60°, low 43°.
Pressure30.27 inHg
Wind12.6 mph NE
Humidity56%
Visibility6.2 mi
Dew point43°
Wed, 2152° / 43°0
52 °
Holliston, Wednesday, 21 October
Overcast. High 52°, low 43°.
Pressure30.36 inHg
Wind13.2 mph NE
Humidity66%
Visibility—
Dew point38°
Thu, 2258° / 40°0
58 °
Holliston, Thursday, 22 October
Overcast. High 58°, low 40°.
Pressure30.09 inHg
Wind9.4 mph N
Humidity60%
Visibility—
Dew point37°
Fri, 2357° / 42°0
57 °
Holliston, Friday, 23 October
Clear. High 57°, low 42°.
Pressure30.21 inHg
Wind10.2 mph NE
Humidity53%
Visibility—
Dew point34°
Sat, 2453° / 39°0
53 °
Holliston, Saturday, 24 October
Clear. High 53°, low 39°.
Pressure30.45 inHg
Wind12 mph NE
Humidity56%
Visibility—
Dew point35°
Sun, 2558° / 35°0
58 °
Holliston, Sunday, 25 October
Overcast. High 58°, low 35°.
Pressure30.21 inHg
Wind9.7 mph N
Humidity40%
Visibility—
Dew point25°
Mon, 2667° / 40°0
67 °
Holliston, Monday, 26 October
Overcast. High 67°, low 40°.
Pressure30.06 inHg
Wind6.8 mph SW
Humidity46%
Visibility—
Dew point35°
Tue, 2762° / 41°0.02
62 °
Holliston, Tuesday, 27 October
Light rain. High 62°, low 41°.
Pressure29.80 inHg
Wind17.5 mph NW
Humidity65%
Visibility—
Dew point49°
Wed, 2850° / 35°0
50 °
Holliston, Wednesday, 28 October
Clear. High 50°, low 35°.
Pressure30.33 inHg
Wind14.3 mph NW
Humidity40%
Visibility—
Dew point20°
Thu, 2951° / 39°0.07
51 °
Holliston, Thursday, 29 October
Light rain. High 51°, low 39°.
Pressure30.15 inHg
Wind9 mph S
Humidity62%
Visibility—
Dew point31°
Fri, 3053° / 43°0.13
53 °
Holliston, Friday, 30 October
Light rain. High 53°, low 43°.
Pressure29.62 inHg
Wind15.3 mph N
Humidity82%
Visibility—
Dew point46°
Sat, 3150° / 39°0
50 °
Holliston, Saturday, 31 October
Overcast. High 50°, low 39°.
Pressure30.21 inHg
Wind7.6 mph NW
Humidity61%
Visibility—
Dew point34°
Sun, 0157° / 38°0
57 °
Holliston, Sunday, 1 November
Overcast. High 57°, low 38°.
Pressure30.33 inHg
Wind7.2 mph S
Humidity69%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0257° / 43°0.09
57 °
Holliston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (1982)
Record low27° (2023)
Tue, 0357° / 42°0.2
57 °
Holliston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.2 in
Chance of precipitation32%
Record high72° (1990)
Record low27° (2002)
Wed, 0456° / 41°0.04
56 °
Holliston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1987)
Record low28° (2020)
Thu, 0556° / 41°0.14
56 °
Holliston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.14 in
Chance of precipitation35%
Record high74° (1994)
Record low30° (1965)
Fri, 0654° / 42°0.12
54 °
Holliston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation32%
Record high74° (2024)
Record low28° (2012)
Sat, 0754° / 40°0.06
54 °
Holliston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (2022)
Record low27° (1962)
Sun, 0853° / 39°0.11
53 °
Holliston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2020)
Record low26° (1960)
Mon, 0953° / 39°0.09
53 °
Holliston, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (2020)
Record low22° (2019)
Tue, 1053° / 39°0.17
53 °
Holliston, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.17 in
Chance of precipitation35%
Record high71° (2020)
Record low24° (2017)
Wed, 1152° / 39°0.11
52 °
Holliston, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation35%
Record high69° (2020)
Record low20° (2017)
Thu, 1251° / 38°0.15
51 °
Holliston, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.15 in
Chance of precipitation35%
Record high71° (2022)
Record low25° (2017)
Fri, 1349° / 36°0.18
49 °
Holliston, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.18 in
Chance of precipitation43%
Record high69° (1964)
Record low18° (2019)
Sat, 1449° / 36°0.11
49 °
Holliston, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation22%
Record high67° (1993)
Record low20° (2019)
Sun, 1550° / 36°0.11
50 °
Holliston, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation35%
Record high73° (1993)
Record low20° (1967)
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 Holliston, 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 Holliston, 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.