As of 14:26 EDT

Weather in Yarmouth, ME

87°Current weather

Yarmouth, Sunday, 9 August, 14:26

Clear. Feels like 94°. High 88°, low 68°.

Pressure29.83 inHg
Wind3 mph S
Humidity64%
Visibility6.2 mi
Dew point72°

Monthly outlook for Yarmouth, ME: average high 78.4°, average low 62°. That is 2.2° above the climate normal for August. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (87.9°), the coolest 24 August (55.9°).

78.4°/62°
Average high / low
+2.2°
Above normal
7 / 5
Wet days / normal
2.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August79.7°75°+2.6°
19 August – 28 August76.2°73.4°+1.5°
29 August – 7 Septemberat normal71.6°

August records over 66 years

93.6°12 August 2025All-time high
48°30 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Portland (10 mi).

Mon, 1087° / 66°0.15Rain
87 °Rain

Yarmouth, Monday, 10 August

Rain. High 87°, low 66°.

Pressure29.94 inHg
Wind10.3 mph S
Humidity43%
Visibility6.2 mi
Dew point55°
Tue, 1182° / 66°0.03Light rain
82 °Light rain

Yarmouth, Tuesday, 11 August

Light rain. High 82°, low 66°.

Pressure29.74 inHg
Wind2 mph SE
Humidity53%
Visibility6.2 mi
Dew point62°
Wed, 1284° / 63°0.07Light rain
84 °Light rain

Yarmouth, Wednesday, 12 August

Light rain. High 84°, low 63°.

Pressure29.77 inHg
Wind4.6 mph NW
Humidity31%
Visibility6.2 mi
Dew point48°
Thu, 1378° / 62°0.22Light rain
78 °Light rain

Yarmouth, Thursday, 13 August

Light rain. High 78°, low 62°.

Pressure29.59 inHg
Wind5.8 mph S
Humidity65%
Visibility6.2 mi
Dew point62°
Fri, 1475° / 58°0Overcast
75 °Overcast

Yarmouth, Friday, 14 August

Overcast. High 75°, low 58°.

Pressure29.80 inHg
Wind16.3 mph NW
Humidity47%
Visibility
Dew point47°
Sat, 1577° / 60°0Clear
77 °Clear

Yarmouth, Saturday, 15 August

Clear. High 77°, low 60°.

Pressure29.97 inHg
Wind15.3 mph NW
Humidity37%
Visibility
Dew point43°
Sun, 1680° / 57°0Clear
80 °Clear

Yarmouth, Sunday, 16 August

Clear. High 80°, low 57°.

Pressure30.12 inHg
Wind10.4 mph S
Humidity33%
Visibility
Dew point43°
Mon, 1772° / 61°0.05Light rain
72 °Light rain

Yarmouth, Monday, 17 August

Light rain. High 72°, low 61°.

Pressure30.00 inHg
Wind10.2 mph S
Humidity46%
Visibility
Dew point49°
Tue, 1875° / 60°0.06Light rain
75 °Light rain

Yarmouth, Tuesday, 18 August

Light rain. High 75°, low 60°.

Pressure29.91 inHg
Wind10.7 mph N
Humidity72%
Visibility
Dew point57°
Wed, 1970° / 59°0Overcast
70 °Overcast

Yarmouth, Wednesday, 19 August

Overcast. High 70°, low 59°.

Pressure29.97 inHg
Wind11.7 mph SE
Humidity85%
Visibility
Dew point60°
Thu, 2074° / 64°0.17Light rain
74 °Light rain

Yarmouth, Thursday, 20 August

Light rain. High 74°, low 64°.

Pressure29.71 inHg
Wind9.3 mph S
Humidity98%
Visibility
Dew point67°
Fri, 2176° / 63°0Overcast
76 °Overcast

Yarmouth, Friday, 21 August

Overcast. High 76°, low 63°.

Pressure29.83 inHg
Wind8.4 mph SE
Humidity81%
Visibility
Dew point61°
Sat, 2281° / 64°0Mostly clear
81 °Mostly clear

Yarmouth, Saturday, 22 August

Mostly clear. High 81°, low 64°.

Pressure29.94 inHg
Wind11.7 mph S
Humidity57%
Visibility
Dew point59°
Sun, 2381° / 66°1.38Heavy rain
81 °Heavy rain

Yarmouth, Sunday, 23 August

Heavy rain. High 81°, low 66°.

Pressure29.74 inHg
Wind13.6 mph W
Humidity99%
Visibility
Dew point69°
Mon, 2474° / 56°0Clear
74 °Clear

Yarmouth, Monday, 24 August

Clear. High 74°, low 56°.

Pressure30.09 inHg
Wind6.1 mph NW
Humidity44%
Visibility
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2573° / 62°0.11Climate normal
73 °Climate normal

Yarmouth, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high73°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high86° (2020)
Record low53° (1989)
Wed, 2674° / 62°0.04Climate normal
74 °Climate normal

Yarmouth, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.04 in
Chance of precipitation17%
Record high86° (2021)
Record low54° (2019)
Thu, 2774° / 62°0.05Climate normal
74 °Climate normal

Yarmouth, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high84° (1983)
Record low52° (2019)
Fri, 2873° / 62°0.14Climate normal
73 °Climate normal

Yarmouth, Friday, 28 August

Climate normal for this date — 60-year average.

Average high73°
Average low62°
Average precipitation0.14 in
Chance of precipitation28%
Record high90° (2018)
Record low54° (2025)
Sat, 2972° / 62°0.15Climate normal
72 °Climate normal

Yarmouth, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high72°
Average low62°
Average precipitation0.15 in
Chance of precipitation28%
Record high86° (2010)
Record low49° (1982)
Sun, 3073° / 61°0.14Climate normal
73 °Climate normal

Yarmouth, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high73°
Average low61°
Average precipitation0.14 in
Chance of precipitation27%
Record high86° (2010)
Record low48° (1965)
Mon, 3173° / 61°0.09Climate normal
73 °Climate normal

Yarmouth, Monday, 31 August

Climate normal for this date — 60-year average.

Average high73°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high89° (2010)
Record low48° (1965)
Tue, 0172° / 60°0.03Climate normal
72 °Climate normal

Yarmouth, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high72°
Average low60°
Average precipitation0.03 in
Chance of precipitation18%
Record high85° (2010)
Record low50° (2017)
Wed, 0271° / 60°0.11Climate normal
71 °Climate normal

Yarmouth, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (2010)
Record low49° (2017)
Thu, 0371° / 60°0.11Climate normal
71 °Climate normal

Yarmouth, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (2018)
Record low52° (2024)
Fri, 0471° / 60°0.14Climate normal
71 °Climate normal

Yarmouth, Friday, 4 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.14 in
Chance of precipitation33%
Record high83° (2023)
Record low53° (1965)
Sat, 0571° / 60°0.08Climate normal
71 °Climate normal

Yarmouth, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.08 in
Chance of precipitation22%
Record high89° (2023)
Record low50° (1963)
Sun, 0670° / 60°0.12Climate normal
70 °Climate normal

Yarmouth, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high70°
Average low60°
Average precipitation0.12 in
Chance of precipitation32%
Record high89° (2018)
Record low50° (2000)
Mon, 0771° / 59°0.17Climate normal
71 °Climate normal

Yarmouth, Monday, 7 September

Climate normal for this date — 60-year average.

Average high71°
Average low59°
Average precipitation0.17 in
Chance of precipitation28%
Record high86° (2023)
Record low52° (1988)

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 Yarmouth, ME 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 Yarmouth, ME 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.