Monthly outlook for North Haven, CT: average high 61.5°, average low 44.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 14 October (75.5°), the coolest 18 October (34.1°).
61.5°/44.1°
Average high / low
+0.8°
Above normal
4 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
63.3°
61.1°
+1.2°
24 October – 2 November
58.5°
57.9°
+0.3°
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
Climate normals and records are computed from the nearest reference point — New Haven (6 mi).
Thu, 1560° / 44°0
60 °
North Haven, Thursday, 15 October
Mostly clear. High 60°, low 44°.
Pressure30.24 inHg
Wind7 mph N
Humidity54%
Visibility6.2 mi
Dew point41°
Fri, 1668° / 43°0.33
68 °
North Haven, Friday, 16 October
Rain. High 68°, low 43°.
Pressure29.83 inHg
Wind10.6 mph S
Humidity91%
Visibility6.2 mi
Dew point61°
Sat, 1763° / 40°0
63 °
North Haven, Saturday, 17 October
Clear. High 63°, low 40°.
Pressure30.06 inHg
Wind13.3 mph NW
Humidity47%
Visibility6.2 mi
Dew point32°
Sun, 1851° / 34°0
51 °
North Haven, Sunday, 18 October
Clear. High 51°, low 34°.
Pressure30.59 inHg
Wind3 mph N
Humidity50%
Visibility6.2 mi
Dew point24°
Mon, 1959° / 37°0
59 °
North Haven, Monday, 19 October
Clear. High 59°, low 37°.
Pressure30.62 inHg
Wind5.5 mph SW
Humidity54%
Visibility—
Dew point36°
Tue, 2066° / 43°0
66 °
North Haven, Tuesday, 20 October
Overcast. High 66°, low 43°.
Pressure30.39 inHg
Wind6.1 mph W
Humidity60%
Visibility—
Dew point44°
Wed, 2166° / 51°0
66 °
North Haven, Wednesday, 21 October
Clear. High 66°, low 51°.
Pressure30.33 inHg
Wind4.9 mph N
Humidity63%
Visibility—
Dew point48°
Thu, 2265° / 51°0.06
65 °
North Haven, Thursday, 22 October
Light rain. High 65°, low 51°.
Pressure30.18 inHg
Wind17.1 mph SW
Humidity67%
Visibility—
Dew point49°
Fri, 2359° / 43°0.02
59 °
North Haven, Friday, 23 October
Light rain. High 59°, low 43°.
Pressure30.18 inHg
Wind16.9 mph NW
Humidity50%
Visibility—
Dew point32°
Sat, 2459° / 39°0
59 °
North Haven, Saturday, 24 October
Overcast. High 59°, low 39°.
Pressure30.33 inHg
Wind7.8 mph SW
Humidity42%
Visibility—
Dew point29°
Sun, 2563° / 47°0.26
63 °
North Haven, Sunday, 25 October
Rain. High 63°, low 47°.
Pressure29.88 inHg
Wind16 mph W
Humidity69%
Visibility—
Dew point51°
Mon, 2650° / 40°0
50 °
North Haven, Monday, 26 October
Clear. High 50°, low 40°.
Pressure30.09 inHg
Wind12.8 mph NW
Humidity46%
Visibility—
Dew point27°
Tue, 2757° / 38°0
57 °
North Haven, Tuesday, 27 October
Overcast. High 57°, low 38°.
Pressure30.15 inHg
Wind8.3 mph W
Humidity52%
Visibility—
Dew point32°
Wed, 2860° / 45°0
60 °
North Haven, Wednesday, 28 October
Overcast. High 60°, low 45°.
Pressure30.15 inHg
Wind7.9 mph SW
Humidity57%
Visibility—
Dew point41°
Thu, 2962° / 55°0.59
62 °
North Haven, Thursday, 29 October
Rain. High 62°, low 55°.
Pressure29.85 inHg
Wind19.3 mph S
Humidity95%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3056° / 45°0.13
56 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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 °
North 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 °
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)
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.