Monthly outlook for Black Hall, CT: average high 58.6°, average low 45.3°. That is 0.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 26 October (64.3°), the coolest 28 October (35.5°).
58.6°/45.3°
Average high / low
+0.9°
Above normal
1 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
58.8°
57.6°
+0.7°
2 November – 11 November
58.3°
54.8°
+1.9°
12 November – 21 November
at normal
50.2°
—
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 (2 mi).
Sat, 2462° / 37°0
62 °
Black Hall, Saturday, 24 October
Overcast. High 62°, low 37°.
Pressure30.53 inHg
Wind3.8 mph NW
Humidity38%
Visibility6.2 mi
Dew point31°
Sun, 2563° / 40°0
63 °
Black Hall, Sunday, 25 October
Clear. High 63°, low 40°.
Pressure30.53 inHg
Wind1.5 mph S
Humidity42%
Visibility6.2 mi
Dew point39°
Mon, 2664° / 40°0
64 °
Black Hall, Monday, 26 October
Clear. High 64°, low 40°.
Pressure30.21 inHg
Wind4.2 mph W
Humidity46%
Visibility6.2 mi
Dew point41°
Tue, 2754° / 39°0
54 °
Black Hall, Tuesday, 27 October
Clear. High 54°, low 39°.
Pressure30.33 inHg
Wind7.2 mph N
Humidity46%
Visibility6.2 mi
Dew point30°
Wed, 2853° / 35°0
53 °
Black Hall, Wednesday, 28 October
Clear. High 53°, low 35°.
Pressure30.50 inHg
Wind7.6 mph N
Humidity51%
Visibility—
Dew point30°
Thu, 2955° / 44°0
55 °
Black Hall, Thursday, 29 October
Clear. High 55°, low 44°.
Pressure30.39 inHg
Wind10.1 mph SW
Humidity69%
Visibility—
Dew point41°
Fri, 3061° / 54°0
61 °
Black Hall, Friday, 30 October
Clear. High 61°, low 54°.
Pressure30.15 inHg
Wind12.5 mph SW
Humidity70%
Visibility—
Dew point48°
Sat, 3161° / 51°0
61 °
Black Hall, Saturday, 31 October
Mostly clear. High 61°, low 51°.
Pressure30.30 inHg
Wind15.6 mph E
Humidity71%
Visibility—
Dew point49°
Sun, 0156° / 51°0
56 °
Black Hall, Sunday, 1 November
Overcast. High 56°, low 51°.
Pressure30.50 inHg
Wind10.2 mph E
Humidity76%
Visibility—
Dew point46°
Mon, 0260° / 56°0.01
60 °
Black Hall, Monday, 2 November
Light rain. High 60°, low 56°.
Pressure30.36 inHg
Wind6 mph SW
Humidity90%
Visibility—
Dew point55°
Tue, 0358° / 53°0
58 °
Black Hall, Tuesday, 3 November
Overcast. High 58°, low 53°.
Pressure30.36 inHg
Wind13 mph SE
Humidity78%
Visibility—
Dew point50°
Wed, 0462° / 46°0.31
62 °
Black Hall, Wednesday, 4 November
Rain. High 62°, low 46°.
Pressure29.83 inHg
Wind24 mph NW
Humidity85%
Visibility—
Dew point57°
Thu, 0556° / 42°0
56 °
Black Hall, Thursday, 5 November
Partly cloudy. High 56°, low 42°.
Pressure29.97 inHg
Wind22.7 mph NW
Humidity60%
Visibility—
Dew point34°
Fri, 0657° / 48°0
57 °
Black Hall, Friday, 6 November
Clear. High 57°, low 48°.
Pressure29.83 inHg
Wind18.8 mph W
Humidity63%
Visibility—
Dew point41°
Sat, 0756° / 44°0
56 °
Black Hall, Saturday, 7 November
Mostly clear. High 56°, low 44°.
Pressure30.00 inHg
Wind15.7 mph W
Humidity57%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0853° / 43°0.13
53 °
Black Hall, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.13 in
Chance of precipitation32%
Record high71° (2020)
Record low30° (2019)
Mon, 0953° / 43°0.09
53 °
Black Hall, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.09 in
Chance of precipitation22%
Record high67° (1975)
Record low26° (2019)
Tue, 1054° / 43°0.18
54 °
Black Hall, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.18 in
Chance of precipitation40%
Record high65° (1999)
Record low27° (2017)
Wed, 1153° / 43°0.16
53 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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 °
Black Hall, 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)
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 Black Hall, 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 Black Hall, 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.