Monthly outlook for New Haven, CT: average high 58.2°, average low 44.8°. That is 1.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 14 October (74.2°), the coolest 18 October (34.6°).
58.2°/44.8°
Average high / low
−1.1°
Below normal
2 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
62.1°
61.1°
+0.5°
24 October – 2 November
51.5°
57.9°
-3.5°
3 November – 12 November
at normal
54.5°
—
October records over 66 years
87.4°2 October 2019All-time high
28.6°31 October 2020All-time low
Thu, 1559° / 50°0
59 °
New Haven, Thursday, 15 October
Partly cloudy. High 59°, low 50°.
Pressure30.24 inHg
Wind4.9 mph N
Humidity54%
Visibility6.2 mi
Dew point42°
Fri, 1672° / 54°0.78
72 °
New Haven, Friday, 16 October
Rain. High 72°, low 54°.
Pressure29.80 inHg
Wind9.9 mph S
Humidity94%
Visibility6.2 mi
Dew point62°
Sat, 1763° / 40°0.01
63 °
New Haven, Saturday, 17 October
Light rain. High 63°, low 40°.
Pressure30.06 inHg
Wind13.8 mph NW
Humidity48%
Visibility6.2 mi
Dew point31°
Sun, 1853° / 35°0
53 °
New Haven, Sunday, 18 October
Clear. High 53°, low 35°.
Pressure30.59 inHg
Wind6.9 mph NW
Humidity52%
Visibility—
Dew point29°
Mon, 1961° / 39°0
61 °
New Haven, Monday, 19 October
Clear. High 61°, low 39°.
Pressure30.59 inHg
Wind8.1 mph W
Humidity58%
Visibility—
Dew point39°
Tue, 2064° / 53°0
64 °
New Haven, Tuesday, 20 October
Overcast. High 64°, low 53°.
Pressure30.33 inHg
Wind8.9 mph W
Humidity62%
Visibility—
Dew point47°
Wed, 2165° / 52°0
65 °
New Haven, Wednesday, 21 October
Clear. High 65°, low 52°.
Pressure30.21 inHg
Wind6 mph S
Humidity56%
Visibility—
Dew point45°
Thu, 2261° / 45°0.12
61 °
New Haven, Thursday, 22 October
Light rain. High 61°, low 45°.
Pressure29.94 inHg
Wind11.9 mph SW
Humidity76%
Visibility—
Dew point51°
Fri, 2348° / 40°0
48 °
New Haven, Friday, 23 October
Clear. High 48°, low 40°.
Pressure29.91 inHg
Wind17.6 mph NW
Humidity53%
Visibility—
Dew point29°
Sat, 2448° / 39°0
48 °
New Haven, Saturday, 24 October
Overcast. High 48°, low 39°.
Pressure29.71 inHg
Wind20.1 mph NW
Humidity56%
Visibility—
Dew point29°
Sun, 2559° / 44°0
59 °
New Haven, Sunday, 25 October
Partly cloudy. High 59°, low 44°.
Pressure29.80 inHg
Wind12.8 mph NW
Humidity44%
Visibility—
Dew point30°
Mon, 2653° / 46°0.03
53 °
New Haven, Monday, 26 October
Light rain. High 53°, low 46°.
Pressure29.74 inHg
Wind17.1 mph W
Humidity72%
Visibility—
Dew point42°
Tue, 2754° / 41°0
54 °
New Haven, Tuesday, 27 October
Clear. High 54°, low 41°.
Pressure29.88 inHg
Wind11.2 mph W
Humidity52%
Visibility—
Dew point32°
Wed, 2848° / 39°0
48 °
New Haven, Wednesday, 28 October
Overcast. High 48°, low 39°.
Pressure29.80 inHg
Wind11.9 mph W
Humidity55%
Visibility—
Dew point31°
Thu, 2947° / 39°0
47 °
New Haven, Thursday, 29 October
Mostly clear. High 47°, low 39°.
Pressure29.80 inHg
Wind12.2 mph NW
Humidity59%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3056° / 45°0.13
56 °
New Haven, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.13 in
Chance of precipitation27%
Record high69° (2024)
Record low34° (2020)
Sat, 3157° / 45°0.07
57 °
New Haven, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (2024)
Record low29° (2020)
Sun, 0158° / 47°0.12
58 °
New Haven, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high79° (2024)
Record low36° (2023)
Mon, 0258° / 47°0.07
58 °
New Haven, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.07 in
Chance of precipitation33%
Record high69° (1971)
Record low30° (2023)
Tue, 0358° / 46°0.11
58 °
New Haven, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2003)
Record low34° (1980)
Wed, 0456° / 45°0.05
56 °
New Haven, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (1975)
Record low33° (2020)
Thu, 0556° / 45°0.14
56 °
New Haven, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.14 in
Chance of precipitation35%
Record high72° (2022)
Record low35° (1965)
Fri, 0655° / 45°0.09
55 °
New Haven, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.09 in
Chance of precipitation32%
Record high74° (2024)
Record low33° (2012)
Sat, 0755° / 44°0.09
55 °
New Haven, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (2022)
Record low32° (1962)
Sun, 0853° / 42°0.16
53 °
New Haven, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.16 in
Chance of precipitation32%
Record high72° (2020)
Record low29° (2019)
Mon, 0954° / 42°0.09
54 °
New Haven, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.09 in
Chance of precipitation23%
Record high70° (1975)
Record low24° (2019)
Tue, 1054° / 43°0.15
54 °
New Haven, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (2020)
Record low26° (2017)
Wed, 1153° / 42°0.15
53 °
New Haven, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.15 in
Chance of precipitation40%
Record high68° (2020)
Record low23° (2017)
Thu, 1252° / 41°0.15
52 °
New Haven, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.15 in
Chance of precipitation38%
Record high71° (2022)
Record low26° (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 New Haven, 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 New Haven, 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.