Monthly outlook for Old Saybrook, CT: average high 58.2°, average low 44.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 2.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (71.5°), the coolest 28 October (31°).
58.2°/44.7°
Average high / low
+1.3°
Above normal
4 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
60°
56.9°
+1.7°
5 November – 14 November
55°
53°
+1.1°
15 November – 24 November
at normal
49.3°
—
October records over 66 years
80.6°2 October 2019All-time high
29.1°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Old Lyme (4 mi).
Tue, 2757° / 36°0
57 °
Old Saybrook, Tuesday, 27 October
Clear. High 57°, low 36°.
Pressure30.36 inHg
Wind5.7 mph N
Humidity45%
Visibility6.2 mi
Dew point32°
Wed, 2856° / 31°0
56 °
Old Saybrook, Wednesday, 28 October
Overcast. High 56°, low 31°.
Pressure30.47 inHg
Wind2.8 mph S
Humidity49%
Visibility6.2 mi
Dew point36°
Thu, 2964° / 47°0
64 °
Old Saybrook, Thursday, 29 October
Clear. High 64°, low 47°.
Pressure30.27 inHg
Wind8.7 mph SW
Humidity66%
Visibility6.2 mi
Dew point50°
Fri, 3072° / 51°0
72 °
Old Saybrook, Friday, 30 October
Clear. High 72°, low 51°.
Pressure30.06 inHg
Wind5.5 mph W
Humidity58%
Visibility6.2 mi
Dew point53°
Sat, 3160° / 44°0
60 °
Old Saybrook, Saturday, 31 October
Clear. High 60°, low 44°.
Pressure30.36 inHg
Wind10.9 mph N
Humidity56%
Visibility—
Dew point39°
Sun, 0158° / 45°0
58 °
Old Saybrook, Sunday, 1 November
Overcast. High 58°, low 45°.
Pressure30.45 inHg
Wind10.6 mph SE
Humidity77%
Visibility—
Dew point45°
Mon, 0259° / 57°1.34
59 °
Old Saybrook, Monday, 2 November
Heavy rain. High 59°, low 57°.
Pressure29.94 inHg
Wind20 mph N
Humidity96%
Visibility—
Dew point58°
Tue, 0357° / 42°0.08
57 °
Old Saybrook, Tuesday, 3 November
Light rain. High 57°, low 42°.
Pressure29.94 inHg
Wind16.6 mph N
Humidity77%
Visibility—
Dew point44°
Wed, 0450° / 39°0
50 °
Old Saybrook, Wednesday, 4 November
Light rain. High 50°, low 39°.
Pressure30.45 inHg
Wind22.2 mph E
Humidity64%
Visibility—
Dew point32°
Thu, 0560° / 49°0.63
60 °
Old Saybrook, Thursday, 5 November
Rain. High 60°, low 49°.
Pressure29.94 inHg
Wind32.7 mph E
Humidity93%
Visibility—
Dew point51°
Fri, 0656° / 45°0.01
56 °
Old Saybrook, Friday, 6 November
Light rain. High 56°, low 45°.
Pressure29.83 inHg
Wind21.8 mph W
Humidity74%
Visibility—
Dew point45°
Sat, 0749° / 45°0
49 °
Old Saybrook, Saturday, 7 November
Overcast. High 49°, low 45°.
Pressure30.18 inHg
Wind12.9 mph N
Humidity66%
Visibility—
Dew point36°
Sun, 0852° / 45°0
52 °
Old Saybrook, Sunday, 8 November
Overcast. High 52°, low 45°.
Pressure30.33 inHg
Wind10.4 mph NE
Humidity67%
Visibility—
Dew point38°
Mon, 0955° / 49°0
55 °
Old Saybrook, Monday, 9 November
Overcast. High 55°, low 49°.
Pressure30.18 inHg
Wind12.2 mph SW
Humidity70%
Visibility—
Dew point42°
Tue, 1059° / 54°0.13
59 °
Old Saybrook, Tuesday, 10 November
Light rain. High 59°, low 54°.
Pressure29.91 inHg
Wind12.9 mph S
Humidity81%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1153° / 43°0.16
53 °
Old Saybrook, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.16 in
Chance of precipitation35%
Record high67° (2022)
Record low23° (2017)
Thu, 1252° / 41°0.16
52 °
Old Saybrook, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.16 in
Chance of precipitation38%
Record high71° (2022)
Record low28° (2019)
Fri, 1351° / 40°0.21
51 °
Old Saybrook, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.21 in
Chance of precipitation40%
Record high65° (1964)
Record low22° (2019)
Sat, 1450° / 40°0.09
50 °
Old Saybrook, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.09 in
Chance of precipitation22%
Record high62° (1989)
Record low25° (1986)
Sun, 1551° / 40°0.13
51 °
Old Saybrook, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.13 in
Chance of precipitation42%
Record high67° (1993)
Record low24° (1967)
Mon, 1651° / 40°0.15
51 °
Old Saybrook, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.15 in
Chance of precipitation35%
Record high64° (2001)
Record low23° (1967)
Tue, 1750° / 40°0.15
50 °
Old Saybrook, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.15 in
Chance of precipitation28%
Record high65° (2024)
Record low26° (2019)
Wed, 1850° / 40°0.08
50 °
Old Saybrook, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high63° (2024)
Record low27° (2020)
Thu, 1950° / 39°0.06
50 °
Old Saybrook, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (2021)
Record low24° (1986)
Fri, 2049° / 39°0.13
49 °
Old Saybrook, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high64° (1985)
Record low20° (1986)
Sat, 2149° / 38°0.11
49 °
Old Saybrook, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.11 in
Chance of precipitation30%
Record high60° (2020)
Record low20° (1987)
Sun, 2248° / 38°0.15
48 °
Old Saybrook, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.15 in
Chance of precipitation37%
Record high60° (1994)
Record low15° (2018)
Mon, 2347° / 37°0.13
47 °
Old Saybrook, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.13 in
Chance of precipitation25%
Record high60° (1992)
Record low15° (2018)
Tue, 2448° / 38°0.1
48 °
Old Saybrook, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (1979)
Record low19° (1989)
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.