Monthly outlook for Grove Beach, CT: average high 59.3°, average low 46.7°. That is 0.9° above the climate normal for October. Precipitation is expected on 1 day (about 1.1 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 22 October (65.5°), the coolest 24 October (36.1°).
59.3°/46.7°
Average high / low
+0.9°
Above normal
1 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
60.1°
58.2°
+1°
31 October – 9 November
58°
55.5°
+1.4°
10 November – 19 November
at normal
51.1°
—
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 (10 mi).
Thu, 2265° / 46°0
65 °
Grove Beach, Thursday, 22 October
Overcast. High 65°, low 46°.
Pressure29.94 inHg
Wind11.6 mph N
Humidity42%
Visibility6.2 mi
Dew point35°
Fri, 2355° / 40°0
55 °
Grove Beach, Friday, 23 October
Clear. High 55°, low 40°.
Pressure30.39 inHg
Wind7.5 mph N
Humidity47%
Visibility6.2 mi
Dew point32°
Sat, 2458° / 36°0
58 °
Grove Beach, Saturday, 24 October
Partly cloudy. High 58°, low 36°.
Pressure30.56 inHg
Wind3.1 mph NW
Humidity42%
Visibility6.2 mi
Dew point33°
Sun, 2562° / 36°0
62 °
Grove Beach, Sunday, 25 October
Clear. High 62°, low 36°.
Pressure30.53 inHg
Wind0.8 mph W
Humidity48%
Visibility6.2 mi
Dew point39°
Mon, 2663° / 40°0
63 °
Grove Beach, Monday, 26 October
Clear. High 63°, low 40°.
Pressure30.36 inHg
Wind7 mph NW
Humidity57%
Visibility—
Dew point41°
Tue, 2755° / 46°0
55 °
Grove Beach, Tuesday, 27 October
Clear. High 55°, low 46°.
Pressure30.39 inHg
Wind11.6 mph N
Humidity47%
Visibility—
Dew point32°
Wed, 2858° / 49°0
58 °
Grove Beach, Wednesday, 28 October
Overcast. High 58°, low 49°.
Pressure30.47 inHg
Wind13.8 mph S
Humidity62%
Visibility—
Dew point42°
Thu, 2964° / 57°0
64 °
Grove Beach, Thursday, 29 October
Light rain. High 64°, low 57°.
Pressure30.24 inHg
Wind14.1 mph SW
Humidity80%
Visibility—
Dew point55°
Fri, 3060° / 46°0.01
60 °
Grove Beach, Friday, 30 October
Light rain. High 60°, low 46°.
Pressure30.18 inHg
Wind14.6 mph N
Humidity71%
Visibility—
Dew point49°
Sat, 3154° / 42°0
54 °
Grove Beach, Saturday, 31 October
Clear. High 54°, low 42°.
Pressure30.56 inHg
Wind15 mph E
Humidity50%
Visibility—
Dew point31°
Sun, 0156° / 44°0
56 °
Grove Beach, Sunday, 1 November
Overcast. High 56°, low 44°.
Pressure30.68 inHg
Wind14.5 mph SE
Humidity62%
Visibility—
Dew point39°
Mon, 0262° / 57°0.02
62 °
Grove Beach, Monday, 2 November
Light rain. High 62°, low 57°.
Pressure30.45 inHg
Wind11.9 mph SE
Humidity79%
Visibility—
Dew point54°
Tue, 0361° / 56°0
61 °
Grove Beach, Tuesday, 3 November
Light rain. High 61°, low 56°.
Pressure30.30 inHg
Wind13.9 mph E
Humidity78%
Visibility—
Dew point54°
Wed, 0457° / 54°0.03
57 °
Grove Beach, Wednesday, 4 November
Light rain. High 57°, low 54°.
Pressure30.24 inHg
Wind23.7 mph E
Humidity87%
Visibility—
Dew point52°
Thu, 0558° / 54°1.08
58 °
Grove Beach, Thursday, 5 November
Rain. High 58°, low 54°.
Pressure30.06 inHg
Wind26.7 mph E
Humidity94%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0655° / 45°0.11
55 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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 °
Grove Beach, 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)
Sat, 1450° / 40°0.09
50 °
Grove Beach, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.09 in
Chance of precipitation22%
Record high62° (1989)
Record low25° (1986)
Sun, 1551° / 40°0.13
51 °
Grove Beach, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.13 in
Chance of precipitation42%
Record high67° (1993)
Record low24° (1967)
Mon, 1651° / 40°0.15
51 °
Grove Beach, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.15 in
Chance of precipitation35%
Record high64° (2001)
Record low23° (1967)
Tue, 1750° / 40°0.15
50 °
Grove Beach, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.15 in
Chance of precipitation28%
Record high65° (2024)
Record low26° (2019)
Wed, 1850° / 40°0.08
50 °
Grove Beach, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high63° (2024)
Record low27° (2020)
Thu, 1950° / 39°0.06
50 °
Grove Beach, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (2021)
Record low24° (1986)
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 Grove Beach, 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 Grove Beach, 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.