Monthly outlook for Old Saybrook, CT: average high 51.5°, average low 40.9°. That is 1.2° above the climate normal for November. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 23 November (58.7°), the coolest 17 November (31.2°).
51.5°/40.9°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
52.4°
49.9°
+1.4°
23 November – 2 December
49.9°
47.8°
+1.2°
3 December – 12 December
at normal
43.7°
—
November records over 66 years
74.3°1 November 2024All-time high
14.5°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Old Lyme (4 mi).
Sat, 1448° / 33°0
48 °
Old Saybrook, Saturday, 14 November
Overcast. High 48°, low 33°.
Pressure29.71 inHg
Wind9.7 mph NW
Humidity60%
Visibility6.2 mi
Dew point26°
Sun, 1547° / 35°0
47 °
Old Saybrook, Sunday, 15 November
Overcast. High 47°, low 35°.
Pressure30.06 inHg
Wind11.3 mph NW
Humidity55%
Visibility6.2 mi
Dew point28°
Mon, 1648° / 32°0
48 °
Old Saybrook, Monday, 16 November
Clear. High 48°, low 32°.
Pressure30.39 inHg
Wind8.1 mph NW
Humidity52%
Visibility6.2 mi
Dew point30°
Tue, 1753° / 31°0
53 °
Old Saybrook, Tuesday, 17 November
Clear. High 53°, low 31°.
Pressure30.42 inHg
Wind4.5 mph NW
Humidity59%
Visibility6.2 mi
Dew point36°
Wed, 1858° / 36°0
58 °
Old Saybrook, Wednesday, 18 November
Clear. High 58°, low 36°.
Pressure30.42 inHg
Wind7 mph NW
Humidity55%
Visibility—
Dew point34°
Thu, 1956° / 42°0
56 °
Old Saybrook, Thursday, 19 November
Clear. High 56°, low 42°.
Pressure30.39 inHg
Wind10.6 mph W
Humidity58%
Visibility—
Dew point36°
Fri, 2058° / 50°0
58 °
Old Saybrook, Friday, 20 November
Overcast. High 58°, low 50°.
Pressure30.24 inHg
Wind12.8 mph W
Humidity61%
Visibility—
Dew point40°
Sat, 2153° / 46°0.01
53 °
Old Saybrook, Saturday, 21 November
Light rain. High 53°, low 46°.
Pressure30.42 inHg
Wind13.8 mph E
Humidity79%
Visibility—
Dew point44°
Sun, 2259° / 54°0.01
59 °
Old Saybrook, Sunday, 22 November
Light rain. High 59°, low 54°.
Pressure30.30 inHg
Wind11.4 mph SE
Humidity84%
Visibility—
Dew point52°
Mon, 2359° / 55°0.09
59 °
Old Saybrook, Monday, 23 November
Light rain. High 59°, low 55°.
Pressure30.18 inHg
Wind7.5 mph E
Humidity90%
Visibility—
Dew point56°
Tue, 2457° / 55°0.19
57 °
Old Saybrook, Tuesday, 24 November
Light rain. High 57°, low 55°.
Pressure29.85 inHg
Wind11.5 mph E
Humidity99%
Visibility—
Dew point56°
Wed, 2556° / 42°0.07
56 °
Old Saybrook, Wednesday, 25 November
Light rain. High 56°, low 42°.
Pressure29.62 inHg
Wind22.3 mph W
Humidity69%
Visibility—
Dew point38°
Thu, 2639° / 34°0
39 °
Old Saybrook, Thursday, 26 November
Overcast. High 39°, low 34°.
Pressure30.12 inHg
Wind16 mph W
Humidity53%
Visibility—
Dew point20°
Fri, 2745° / 35°0
45 °
Old Saybrook, Friday, 27 November
Clear. High 45°, low 35°.
Pressure29.97 inHg
Wind20.6 mph W
Humidity48%
Visibility—
Dew point23°
Sat, 2843° / 36°0
43 °
Old Saybrook, Saturday, 28 November
Clear. High 43°, low 36°.
Pressure30.06 inHg
Wind17.6 mph W
Humidity56%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2948° / 38°0.08
48 °
Old Saybrook, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high62° (2011)
Record low26° (1989)
Mon, 3046° / 37°0.14
46 °
Old Saybrook, Monday, 30 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.14 in
Chance of precipitation35%
Record high63° (2020)
Record low24° (2013)
Tue, 0146° / 36°0.13
46 °
Old Saybrook, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high63° (2001)
Record low21° (1967)
Wed, 0246° / 36°0.14
46 °
Old Saybrook, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.14 in
Chance of precipitation28%
Record high60° (2006)
Record low17° (1989)
Thu, 0346° / 35°0.16
46 °
Old Saybrook, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.16 in
Chance of precipitation28%
Record high60° (2009)
Record low15° (1976)
Fri, 0445° / 34°0.11
45 °
Old Saybrook, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high63° (1998)
Record low14° (1989)
Sat, 0544° / 34°0.17
44 °
Old Saybrook, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.17 in
Chance of precipitation32%
Record high62° (2001)
Record low16° (2025)
Sun, 0645° / 35°0.16
45 °
Old Saybrook, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.16 in
Chance of precipitation47%
Record high62° (2001)
Record low22° (2007)
Mon, 0744° / 34°0.15
44 °
Old Saybrook, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.15 in
Chance of precipitation32%
Record high66° (1998)
Record low15° (1964)
Tue, 0842° / 32°0.1
42 °
Old Saybrook, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.1 in
Chance of precipitation30%
Record high56° (1974)
Record low17° (1964)
Wed, 0943° / 32°0.19
43 °
Old Saybrook, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.19 in
Chance of precipitation38%
Record high58° (1991)
Record low13° (1968)
Thu, 1044° / 34°0.13
44 °
Old Saybrook, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.13 in
Chance of precipitation37%
Record high58° (2023)
Record low9° (1968)
Fri, 1143° / 33°0.26
43 °
Old Saybrook, Friday, 11 December
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.26 in
Chance of precipitation37%
Record high60° (2021)
Record low12° (1977)
Sat, 1243° / 32°0.18
43 °
Old Saybrook, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.18 in
Chance of precipitation38%
Record high61° (2021)
Record low8° (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 Old Saybrook, 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 Old Saybrook, 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.