Monthly outlook for Old Mystic, CT: average high 51.9°, average low 40.6°. That is 0.2° above the climate normal for November. Precipitation is expected on 6 days (about 2.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 7 November (62.2°), the coolest 17 November (32.3°).
51.9°/40.6°
Average high / low
+0.2°
Above normal
6 / 5
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 November – 16 November
52.5°
52.7°
-0.1°
17 November – 26 November
50.8°
49.3°
+0.9°
27 November – 6 December
at normal
46.7°
—
November records over 66 years
74.3°1 November 2024All-time high
15.1°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Fishers Island (8 mi).
Sun, 0857° / 49°0
57 °
Old Mystic, Sunday, 8 November
Overcast. High 57°, low 49°.
Pressure29.77 inHg
Wind14.4 mph W
Humidity55%
Visibility6.2 mi
Dew point41°
Mon, 0954° / 44°0.09
54 °
Old Mystic, Monday, 9 November
Rain. High 54°, low 44°.
Pressure29.68 inHg
Wind13 mph NW
Humidity62%
Visibility1.8 mi
Dew point41°
Tue, 1051° / 39°0
51 °
Old Mystic, Tuesday, 10 November
Overcast. High 51°, low 39°.
Pressure29.88 inHg
Wind8.9 mph W
Humidity60%
Visibility6.2 mi
Dew point38°
Wed, 1156° / 42°0
56 °
Old Mystic, Wednesday, 11 November
Clear. High 56°, low 42°.
Pressure29.91 inHg
Wind8.7 mph NW
Humidity61%
Visibility—
Dew point38°
Thu, 1256° / 42°0
56 °
Old Mystic, Thursday, 12 November
Overcast. High 56°, low 42°.
Pressure29.80 inHg
Wind13 mph E
Humidity69%
Visibility—
Dew point43°
Fri, 1351° / 48°1.09
51 °
Old Mystic, Friday, 13 November
Heavy rain. High 51°, low 48°.
Pressure29.56 inHg
Wind27.5 mph E
Humidity91%
Visibility—
Dew point46°
Sat, 1452° / 39°0.53
52 °
Old Mystic, Saturday, 14 November
Rain. High 52°, low 39°.
Pressure29.41 inHg
Wind12.3 mph SW
Humidity68%
Visibility—
Dew point41°
Sun, 1542° / 38°0.04
42 °
Old Mystic, Sunday, 15 November
Light rain. High 42°, low 38°.
Pressure29.53 inHg
Wind20.6 mph NW
Humidity78%
Visibility—
Dew point33°
Mon, 1645° / 33°0
45 °
Old Mystic, Monday, 16 November
Clear. High 45°, low 33°.
Pressure30.03 inHg
Wind15.5 mph NW
Humidity60%
Visibility—
Dew point26°
Tue, 1748° / 32°0
48 °
Old Mystic, Tuesday, 17 November
Clear. High 48°, low 32°.
Pressure30.36 inHg
Wind9.5 mph N
Humidity39%
Visibility—
Dew point18°
Wed, 1854° / 39°0
54 °
Old Mystic, Wednesday, 18 November
Clear. High 54°, low 39°.
Pressure30.36 inHg
Wind11.5 mph SW
Humidity60%
Visibility—
Dew point37°
Thu, 1951° / 40°0.12
51 °
Old Mystic, Thursday, 19 November
Light rain. High 51°, low 40°.
Pressure30.12 inHg
Wind13.4 mph N
Humidity79%
Visibility—
Dew point45°
Fri, 2046° / 33°0
46 °
Old Mystic, Friday, 20 November
Clear. High 46°, low 33°.
Pressure30.56 inHg
Wind9.1 mph N
Humidity63%
Visibility—
Dew point29°
Sat, 2155° / 42°0.04
55 °
Old Mystic, Saturday, 21 November
Light rain. High 55°, low 42°.
Pressure30.27 inHg
Wind15.2 mph SW
Humidity71%
Visibility—
Dew point43°
Sun, 2251° / 40°0
51 °
Old Mystic, Sunday, 22 November
Partly cloudy. High 51°, low 40°.
Pressure30.09 inHg
Wind16.8 mph W
Humidity67%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2347° / 36°0.13
47 °
Old Mystic, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.13 in
Chance of precipitation25%
Record high63° (1979)
Record low15° (2018)
Tue, 2448° / 37°0.1
48 °
Old Mystic, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high64° (1979)
Record low17° (1989)
Wed, 2549° / 36°0.16
49 °
Old Mystic, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.16 in
Chance of precipitation23%
Record high65° (1979)
Record low21° (2013)
Thu, 2650° / 38°0.2
50 °
Old Mystic, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.2 in
Chance of precipitation43%
Record high64° (1979)
Record low24° (1978)
Fri, 2749° / 38°0.13
49 °
Old Mystic, Friday, 27 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation35%
Record high61° (1986)
Record low22° (1978)
Sat, 2850° / 38°0.2
50 °
Old Mystic, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.2 in
Chance of precipitation37%
Record high63° (1990)
Record low17° (2002)
Sun, 2948° / 37°0.08
48 °
Old Mystic, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (2011)
Record low25° (1996)
Mon, 3047° / 36°0.14
47 °
Old Mystic, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.14 in
Chance of precipitation33%
Record high62° (2020)
Record low23° (2013)
Tue, 0147° / 36°0.13
47 °
Old Mystic, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.13 in
Chance of precipitation42%
Record high65° (2001)
Record low20° (1989)
Wed, 0246° / 35°0.14
46 °
Old Mystic, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.14 in
Chance of precipitation28%
Record high61° (2006)
Record low16° (1989)
Thu, 0346° / 34°0.17
46 °
Old Mystic, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.17 in
Chance of precipitation28%
Record high62° (2009)
Record low14° (1976)
Fri, 0445° / 33°0.11
45 °
Old Mystic, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation28%
Record high66° (1998)
Record low13° (1989)
Sat, 0544° / 33°0.18
44 °
Old Mystic, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.18 in
Chance of precipitation28%
Record high65° (2001)
Record low15° (2025)
Sun, 0645° / 34°0.17
45 °
Old Mystic, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.17 in
Chance of precipitation45%
Record high64° (2001)
Record low21° (2007)
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 Mystic, 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 Mystic, 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.