As of 03:29 EDT

Weather in Chelsea, MA

42°

Chelsea, Sunday, 25 October, 03:29

Clear. Feels like 39°. High 67°, low 34°.

Pressure30.50 inHg

Wind4.6 mph NW

Humidity79%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Monthly outlook for Chelsea, MA: average high 58.9°, average low 44.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 26 October (68.5°), the coolest 25 October (34.3°).

58.9°/44.9°

Average high / low

+1.8°

Above normal

2 / 5

Wet days / normal

1.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
25 October – 3 November	61°	56.7°	+2.4°
4 November – 13 November	55.4°	52.6°	+1.5°
14 November – 23 November	at normal	48°	—

October records over 66 years

85.8°5 October 2007All-time high

25°31 October 2020All-time low

Mon, 2669° / 36°

69 °

Chelsea, Monday, 26 October

Clear. High 69°, low 36°.

Pressure30.15 inHg

Wind4.5 mph W

Humidity55%

Visibility6.2 mi

Dew point42°

Tue, 2754° / 40°

54 °

Chelsea, Tuesday, 27 October

Clear. High 54°, low 40°.

Pressure30.36 inHg

Wind5.9 mph N

Humidity51%

Visibility6.2 mi

Dew point29°

Wed, 2850° / 35°

50 °

Chelsea, Wednesday, 28 October

Clear. High 50°, low 35°.

Pressure30.53 inHg

Wind1.8 mph E

Humidity61%

Visibility6.2 mi

Dew point35°

Thu, 2964° / 42°

64 °

Chelsea, Thursday, 29 October

Clear. High 64°, low 42°.

Pressure30.27 inHg

Wind11.8 mph SW

Humidity71%

Visibility—

Dew point45°

Fri, 3067° / 54°

67 °

Chelsea, Friday, 30 October

Mostly clear. High 67°, low 54°.

Pressure30.12 inHg

Wind8.3 mph W

Humidity66%

Visibility—

Dew point51°

Sat, 3156° / 50°

56 °

Chelsea, Saturday, 31 October

Mostly clear. High 56°, low 50°.

Pressure30.47 inHg

Wind7 mph NE

Humidity54%

Visibility—

Dew point38°

Sun, 0165° / 49°

65 °

Chelsea, Sunday, 1 November

Overcast. High 65°, low 49°.

Pressure30.39 inHg

Wind9.2 mph S

Humidity64%

Visibility—

Dew point45°

Mon, 0260° / 58°

0.54

60 °

Chelsea, Monday, 2 November

Rain. High 60°, low 58°.

Pressure29.83 inHg

Wind15.8 mph S

Humidity92%

Visibility—

Dew point56°

Tue, 0360° / 48°

60 °

Chelsea, Tuesday, 3 November

Clear. High 60°, low 48°.

Pressure29.83 inHg

Wind16.7 mph NW

Humidity43%

Visibility—

Dew point36°

Wed, 0455° / 44°

55 °

Chelsea, Wednesday, 4 November

Clear. High 55°, low 44°.

Pressure30.27 inHg

Wind8.6 mph S

Humidity32%

Visibility—

Dew point21°

Thu, 0562° / 50°

0.51

62 °

Chelsea, Thursday, 5 November

Rain. High 62°, low 50°.

Pressure29.65 inHg

Wind18.1 mph SE

Humidity96%

Visibility—

Dew point58°

Fri, 0653° / 42°

0.01

53 °

Chelsea, Friday, 6 November

Light rain. High 53°, low 42°.

Pressure29.68 inHg

Wind13.3 mph NW

Humidity57%

Visibility—

Dew point37°

Sat, 0751° / 40°

0.01

51 °

Chelsea, Saturday, 7 November

Light rain. High 51°, low 40°.

Pressure29.80 inHg

Wind12.2 mph NW

Humidity33%

Visibility—

Dew point19°

Sun, 0862° / 51°

0.02

62 °

Chelsea, Sunday, 8 November

Light rain. High 62°, low 51°.

Pressure29.26 inHg

Wind18.8 mph W

Humidity52%

Visibility—

Dew point43°

Mon, 0949° / 46°

49 °

Chelsea, Monday, 9 November

Clear. High 49°, low 46°.

Pressure29.59 inHg

Wind13.8 mph NW

Humidity44%

Visibility—

Dew point26°

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

Tue, 1053° / 39°

0.16

53 °

Chelsea, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.16 in

Chance of precipitation38%

Record high73° (2020)

Record low25° (2017)

Wed, 1152° / 39°

0.13

52 °

Chelsea, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°

Average low39°

Average precipitation0.13 in

Chance of precipitation40%

Record high72° (2020)

Record low22° (2017)

Thu, 1250° / 38°

0.14

50 °

Chelsea, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.14 in

Chance of precipitation42%

Record high73° (2022)

Record low26° (2017)

Fri, 1349° / 36°

0.17

49 °

Chelsea, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.17 in

Chance of precipitation40%

Record high69° (1964)

Record low18° (2019)

Sat, 1449° / 36°

0.13

49 °

Chelsea, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.13 in

Chance of precipitation25%

Record high66° (1993)

Record low15° (1986)

Sun, 1550° / 36°

0.13

50 °

Chelsea, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.13 in

Chance of precipitation35%

Record high73° (1993)

Record low21° (2018)

Mon, 1649° / 36°

0.15

49 °

Chelsea, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.15 in

Chance of precipitation30%

Record high67° (2001)

Record low13° (1967)

Tue, 1749° / 34°

0.15

49 °

Chelsea, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.15 in

Chance of precipitation28%

Record high64° (2006)

Record low10° (1967)

Wed, 1849° / 35°

0.07

49 °

Chelsea, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.07 in

Chance of precipitation23%

Record high67° (1987)

Record low25° (2020)

Thu, 1948° / 34°

0.06

48 °

Chelsea, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.06 in

Chance of precipitation22%

Record high64° (1991)

Record low18° (1986)

Fri, 2048° / 34°

0.13

48 °

Chelsea, Friday, 20 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.13 in

Chance of precipitation32%

Record high69° (1985)

Record low13° (1986)

Sat, 2147° / 34°

0.11

47 °

Chelsea, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.11 in

Chance of precipitation33%

Record high62° (1975)

Record low19° (1987)

Sun, 2246° / 34°

0.19

46 °

Chelsea, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.19 in

Chance of precipitation40%

Record high63° (2007)

Record low10° (2018)

Mon, 2346° / 33°

0.15

46 °

Chelsea, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.15 in

Chance of precipitation28%

Record high66° (1979)

Record low12° (2018)

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 Chelsea, 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 Chelsea, 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.