As of 15:11 EDT

Weather in Back Bay, MA

67°

Back Bay, Friday, 9 October, 15:11

Clear. Feels like 66°. High 67°, low 46°.

Pressure30.03 inHg

Wind21.9 mph W

Humidity41%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Back Bay, MA: average high 60.7°, average low 47.1°. That is 0.1° below the climate normal for October. Precipitation is expected on 7 days (about 3.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 9 October (67.4°), the coolest 19 October (37.6°).

60.7°/47.1°

Average high / low

−0.1°

Below normal

7 / 5

Wet days / normal

3.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	62.1°	61.6°	+0.3°
19 October – 28 October	58.3°	58.6°	-0.2°
29 October – 7 November	at normal	55.5°	—

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).

Sat, 1065° / 48°

65 °

Back Bay, Saturday, 10 October

Overcast. High 65°, low 48°.

Pressure30.45 inHg

Wind6.2 mph NW

Humidity46%

Visibility6.2 mi

Dew point38°

Sun, 1162° / 47°

0.05

62 °

Back Bay, Sunday, 11 October

Light rain. High 62°, low 47°.

Pressure30.39 inHg

Wind5.5 mph SE

Humidity67%

Visibility6.2 mi

Dew point50°

Mon, 1264° / 57°

0.39

64 °

Back Bay, Monday, 12 October

Rain. High 64°, low 57°.

Pressure29.68 inHg

Wind11.3 mph N

Humidity89%

Visibility6.2 mi

Dew point56°

Tue, 1363° / 53°

0.46

63 °

Back Bay, Tuesday, 13 October

Rain. High 63°, low 53°.

Pressure29.77 inHg

Wind3.2 mph E

Humidity85%

Visibility4.1 mi

Dew point58°

Wed, 1460° / 50°

60 °

Back Bay, Wednesday, 14 October

Light rain. High 60°, low 50°.

Pressure29.88 inHg

Wind8.9 mph NW

Humidity77%

Visibility—

Dew point49°

Thu, 1559° / 45°

59 °

Back Bay, Thursday, 15 October

Clear. High 59°, low 45°.

Pressure30.24 inHg

Wind8.7 mph NW

Humidity40%

Visibility—

Dew point28°

Fri, 1664° / 47°

0.19

64 °

Back Bay, Friday, 16 October

Light rain. High 64°, low 47°.

Pressure30.12 inHg

Wind18 mph S

Humidity63%

Visibility—

Dew point43°

Sat, 1767° / 46°

0.64

67 °

Back Bay, Saturday, 17 October

Rain. High 67°, low 46°.

Pressure29.74 inHg

Wind16.6 mph SW

Humidity94%

Visibility—

Dew point54°

Sun, 1850° / 41°

50 °

Back Bay, Sunday, 18 October

Mostly clear. High 50°, low 41°.

Pressure30.12 inHg

Wind13.2 mph NW

Humidity45%

Visibility—

Dew point26°

Mon, 1950° / 38°

50 °

Back Bay, Monday, 19 October

Overcast. High 50°, low 38°.

Pressure30.50 inHg

Wind6.4 mph N

Humidity38%

Visibility—

Dew point20°

Tue, 2057° / 41°

57 °

Back Bay, Tuesday, 20 October

Overcast. High 57°, low 41°.

Pressure30.56 inHg

Wind5.5 mph S

Humidity50%

Visibility—

Dew point32°

Wed, 2158° / 43°

58 °

Back Bay, Wednesday, 21 October

Clear. High 58°, low 43°.

Pressure30.59 inHg

Wind7.5 mph SE

Humidity48%

Visibility—

Dew point34°

Thu, 2260° / 45°

60 °

Back Bay, Thursday, 22 October

Overcast. High 60°, low 45°.

Pressure30.45 inHg

Wind6.2 mph S

Humidity57%

Visibility—

Dew point38°

Fri, 2360° / 48°

0.06

60 °

Back Bay, Friday, 23 October

Light rain. High 60°, low 48°.

Pressure30.27 inHg

Wind7.1 mph SE

Humidity73%

Visibility—

Dew point49°

Sat, 2465° / 58°

1.4

65 °

Back Bay, Saturday, 24 October

Heavy rain. High 65°, low 58°.

Pressure30.00 inHg

Wind32.8 mph E

Humidity78%

Visibility—

Dew point57°

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

Sun, 2558° / 45°

0.15

58 °

Back Bay, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high58°

Average low45°

Average precipitation0.15 in

Chance of precipitation28%

Record high78° (1963)

Record low33° (2003)

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)

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.