Monthly outlook for North Haven, CT: average high 59.2°, average low 42°. That is 0.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 22 October (66.3°), the coolest 24 October (35.4°).
59.2°/42°
Average high / low
+0.6°
Above normal
3 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
61.1°
58.7°
+1.3°
31 October – 9 November
56°
55.9°
+0.1°
10 November – 19 November
at normal
51.2°
—
October records over 66 years
87.4°2 October 2019All-time high
28.6°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — New Haven (6 mi).
Thu, 2266° / 46°0
66 °
North Haven, Thursday, 22 October
Clear. High 66°, low 46°.
Pressure29.97 inHg
Wind11.9 mph N
Humidity35%
Visibility6.2 mi
Dew point32°
Fri, 2359° / 41°0
59 °
North Haven, Friday, 23 October
Clear. High 59°, low 41°.
Pressure30.36 inHg
Wind8.5 mph N
Humidity48%
Visibility6.2 mi
Dew point30°
Sat, 2460° / 35°0
60 °
North Haven, Saturday, 24 October
Overcast. High 60°, low 35°.
Pressure30.53 inHg
Wind1.8 mph N
Humidity47%
Visibility6.2 mi
Dew point34°
Sun, 2562° / 36°0
62 °
North Haven, Sunday, 25 October
Clear. High 62°, low 36°.
Pressure30.53 inHg
Wind1 mph N
Humidity44%
Visibility6.2 mi
Dew point35°
Mon, 2665° / 39°0
65 °
North Haven, Monday, 26 October
Clear. High 65°, low 39°.
Pressure30.36 inHg
Wind4.8 mph NW
Humidity53%
Visibility—
Dew point38°
Tue, 2760° / 47°0
60 °
North Haven, Tuesday, 27 October
Partly cloudy. High 60°, low 47°.
Pressure30.39 inHg
Wind9 mph N
Humidity64%
Visibility—
Dew point43°
Wed, 2861° / 46°0
61 °
North Haven, Wednesday, 28 October
Overcast. High 61°, low 46°.
Pressure30.24 inHg
Wind8.8 mph SW
Humidity61%
Visibility—
Dew point40°
Thu, 2957° / 44°0.01
57 °
North Haven, Thursday, 29 October
Light rain. High 57°, low 44°.
Pressure30.15 inHg
Wind12.5 mph N
Humidity44%
Visibility—
Dew point32°
Fri, 3059° / 40°0
59 °
North Haven, Friday, 30 October
Clear. High 59°, low 40°.
Pressure30.36 inHg
Wind4 mph SW
Humidity40%
Visibility—
Dew point28°
Sat, 3159° / 42°0
59 °
North Haven, Saturday, 31 October
Clear. High 59°, low 42°.
Pressure30.45 inHg
Wind5.8 mph SE
Humidity46%
Visibility—
Dew point33°
Sun, 0160° / 42°0
60 °
North Haven, Sunday, 1 November
Clear. High 60°, low 42°.
Pressure30.47 inHg
Wind5.4 mph SE
Humidity59%
Visibility—
Dew point39°
Mon, 0257° / 45°0.04
57 °
North Haven, Monday, 2 November
Light rain. High 57°, low 45°.
Pressure30.12 inHg
Wind11.1 mph SW
Humidity75%
Visibility—
Dew point45°
Tue, 0353° / 40°0.06
53 °
North Haven, Tuesday, 3 November
Light rain. High 53°, low 40°.
Pressure29.74 inHg
Wind18.6 mph NW
Humidity61%
Visibility—
Dew point35°
Wed, 0448° / 40°0
48 °
North Haven, Wednesday, 4 November
Mostly clear. High 48°, low 40°.
Pressure30.03 inHg
Wind16.9 mph W
Humidity47%
Visibility—
Dew point26°
Thu, 0559° / 45°0.49
59 °
North Haven, Thursday, 5 November
Rain. High 59°, low 45°.
Pressure30.00 inHg
Wind21.9 mph S
Humidity63%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0655° / 45°0.09
55 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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)
Fri, 1350° / 40°0.21
50 °
North Haven, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.21 in
Chance of precipitation42%
Record high67° (1964)
Record low23° (2019)
Sat, 1450° / 40°0.09
50 °
North Haven, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.09 in
Chance of precipitation22%
Record high64° (1993)
Record low24° (2019)
Sun, 1551° / 40°0.12
51 °
North Haven, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation42%
Record high71° (1993)
Record low24° (1967)
Mon, 1651° / 40°0.14
51 °
North Haven, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.14 in
Chance of precipitation35%
Record high66° (2001)
Record low23° (1967)
Tue, 1750° / 39°0.13
50 °
North Haven, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.13 in
Chance of precipitation30%
Record high65° (2024)
Record low24° (2019)
Wed, 1850° / 39°0.08
50 °
North Haven, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.08 in
Chance of precipitation23%
Record high63° (1963)
Record low26° (2020)
Thu, 1950° / 39°0.06
50 °
North Haven, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high61° (1985)
Record low23° (2020)
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 North 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 North 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.