As of 05:29 EDT

Weather in Back Bay, MA

48°

Back Bay, Saturday, 10 October, 05:29

Overcast. Feels like 47°. High 63°, low 46°.

Pressure30.30 inHg

Wind3 mph NW

Humidity74%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Back Bay, MA: average high 59.5°, average low 48.6°. That is 0.5° below the climate normal for October. Precipitation is expected on 8 days (about 4.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 14 October (73.6°), the coolest 20 October (40.2°).

59.5°/48.6°

Average high / low

−0.5°

Below normal

8 / 5

Wet days / normal

4.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	62.2°	61.1°	+0.6°
20 October – 29 October	55.1°	58.3°	-1.8°
30 October – 8 November	at normal	55.1°	—

October records over 66 years

85.1°5 October 2007All-time high

19.9°31 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Boston (2 mi).

Sun, 1164° / 43°

0.02

64 °

Back Bay, Sunday, 11 October

Light rain. High 64°, low 43°.

Pressure30.36 inHg

Wind5.2 mph SE

Humidity52%

Visibility6.2 mi

Dew point44°

Mon, 1267° / 56°

0.47

67 °

Back Bay, Monday, 12 October

Rain. High 67°, low 56°.

Pressure29.77 inHg

Wind5.4 mph NE

Humidity80%

Visibility6.2 mi

Dew point56°

Tue, 1364° / 55°

0.07

64 °

Back Bay, Tuesday, 13 October

Light rain. High 64°, low 55°.

Pressure29.97 inHg

Wind6.3 mph E

Humidity83%

Visibility6.2 mi

Dew point54°

Wed, 1474° / 57°

0.06

74 °

Back Bay, Wednesday, 14 October

Light rain. High 74°, low 57°.

Pressure29.74 inHg

Wind12.4 mph SW

Humidity74%

Visibility—

Dew point63°

Thu, 1555° / 49°

55 °

Back Bay, Thursday, 15 October

Mostly clear. High 55°, low 49°.

Pressure30.03 inHg

Wind16.8 mph NW

Humidity56%

Visibility—

Dew point39°

Fri, 1661° / 48°

0.11

61 °

Back Bay, Friday, 16 October

Light rain. High 61°, low 48°.

Pressure30.21 inHg

Wind11.7 mph S

Humidity74%

Visibility—

Dew point44°

Sat, 1764° / 62°

1.72

64 °

Back Bay, Saturday, 17 October

Heavy rain. High 64°, low 62°.

Pressure29.94 inHg

Wind10.4 mph SW

Humidity99%

Visibility—

Dew point64°

Sun, 1861° / 53°

1.05

61 °

Back Bay, Sunday, 18 October

Heavy rain. High 61°, low 53°.

Pressure29.77 inHg

Wind9.3 mph NE

Humidity99%

Visibility—

Dew point57°

Mon, 1949° / 43°

0.19

49 °

Back Bay, Monday, 19 October

Light rain. High 49°, low 43°.

Pressure30.03 inHg

Wind10.4 mph NW

Humidity92%

Visibility—

Dew point43°

Tue, 2054° / 40°

54 °

Back Bay, Tuesday, 20 October

Clear. High 54°, low 40°.

Pressure30.33 inHg

Wind8.3 mph NW

Humidity49%

Visibility—

Dew point29°

Wed, 2156° / 44°

56 °

Back Bay, Wednesday, 21 October

Partly cloudy. High 56°, low 44°.

Pressure30.47 inHg

Wind5.1 mph NE

Humidity38%

Visibility—

Dew point26°

Thu, 2256° / 44°

56 °

Back Bay, Thursday, 22 October

Clear. High 56°, low 44°.

Pressure30.50 inHg

Wind8 mph NE

Humidity58%

Visibility—

Dew point38°

Fri, 2356° / 45°

56 °

Back Bay, Friday, 23 October

Clear. High 56°, low 45°.

Pressure30.42 inHg

Wind6.5 mph E

Humidity59%

Visibility—

Dew point39°

Sat, 2457° / 45°

57 °

Back Bay, Saturday, 24 October

Clear. High 57°, low 45°.

Pressure30.27 inHg

Wind9.6 mph NE

Humidity61%

Visibility—

Dew point40°

Sun, 2551° / 46°

0.56

51 °

Back Bay, Sunday, 25 October

Rain. High 51°, low 46°.

Pressure29.83 inHg

Wind12.3 mph NW

Humidity93%

Visibility—

Dew point45°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2657° / 45°

0.16

57 °

Back Bay, Monday, 26 October

Climate normal for this date — 60-year average.

Average high57°

Average low45°

Average precipitation0.16 in

Chance of precipitation30%

Record high78° (1963)

Record low29° (2018)

Tue, 2757° / 44°

0.13

57 °

Back Bay, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high57°

Average low44°

Average precipitation0.13 in

Chance of precipitation22%

Record high80° (1963)

Record low30° (1976)

Wed, 2857° / 43°

0.11

57 °

Back Bay, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°

Average low43°

Average precipitation0.11 in

Chance of precipitation33%

Record high78° (2023)

Record low30° (1976)

Thu, 2955° / 42°

0.14

55 °

Back Bay, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°

Average low42°

Average precipitation0.14 in

Chance of precipitation25%

Record high71° (2014)

Record low31° (1965)

Fri, 3055° / 42°

0.16

55 °

Back Bay, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°

Average low42°

Average precipitation0.16 in

Chance of precipitation32%

Record high71° (1989)

Record low22° (2020)

Sat, 3156° / 42°

0.09

56 °

Back Bay, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°

Average low42°

Average precipitation0.09 in

Chance of precipitation22%

Record high77° (2024)

Record low20° (2020)

Sun, 0157° / 43°

0.11

57 °

Back Bay, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°

Average low43°

Average precipitation0.11 in

Chance of precipitation32%

Record high77° (2024)

Record low33° (1964)

Mon, 0257° / 43°

0.1

57 °

Back Bay, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°

Average low43°

Average precipitation0.1 in

Chance of precipitation23%

Record high73° (1982)

Record low29° (1965)

Tue, 0356° / 42°

0.2

56 °

Back Bay, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°

Average low42°

Average precipitation0.2 in

Chance of precipitation33%

Record high74° (2017)

Record low28° (2002)

Wed, 0455° / 42°

0.05

55 °

Back Bay, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°

Average low42°

Average precipitation0.05 in

Chance of precipitation23%

Record high73° (1987)

Record low29° (2020)

Thu, 0555° / 42°

0.15

55 °

Back Bay, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high55°

Average low42°

Average precipitation0.15 in

Chance of precipitation38%

Record high75° (2022)

Record low30° (1965)

Fri, 0654° / 42°

0.13

54 °

Back Bay, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°

Average low42°

Average precipitation0.13 in

Chance of precipitation38%

Record high76° (2022)

Record low30° (2012)

Sat, 0754° / 40°

0.06

54 °

Back Bay, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°

Average low40°

Average precipitation0.06 in

Chance of precipitation28%

Record high74° (2022)

Record low29° (1962)

Sun, 0852° / 40°

0.11

52 °

Back Bay, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°

Average low40°

Average precipitation0.11 in

Chance of precipitation35%

Record high67° (2020)

Record low28° (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 Back Bay, 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 Back Bay, 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.