As of 10:02 EDT

Weather in Plymouth, MA

83°Current weather

Plymouth, Sunday, 9 August, 10:02

Clear. Feels like 91°. High 91°, low 70°.

Pressure29.88 inHg
Wind2 mph SW
Humidity76%
Visibility6.2 mi
Dew point74°

Monthly outlook for Plymouth, MA: average high 80.5°, average low 64.7°. That is 1.1° above the climate normal for August. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (90.6°), the coolest 16 August (57.4°).

80.5°/64.7°
Average high / low
+1.1°
Above normal
5 / 5
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August80.7°79.4°+0.8°
19 August – 28 August80.1°77.5°+1.5°
29 August – 7 Septemberat normal75.6°

August records over 66 years

98.4°2 August 2006All-time high
48.4°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Halifax (14 mi).

Mon, 1089° / 69°0Clear
89 °Clear

Plymouth, Monday, 10 August

Clear. High 89°, low 69°.

Pressure29.97 inHg
Wind4.2 mph S
Humidity44%
Visibility6.2 mi
Dew point60°
Tue, 1189° / 69°0Overcast
89 °Overcast

Plymouth, Tuesday, 11 August

Overcast. High 89°, low 69°.

Pressure29.77 inHg
Wind3.2 mph W
Humidity64%
Visibility6.2 mi
Dew point65°
Wed, 1283° / 64°0Overcast
83 °Overcast

Plymouth, Wednesday, 12 August

Overcast. High 83°, low 64°.

Pressure29.83 inHg
Wind1.5 mph S
Humidity35%
Visibility6.2 mi
Dew point52°
Thu, 1384° / 67°0.15Light rain
84 °Light rain

Plymouth, Thursday, 13 August

Light rain. High 84°, low 67°.

Pressure29.62 inHg
Wind14.3 mph NW
Humidity53%
Visibility
Dew point63°
Fri, 1478° / 61°0Clear
78 °Clear

Plymouth, Friday, 14 August

Clear. High 78°, low 61°.

Pressure29.91 inHg
Wind15.3 mph W
Humidity39%
Visibility
Dew point44°
Sat, 1576° / 59°0Clear
76 °Clear

Plymouth, Saturday, 15 August

Clear. High 76°, low 59°.

Pressure30.03 inHg
Wind11.5 mph N
Humidity41%
Visibility
Dew point46°
Sun, 1676° / 57°0Overcast
76 °Overcast

Plymouth, Sunday, 16 August

Overcast. High 76°, low 57°.

Pressure30.15 inHg
Wind8.8 mph E
Humidity37%
Visibility
Dew point44°
Mon, 1771° / 64°0.78Heavy rain
71 °Heavy rain

Plymouth, Monday, 17 August

Heavy rain. High 71°, low 64°.

Pressure30.03 inHg
Wind11.5 mph SE
Humidity54%
Visibility
Dew point53°
Tue, 1871° / 64°0.55Rain
71 °Rain

Plymouth, Tuesday, 18 August

Rain. High 71°, low 64°.

Pressure29.91 inHg
Wind16 mph N
Humidity76%
Visibility
Dew point61°
Wed, 1978° / 63°0.01Light rain
78 °Light rain

Plymouth, Wednesday, 19 August

Light rain. High 78°, low 63°.

Pressure29.97 inHg
Wind11.7 mph S
Humidity63%
Visibility
Dew point61°
Thu, 2081° / 68°0.09Light rain
81 °Light rain

Plymouth, Thursday, 20 August

Light rain. High 81°, low 68°.

Pressure29.71 inHg
Wind9.3 mph SW
Humidity64%
Visibility
Dew point66°
Fri, 2179° / 66°0.02Light rain
79 °Light rain

Plymouth, Friday, 21 August

Light rain. High 79°, low 66°.

Pressure29.83 inHg
Wind6.7 mph E
Humidity65%
Visibility
Dew point63°
Sat, 2283° / 65°0Clear
83 °Clear

Plymouth, Saturday, 22 August

Clear. High 83°, low 65°.

Pressure29.97 inHg
Wind12.9 mph SW
Humidity48%
Visibility
Dew point57°
Sun, 2383° / 70°0.13Light rain
83 °Light rain

Plymouth, Sunday, 23 August

Light rain. High 83°, low 70°.

Pressure29.80 inHg
Wind21 mph SW
Humidity76%
Visibility
Dew point71°
Mon, 2478° / 60°0Clear
78 °Clear

Plymouth, Monday, 24 August

Clear. High 78°, low 60°.

Pressure30.12 inHg
Wind8.5 mph NW
Humidity36%
Visibility
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 63°0.1Climate normal
77 °Climate normal

Plymouth, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.1 in
Chance of precipitation32%
Record high93° (1969)
Record low53° (1987)
Wed, 2679° / 63°0.07Climate normal
79 °Climate normal

Plymouth, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (2021)
Record low53° (1981)
Thu, 2778° / 64°0.06Climate normal
78 °Climate normal

Plymouth, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high94° (1993)
Record low53° (2019)
Fri, 2878° / 64°0.12Climate normal
78 °Climate normal

Plymouth, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high93° (2018)
Record low52° (2025)
Sat, 2977° / 64°0.2Climate normal
77 °Climate normal

Plymouth, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.2 in
Chance of precipitation27%
Record high92° (2018)
Record low48° (1986)
Sun, 3077° / 63°0.13Climate normal
77 °Climate normal

Plymouth, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.13 in
Chance of precipitation22%
Record high91° (1973)
Record low49° (1986)
Mon, 3177° / 62°0.05Climate normal
77 °Climate normal

Plymouth, Monday, 31 August

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.05 in
Chance of precipitation20%
Record high90° (2012)
Record low49° (1965)
Tue, 0175° / 62°0.06Climate normal
75 °Climate normal

Plymouth, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2010)
Record low53° (2017)
Wed, 0275° / 61°0.17Climate normal
75 °Climate normal

Plymouth, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.17 in
Chance of precipitation25%
Record high92° (2010)
Record low49° (2017)
Thu, 0375° / 61°0.15Climate normal
75 °Climate normal

Plymouth, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (2018)
Record low50° (1967)
Fri, 0476° / 61°0.13Climate normal
76 °Climate normal

Plymouth, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.13 in
Chance of precipitation25%
Record high88° (1973)
Record low53° (1997)
Sat, 0575° / 61°0.07Climate normal
75 °Climate normal

Plymouth, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.07 in
Chance of precipitation18%
Record high90° (1971)
Record low51° (1994)
Sun, 0674° / 61°0.15Climate normal
74 °Climate normal

Plymouth, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (2018)
Record low51° (1994)
Mon, 0775° / 60°0.12Climate normal
75 °Climate normal

Plymouth, Monday, 7 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.12 in
Chance of precipitation30%
Record high93° (2023)
Record low50° (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 Plymouth, 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 Plymouth, 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.