As of 01:57 EDT

Weather in Back Bay, MA

53°

Back Bay, Monday, 12 October, 01:57

Light rain. Feels like 52°. High 70°, low 47°.

Pressure29.83 inHg

Wind12.7 mph NE

Humidity89%

Visibility1.5 mi

Dew point50°

See detailed hourly forecast

Monthly outlook for Back Bay, MA: average high 58.9°, average low 47.5°. That is 0.5° below the climate normal for October. Precipitation is expected on 7 days (about 4.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 12 October (70.2°), the coolest 18 October (34.8°).

58.9°/47.5°

Average high / low

−0.5°

Below normal

7 / 5

Wet days / normal

4.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 October – 21 October	60°	60.8°	-0.4°
22 October – 31 October	57.1°	57.3°	-0.1°
1 November – 10 November	at normal	54.6°	—

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).

Tue, 1360° / 49°

0.06

60 °

Back Bay, Tuesday, 13 October

Light rain. High 60°, low 49°.

Pressure30.03 inHg

Wind9.4 mph E

Humidity84%

Visibility6.2 mi

Dew point51°

Wed, 1462° / 55°

0.21

62 °

Back Bay, Wednesday, 14 October

Rain. High 62°, low 55°.

Pressure29.85 inHg

Wind3.2 mph N

Humidity87%

Visibility6.2 mi

Dew point53°

Thu, 1560° / 49°

60 °

Back Bay, Thursday, 15 October

Clear. High 60°, low 49°.

Pressure30.15 inHg

Wind8.4 mph N

Humidity54%

Visibility6.2 mi

Dew point41°

Fri, 1661° / 48°

0.65

61 °

Back Bay, Friday, 16 October

Rain. High 61°, low 48°.

Pressure29.71 inHg

Wind18.7 mph NW

Humidity95%

Visibility—

Dew point50°

Sat, 1747° / 37°

47 °

Back Bay, Saturday, 17 October

Clear. High 47°, low 37°.

Pressure29.97 inHg

Wind18.2 mph NW

Humidity54%

Visibility—

Dew point29°

Sun, 1851° / 35°

51 °

Back Bay, Sunday, 18 October

Clear. High 51°, low 35°.

Pressure30.62 inHg

Wind13.2 mph NW

Humidity30%

Visibility—

Dew point14°

Mon, 1963° / 44°

63 °

Back Bay, Monday, 19 October

Clear. High 63°, low 44°.

Pressure30.42 inHg

Wind12.1 mph SW

Humidity37%

Visibility—

Dew point28°

Tue, 2067° / 50°

67 °

Back Bay, Tuesday, 20 October

Partly cloudy. High 67°, low 50°.

Pressure30.27 inHg

Wind7.7 mph W

Humidity47%

Visibility—

Dew point40°

Wed, 2159° / 52°

59 °

Back Bay, Wednesday, 21 October

Mostly clear. High 59°, low 52°.

Pressure30.45 inHg

Wind8.1 mph E

Humidity66%

Visibility—

Dew point46°

Thu, 2257° / 50°

57 °

Back Bay, Thursday, 22 October

Overcast. High 57°, low 50°.

Pressure30.45 inHg

Wind8.8 mph SE

Humidity73%

Visibility—

Dew point46°

Fri, 2361° / 51°

0.68

61 °

Back Bay, Friday, 23 October

Rain. High 61°, low 51°.

Pressure30.00 inHg

Wind22.3 mph SE

Humidity76%

Visibility—

Dew point51°

Sat, 2461° / 53°

1.77

61 °

Back Bay, Saturday, 24 October

Heavy rain. High 61°, low 53°.

Pressure29.21 inHg

Wind20.7 mph SE

Humidity91%

Visibility—

Dew point56°

Sun, 2555° / 49°

0.05

55 °

Back Bay, Sunday, 25 October

Light rain. High 55°, low 49°.

Pressure29.32 inHg

Wind10.8 mph N

Humidity72%

Visibility—

Dew point43°

Mon, 2655° / 47°

55 °

Back Bay, Monday, 26 October

Overcast. High 55°, low 47°.

Pressure29.59 inHg

Wind11.2 mph NW

Humidity65%

Visibility—

Dew point39°

Tue, 2754° / 46°

54 °

Back Bay, Tuesday, 27 October

Partly cloudy. High 54°, low 46°.

Pressure29.68 inHg

Wind11.9 mph NW

Humidity48%

Visibility—

Dew point31°

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

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)

Mon, 0953° / 39°

0.11

53 °

Back Bay, Monday, 9 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.11 in

Chance of precipitation33%

Record high71° (2020)

Record low24° (2019)

Tue, 1053° / 40°

0.16

53 °

Back Bay, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.16 in

Chance of precipitation40%

Record high73° (2020)

Record low25° (2017)

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.