Monthly outlook for Sail Harbor, CT: average high 58.5°, average low 41.8°. That is 1° below the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 14 October (73.5°), the coolest 19 October (29.9°).
58.5°/41.8°
Average high / low
−1°
Below normal
4 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
59.2°
61.1°
-1.1°
21 October – 30 October
57.5°
57.8°
-0.2°
31 October – 9 November
at normal
54.7°
—
October records over 66 years
86.4°6 October 2007All-time high
27°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Danbury (9 mi).
Mon, 1270° / 45°0.08
70 °
Sail Harbor, Monday, 12 October
Light rain. High 70°, low 45°.
Pressure29.80 inHg
Wind8.1 mph N
Humidity65%
Visibility6.2 mi
Dew point53°
Tue, 1372° / 53°0
72 °
Sail Harbor, Tuesday, 13 October
Mostly clear. High 72°, low 53°.
Pressure29.91 inHg
Wind9 mph S
Humidity65%
Visibility6.2 mi
Dew point58°
Wed, 1474° / 58°0
74 °
Sail Harbor, Wednesday, 14 October
Light rain. High 74°, low 58°.
Pressure29.83 inHg
Wind9.9 mph W
Humidity68%
Visibility6.2 mi
Dew point64°
Thu, 1559° / 47°0
59 °
Sail Harbor, Thursday, 15 October
Overcast. High 59°, low 47°.
Pressure30.21 inHg
Wind12 mph N
Humidity54%
Visibility—
Dew point40°
Fri, 1658° / 44°0.44
58 °
Sail Harbor, Friday, 16 October
Rain. High 58°, low 44°.
Pressure29.85 inHg
Wind15.6 mph W
Humidity88%
Visibility—
Dew point48°
Sat, 1761° / 44°0.59
61 °
Sail Harbor, Saturday, 17 October
Rain. High 61°, low 44°.
Pressure29.80 inHg
Wind14.1 mph SW
Humidity91%
Visibility—
Dew point44°
Sun, 1842° / 33°0.01
42 °
Sail Harbor, Sunday, 18 October
Light rain. High 42°, low 33°.
Pressure30.00 inHg
Wind14.5 mph NW
Humidity57%
Visibility—
Dew point25°
Mon, 1946° / 30°0
46 °
Sail Harbor, Monday, 19 October
Clear. High 46°, low 30°.
Pressure30.36 inHg
Wind12.4 mph NW
Humidity39%
Visibility—
Dew point16°
Tue, 2055° / 32°0
55 °
Sail Harbor, Tuesday, 20 October
Overcast. High 55°, low 32°.
Pressure30.39 inHg
Wind7.8 mph W
Humidity41%
Visibility—
Dew point25°
Wed, 2161° / 38°0
61 °
Sail Harbor, Wednesday, 21 October
Clear. High 61°, low 38°.
Pressure30.47 inHg
Wind4 mph SE
Humidity51%
Visibility—
Dew point36°
Thu, 2261° / 41°0
61 °
Sail Harbor, Thursday, 22 October
Partly cloudy. High 61°, low 41°.
Pressure30.42 inHg
Wind5.3 mph S
Humidity62%
Visibility—
Dew point41°
Fri, 2361° / 42°0
61 °
Sail Harbor, Friday, 23 October
Clear. High 61°, low 42°.
Pressure30.24 inHg
Wind7.9 mph N
Humidity62%
Visibility—
Dew point42°
Sat, 2458° / 39°0
58 °
Sail Harbor, Saturday, 24 October
Clear. High 58°, low 39°.
Pressure30.30 inHg
Wind6.5 mph S
Humidity60%
Visibility—
Dew point38°
Sun, 2558° / 42°0.01
58 °
Sail Harbor, Sunday, 25 October
Light rain. High 58°, low 42°.
Pressure30.00 inHg
Wind14.8 mph W
Humidity68%
Visibility—
Dew point47°
Mon, 2645° / 35°0
45 °
Sail Harbor, Monday, 26 October
Overcast. High 45°, low 35°.
Pressure30.00 inHg
Wind6.3 mph NW
Humidity60%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2757° / 44°0.15
57 °
Sail Harbor, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.15 in
Chance of precipitation25%
Record high80° (1963)
Record low28° (1976)
Wed, 2857° / 43°0.18
57 °
Sail Harbor, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.18 in
Chance of precipitation32%
Record high77° (2023)
Record low28° (1976)
Thu, 2955° / 42°0.17
55 °
Sail Harbor, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.17 in
Chance of precipitation27%
Record high71° (1971)
Record low29° (1965)
Fri, 3055° / 41°0.14
55 °
Sail Harbor, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation23%
Record high74° (2024)
Record low31° (1962)
Sat, 3156° / 42°0.07
56 °
Sail Harbor, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation22%
Record high79° (2024)
Record low27° (2011)
Sun, 0157° / 43°0.11
57 °
Sail Harbor, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high76° (2024)
Record low32° (1983)
Mon, 0257° / 43°0.08
57 °
Sail Harbor, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.08 in
Chance of precipitation30%
Record high74° (1982)
Record low28° (1965)
Tue, 0357° / 42°0.11
57 °
Sail Harbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2003)
Record low32° (1980)
Wed, 0455° / 42°0.05
55 °
Sail Harbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.05 in
Chance of precipitation23%
Record high72° (1987)
Record low30° (2013)
Thu, 0555° / 41°0.13
55 °
Sail Harbor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation32%
Record high72° (2022)
Record low31° (1965)
Fri, 0653° / 41°0.08
53 °
Sail Harbor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.08 in
Chance of precipitation33%
Record high76° (2024)
Record low28° (2012)
Sat, 0753° / 40°0.08
53 °
Sail Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high71° (2022)
Record low28° (1962)
Sun, 0852° / 39°0.15
52 °
Sail Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.15 in
Chance of precipitation30%
Record high71° (2020)
Record low27° (2019)
Mon, 0952° / 39°0.09
52 °
Sail Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation22%
Record high72° (1975)
Record low24° (2019)
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 Sail Harbor, CT 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 Sail Harbor, CT 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.