Monthly outlook for Black Hall, CT: average high 60.5°, average low 47.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 16 October (72.1°), the coolest 18 October (35.6°).
60.5°/47.1°
Average high / low
+0.8°
Above normal
3 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
61.7°
60°
+0.9°
25 October – 3 November
58.4°
57.3°
+0.6°
4 November – 13 November
at normal
53.6°
—
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).
Fri, 1672° / 53°0.46
72 °
Black Hall, Friday, 16 October
Rain. High 72°, low 53°.
Pressure29.80 inHg
Wind9.9 mph S
Humidity98%
Visibility3.1 mi
Dew point64°
Sat, 1761° / 41°0.13
61 °
Black Hall, Saturday, 17 October
Light rain. High 61°, low 41°.
Pressure30.09 inHg
Wind12.1 mph NW
Humidity51%
Visibility6.2 mi
Dew point33°
Sun, 1855° / 36°0
55 °
Black Hall, Sunday, 18 October
Clear. High 55°, low 36°.
Pressure30.62 inHg
Wind2.9 mph NE
Humidity45%
Visibility6.2 mi
Dew point26°
Mon, 1961° / 39°0
61 °
Black Hall, Monday, 19 October
Overcast. High 61°, low 39°.
Pressure30.50 inHg
Wind5.8 mph NE
Humidity45%
Visibility6.2 mi
Dew point36°
Tue, 2064° / 46°0.02
64 °
Black Hall, Tuesday, 20 October
Light rain. High 64°, low 46°.
Pressure30.21 inHg
Wind14.7 mph NE
Humidity57%
Visibility—
Dew point41°
Wed, 2159° / 51°0.04
59 °
Black Hall, Wednesday, 21 October
Light rain. High 59°, low 51°.
Pressure30.24 inHg
Wind20 mph NE
Humidity62%
Visibility—
Dew point44°
Thu, 2259° / 48°0
59 °
Black Hall, Thursday, 22 October
Overcast. High 59°, low 48°.
Pressure30.45 inHg
Wind17.8 mph NE
Humidity63%
Visibility—
Dew point43°
Fri, 2361° / 46°0
61 °
Black Hall, Friday, 23 October
Clear. High 61°, low 46°.
Pressure30.30 inHg
Wind11.8 mph N
Humidity61%
Visibility—
Dew point40°
Sat, 2462° / 50°0
62 °
Black Hall, Saturday, 24 October
Clear. High 62°, low 50°.
Pressure30.42 inHg
Wind16.3 mph NE
Humidity66%
Visibility—
Dew point46°
Sun, 2558° / 47°0
58 °
Black Hall, Sunday, 25 October
Overcast. High 58°, low 47°.
Pressure30.53 inHg
Wind14.9 mph NE
Humidity64%
Visibility—
Dew point41°
Mon, 2659° / 45°0
59 °
Black Hall, Monday, 26 October
Mostly clear. High 59°, low 45°.
Pressure30.33 inHg
Wind11.5 mph NE
Humidity70%
Visibility—
Dew point42°
Tue, 2764° / 47°0
64 °
Black Hall, Tuesday, 27 October
Clear. High 64°, low 47°.
Pressure30.03 inHg
Wind14.8 mph N
Humidity55%
Visibility—
Dew point42°
Wed, 2857° / 50°0
57 °
Black Hall, Wednesday, 28 October
Partly cloudy. High 57°, low 50°.
Pressure30.06 inHg
Wind12.1 mph E
Humidity70%
Visibility—
Dew point45°
Thu, 2956° / 53°0.02
56 °
Black Hall, Thursday, 29 October
Light rain. High 56°, low 53°.
Pressure30.12 inHg
Wind17.9 mph E
Humidity74%
Visibility—
Dew point47°
Fri, 3057° / 50°0.04
57 °
Black Hall, Friday, 30 October
Light rain. High 57°, low 50°.
Pressure29.94 inHg
Wind21.9 mph NE
Humidity77%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 46°0.07
56 °
Black Hall, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.07 in
Chance of precipitation23%
Record high72° (2024)
Record low29° (2020)
Sun, 0158° / 47°0.12
58 °
Black Hall, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.12 in
Chance of precipitation28%
Record high74° (2024)
Record low37° (2010)
Mon, 0257° / 47°0.08
57 °
Black Hall, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (2022)
Record low31° (1965)
Tue, 0357° / 46°0.16
57 °
Black Hall, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.16 in
Chance of precipitation30%
Record high69° (2017)
Record low35° (1980)
Wed, 0456° / 46°0.04
56 °
Black Hall, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.04 in
Chance of precipitation27%
Record high68° (1975)
Record low34° (2013)
Thu, 0556° / 46°0.15
56 °
Black Hall, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.15 in
Chance of precipitation40%
Record high70° (2022)
Record low34° (1965)
Fri, 0655° / 45°0.11
55 °
Black Hall, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (2024)
Record low33° (2012)
Sat, 0755° / 44°0.07
55 °
Black Hall, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (2022)
Record low32° (1962)
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)
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.