Monthly outlook for Sagamore Beach, MA: average high 81.4°, average low 65.9°. That is 3.1° above the climate normal for August. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (91.1°), the coolest 15 August (57°).
81.4°/65.9°
Average high / low
+3.1°
Above normal
4 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.5°
76.6°
+2.7°
19 August – 28 August
81.3°
74.8°
+3.6°
29 August – 7 September
at normal
73.3°
—
August records over 66 years
93°2 August 1975All-time high
51.3°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — North Falmouth (12 mi).
Mon, 1087° / 69°0
87 °
Sagamore Beach, Monday, 10 August
Clear. High 87°, low 69°.
Pressure29.97 inHg
Wind5.3 mph S
Humidity44%
Visibility6.2 mi
Dew point60°
Tue, 1187° / 70°0.02
87 °
Sagamore Beach, Tuesday, 11 August
Light rain. High 87°, low 70°.
Pressure29.77 inHg
Wind9.3 mph W
Humidity60%
Visibility6.2 mi
Dew point64°
Wed, 1282° / 66°0.02
82 °
Sagamore Beach, Wednesday, 12 August
Light rain. High 82°, low 66°.
Pressure29.77 inHg
Wind1.9 mph S
Humidity41%
Visibility6.2 mi
Dew point54°
Thu, 1379° / 66°0.19
79 °
Sagamore Beach, Thursday, 13 August
Light rain. High 79°, low 66°.
Pressure29.68 inHg
Wind13.4 mph W
Humidity87%
Visibility—
Dew point67°
Fri, 1476° / 59°0
76 °
Sagamore Beach, Friday, 14 August
Clear. High 76°, low 59°.
Pressure29.85 inHg
Wind14 mph W
Humidity42%
Visibility—
Dew point45°
Sat, 1578° / 57°0
78 °
Sagamore Beach, Saturday, 15 August
Clear. High 78°, low 57°.
Pressure29.91 inHg
Wind13.3 mph NW
Humidity40%
Visibility—
Dew point45°
Sun, 1675° / 59°0
75 °
Sagamore Beach, Sunday, 16 August
Partly cloudy. High 75°, low 59°.
Pressure30.09 inHg
Wind10.4 mph NE
Humidity42%
Visibility—
Dew point48°
Mon, 1779° / 65°0.12
79 °
Sagamore Beach, Monday, 17 August
Rain. High 79°, low 65°.
Pressure30.03 inHg
Wind15.2 mph SW
Humidity39%
Visibility—
Dew point49°
Tue, 1880° / 62°0.17
80 °
Sagamore Beach, Tuesday, 18 August
Light rain. High 80°, low 62°.
Pressure30.03 inHg
Wind7.8 mph SW
Humidity49%
Visibility—
Dew point54°
Wed, 1979° / 63°0
79 °
Sagamore Beach, Wednesday, 19 August
Overcast. High 79°, low 63°.
Pressure30.15 inHg
Wind6.2 mph NE
Humidity56%
Visibility—
Dew point59°
Thu, 2083° / 67°0
83 °
Sagamore Beach, Thursday, 20 August
Partly cloudy. High 83°, low 67°.
Pressure30.09 inHg
Wind10.4 mph SW
Humidity50%
Visibility—
Dew point59°
Fri, 2181° / 72°0
81 °
Sagamore Beach, Friday, 21 August
Light rain. High 81°, low 72°.
Pressure29.91 inHg
Wind17.6 mph SW
Humidity67%
Visibility—
Dew point67°
Sat, 2286° / 73°0.13
86 °
Sagamore Beach, Saturday, 22 August
Light rain. High 86°, low 73°.
Pressure29.88 inHg
Wind13.7 mph SW
Humidity69%
Visibility—
Dew point70°
Sun, 2380° / 69°0
80 °
Sagamore Beach, Sunday, 23 August
Overcast. High 80°, low 69°.
Pressure29.94 inHg
Wind9.3 mph NE
Humidity71%
Visibility—
Dew point67°
Mon, 2478° / 65°0.01
78 °
Sagamore Beach, Monday, 24 August
Light rain. High 78°, low 65°.
Pressure30.03 inHg
Wind11.8 mph NE
Humidity67%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2575° / 64°0.08
75 °
Sagamore Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high75°
Average low64°
Average precipitation0.08 in
Chance of precipitation23%
Record high85° (1993)
Record low56° (1971)
Wed, 2675° / 65°0.07
75 °
Sagamore Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high85° (1993)
Record low56° (1981)
Thu, 2775° / 65°0.06
75 °
Sagamore Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high86° (1993)
Record low56° (2019)
Fri, 2875° / 66°0.12
75 °
Sagamore Beach, Friday, 28 August
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.12 in
Chance of precipitation32%
Record high84° (1973)
Record low56° (1986)
Sat, 2974° / 65°0.17
74 °
Sagamore Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.17 in
Chance of precipitation30%
Record high86° (2016)
Record low51° (1982)
Sun, 3075° / 64°0.11
75 °
Sagamore Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (1973)
Record low51° (1965)
Mon, 3174° / 64°0.05
74 °
Sagamore Beach, Monday, 31 August
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.05 in
Chance of precipitation17%
Record high87° (2010)
Record low53° (1976)
Tue, 0173° / 64°0.06
73 °
Sagamore Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high73°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high86° (2010)
Record low55° (2017)
Wed, 0273° / 63°0.15
73 °
Sagamore Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.15 in
Chance of precipitation25%
Record high86° (1966)
Record low53° (2017)
Thu, 0373° / 63°0.17
73 °
Sagamore Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.17 in
Chance of precipitation33%
Record high84° (1973)
Record low53° (1967)
Fri, 0473° / 63°0.12
73 °
Sagamore Beach, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.12 in
Chance of precipitation27%
Record high86° (2023)
Record low55° (1997)
Sat, 0573° / 63°0.06
73 °
Sagamore Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.06 in
Chance of precipitation18%
Record high87° (2023)
Record low53° (1990)
Sun, 0672° / 63°0.15
72 °
Sagamore Beach, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low63°
Average precipitation0.15 in
Chance of precipitation32%
Record high88° (2023)
Record low52° (1965)
Mon, 0773° / 62°0.1
73 °
Sagamore Beach, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.1 in
Chance of precipitation32%
Record high86° (2023)
Record low52° (2000)
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 Sagamore Beach, 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 Sagamore Beach, 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.