Monthly outlook for Eastham, MA: average high 58.9°, average low 51.6°. That is 0.2° above the climate normal for October. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 October (67.3°), the coolest 19 October (45.8°).
58.9°/51.6°
Average high / low
+0.2°
Above normal
7 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
60.8°
59.3°
+0.9°
19 October – 28 October
55.7°
56.8°
-0.6°
29 October – 7 November
at normal
54.3°
—
October records over 66 years
77.2°2 October 2019All-time high
34.9°23 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Chatham (12 mi).
Sat, 1062° / 49°0
62 °
Eastham, Saturday, 10 October
Overcast. High 62°, low 49°.
Pressure30.47 inHg
Wind14.9 mph NW
Humidity64%
Visibility6.2 mi
Dew point42°
Sun, 1160° / 48°0.13
60 °
Eastham, Sunday, 11 October
Light rain. High 60°, low 48°.
Pressure30.42 inHg
Wind13.9 mph S
Humidity64%
Visibility6.2 mi
Dew point46°
Mon, 1262° / 58°0.22
62 °
Eastham, Monday, 12 October
Rain. High 62°, low 58°.
Pressure29.59 inHg
Wind19.1 mph NE
Humidity94%
Visibility6.2 mi
Dew point58°
Tue, 1364° / 60°0.56
64 °
Eastham, Tuesday, 13 October
Rain. High 64°, low 60°.
Pressure29.77 inHg
Wind8.7 mph S
Humidity88%
Visibility6.2 mi
Dew point58°
Wed, 1459° / 55°0.33
59 °
Eastham, Wednesday, 14 October
Rain. High 59°, low 55°.
Pressure29.85 inHg
Wind23.2 mph N
Humidity87%
Visibility—
Dew point51°
Thu, 1554° / 51°0
54 °
Eastham, Thursday, 15 October
Clear. High 54°, low 51°.
Pressure30.21 inHg
Wind21.2 mph N
Humidity59%
Visibility—
Dew point38°
Fri, 1664° / 53°0.12
64 °
Eastham, Friday, 16 October
Light rain. High 64°, low 53°.
Pressure30.15 inHg
Wind33 mph S
Humidity74%
Visibility—
Dew point51°
Sat, 1765° / 51°0.26
65 °
Eastham, Saturday, 17 October
Light rain. High 65°, low 51°.
Pressure29.80 inHg
Wind33.3 mph S
Humidity76%
Visibility—
Dew point50°
Sun, 1851° / 47°0.03
51 °
Eastham, Sunday, 18 October
Light rain. High 51°, low 47°.
Pressure30.09 inHg
Wind18.9 mph NW
Humidity65%
Visibility—
Dew point36°
Mon, 1948° / 46°0
48 °
Eastham, Monday, 19 October
Overcast. High 48°, low 46°.
Pressure30.47 inHg
Wind17.4 mph N
Humidity48%
Visibility—
Dew point28°
Tue, 2051° / 46°0
51 °
Eastham, Tuesday, 20 October
Overcast. High 51°, low 46°.
Pressure30.56 inHg
Wind7.5 mph SE
Humidity49%
Visibility—
Dew point32°
Wed, 2154° / 49°0
54 °
Eastham, Wednesday, 21 October
Clear. High 54°, low 49°.
Pressure30.59 inHg
Wind8.2 mph E
Humidity55%
Visibility—
Dew point37°
Thu, 2257° / 51°0
57 °
Eastham, Thursday, 22 October
Overcast. High 57°, low 51°.
Pressure30.45 inHg
Wind8.6 mph S
Humidity62%
Visibility—
Dew point42°
Fri, 2362° / 56°0
62 °
Eastham, Friday, 23 October
Overcast. High 62°, low 56°.
Pressure30.30 inHg
Wind14.8 mph SE
Humidity78%
Visibility—
Dew point53°
Sat, 2463° / 60°0.87
63 °
Eastham, Saturday, 24 October
Rain. High 63°, low 60°.
Pressure30.00 inHg
Wind51.7 mph SE
Humidity85%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 51°0.17
57 °
Eastham, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low51°
Average precipitation0.17 in
Chance of precipitation28%
Record high69° (2021)
Record low41° (1978)
Mon, 2656° / 50°0.16
56 °
Eastham, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low50°
Average precipitation0.16 in
Chance of precipitation35%
Record high72° (2023)
Record low38° (2018)
Tue, 2755° / 49°0.14
55 °
Eastham, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low49°
Average precipitation0.14 in
Chance of precipitation27%
Record high71° (2023)
Record low37° (1962)
Wed, 2856° / 49°0.15
56 °
Eastham, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low49°
Average precipitation0.15 in
Chance of precipitation43%
Record high74° (2023)
Record low37° (1976)
Thu, 2955° / 48°0.12
55 °
Eastham, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low48°
Average precipitation0.12 in
Chance of precipitation28%
Record high65° (2023)
Record low37° (1965)
Fri, 3054° / 47°0.16
54 °
Eastham, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.16 in
Chance of precipitation32%
Record high66° (2017)
Record low37° (1966)
Sat, 3154° / 48°0.09
54 °
Eastham, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low48°
Average precipitation0.09 in
Chance of precipitation20%
Record high69° (2024)
Record low38° (1988)
Sun, 0155° / 49°0.13
55 °
Eastham, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low49°
Average precipitation0.13 in
Chance of precipitation35%
Record high69° (2024)
Record low39° (1976)
Mon, 0255° / 48°0.14
55 °
Eastham, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low48°
Average precipitation0.14 in
Chance of precipitation30%
Record high64° (1971)
Record low33° (1965)
Tue, 0355° / 47°0.22
55 °
Eastham, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low47°
Average precipitation0.22 in
Chance of precipitation35%
Record high65° (2017)
Record low37° (2002)
Wed, 0454° / 47°0.05
54 °
Eastham, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.05 in
Chance of precipitation22%
Record high66° (2022)
Record low33° (2002)
Thu, 0554° / 47°0.17
54 °
Eastham, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.17 in
Chance of precipitation40%
Record high69° (2022)
Record low35° (1965)
Fri, 0654° / 47°0.15
54 °
Eastham, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.15 in
Chance of precipitation40%
Record high70° (2022)
Record low36° (1987)
Sat, 0754° / 46°0.08
54 °
Eastham, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low46°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (2022)
Record low34° (2002)
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 Eastham, 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 Eastham, 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.