Monthly outlook for Belle Haven, CT: average high 58.1°, average low 45.2°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (67.9°), the coolest 28 October (38.3°).
58.1°/45.2°
Average high / low
+1.3°
Above normal
4 / 5
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
61.9°
57.1°
+2.7°
7 November – 16 November
51.9°
52.4°
-0.3°
17 November – 26 November
at normal
49°
—
October records over 66 years
89.8°2 October 2019All-time high
31.5°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Byram (1 mi).
Thu, 2968° / 45°0
68 °
Belle Haven, Thursday, 29 October
Clear. High 68°, low 45°.
Pressure30.24 inHg
Wind7.7 mph SW
Humidity59%
Visibility6.2 mi
Dew point48°
Fri, 3068° / 47°0
68 °
Belle Haven, Friday, 30 October
Mostly clear. High 68°, low 47°.
Pressure30.06 inHg
Wind9.9 mph NW
Humidity55%
Visibility6.2 mi
Dew point51°
Sat, 3156° / 42°0
56 °
Belle Haven, Saturday, 31 October
Clear. High 56°, low 42°.
Pressure30.39 inHg
Wind7.8 mph NW
Humidity48%
Visibility6.2 mi
Dew point35°
Sun, 0160° / 38°0
60 °
Belle Haven, Sunday, 1 November
Partly cloudy. High 60°, low 38°.
Pressure30.42 inHg
Wind3.4 mph SW
Humidity49%
Visibility6.2 mi
Dew point37°
Mon, 0266° / 44°0
66 °
Belle Haven, Monday, 2 November
Clear. High 66°, low 44°.
Pressure30.36 inHg
Wind4.8 mph W
Humidity64%
Visibility—
Dew point45°
Tue, 0359° / 52°0
59 °
Belle Haven, Tuesday, 3 November
Light rain. High 59°, low 52°.
Pressure30.24 inHg
Wind17.6 mph E
Humidity64%
Visibility—
Dew point45°
Wed, 0454° / 48°0
54 °
Belle Haven, Wednesday, 4 November
Overcast. High 54°, low 48°.
Pressure30.39 inHg
Wind17.2 mph NE
Humidity65%
Visibility—
Dew point38°
Thu, 0564° / 55°0.04
64 °
Belle Haven, Thursday, 5 November
Light rain. High 64°, low 55°.
Pressure30.06 inHg
Wind20 mph SE
Humidity94%
Visibility—
Dew point57°
Fri, 0665° / 54°0.57
65 °
Belle Haven, Friday, 6 November
Rain. High 65°, low 54°.
Pressure29.41 inHg
Wind24.8 mph SE
Humidity73%
Visibility—
Dew point53°
Sat, 0752° / 44°0
52 °
Belle Haven, Saturday, 7 November
Mostly clear. High 52°, low 44°.
Pressure30.06 inHg
Wind14.8 mph NW
Humidity50%
Visibility—
Dew point30°
Sun, 0849° / 41°0
49 °
Belle Haven, Sunday, 8 November
Clear. High 49°, low 41°.
Pressure30.33 inHg
Wind10.6 mph N
Humidity43%
Visibility—
Dew point24°
Mon, 0949° / 38°0
49 °
Belle Haven, Monday, 9 November
Clear. High 49°, low 38°.
Pressure30.42 inHg
Wind6.8 mph N
Humidity43%
Visibility—
Dew point23°
Tue, 1052° / 40°0
52 °
Belle Haven, Tuesday, 10 November
Clear. High 52°, low 40°.
Pressure30.36 inHg
Wind6.2 mph S
Humidity41%
Visibility—
Dew point24°
Wed, 1156° / 48°0.07
56 °
Belle Haven, Wednesday, 11 November
Light rain. High 56°, low 48°.
Pressure30.18 inHg
Wind15.4 mph E
Humidity70%
Visibility—
Dew point43°
Thu, 1254° / 50°2.3
54 °
Belle Haven, Thursday, 12 November
Heavy rain. High 54°, low 50°.
Pressure29.88 inHg
Wind27 mph NE
Humidity89%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1350° / 39°0.19
50 °
Belle Haven, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.19 in
Chance of precipitation37%
Record high69° (1964)
Record low23° (2019)
Sat, 1451° / 39°0.08
51 °
Belle Haven, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.08 in
Chance of precipitation23%
Record high67° (1989)
Record low25° (1986)
Sun, 1551° / 39°0.1
51 °
Belle Haven, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.1 in
Chance of precipitation37%
Record high73° (1993)
Record low24° (1967)
Mon, 1651° / 39°0.12
51 °
Belle Haven, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation28%
Record high69° (2001)
Record low22° (1967)
Tue, 1750° / 38°0.11
50 °
Belle Haven, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation28%
Record high63° (2006)
Record low26° (2019)
Wed, 1850° / 38°0.08
50 °
Belle Haven, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (1963)
Record low28° (2014)
Thu, 1950° / 38°0.07
50 °
Belle Haven, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.07 in
Chance of precipitation23%
Record high63° (1985)
Record low24° (2014)
Fri, 2050° / 38°0.13
50 °
Belle Haven, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.13 in
Chance of precipitation25%
Record high69° (1985)
Record low25° (1986)
Sat, 2149° / 37°0.11
49 °
Belle Haven, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (1985)
Record low20° (1987)
Sun, 2248° / 37°0.14
48 °
Belle Haven, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.14 in
Chance of precipitation35%
Record high64° (2007)
Record low17° (2018)
Mon, 2347° / 36°0.11
47 °
Belle Haven, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.11 in
Chance of precipitation23%
Record high66° (1992)
Record low15° (2018)
Tue, 2448° / 37°0.09
48 °
Belle Haven, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.09 in
Chance of precipitation23%
Record high65° (1979)
Record low16° (1989)
Wed, 2548° / 36°0.13
48 °
Belle Haven, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.13 in
Chance of precipitation32%
Record high66° (1979)
Record low23° (2005)
Thu, 2650° / 37°0.21
50 °
Belle Haven, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.21 in
Chance of precipitation47%
Record high63° (1979)
Record low27° (2005)
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 Belle 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 Belle 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.