Monthly outlook for Grove Beach, CT: average high 58.9°, average low 45.5°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 1 November (67.2°), the coolest 18 October (37.1°).
58.9°/45.5°
Average high / low
+0.3°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
59.1°
59.3°
-0.1°
27 October – 5 November
58.4°
56.7°
+1°
6 November – 15 November
at normal
52.6°
—
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).
Sun, 1855° / 37°0
55 °
Grove Beach, Sunday, 18 October
Clear. High 55°, low 37°.
Pressure30.56 inHg
Wind6.7 mph N
Humidity43%
Visibility6.2 mi
Dew point29°
Mon, 1961° / 39°0
61 °
Grove Beach, Monday, 19 October
Overcast. High 61°, low 39°.
Pressure30.39 inHg
Wind7.4 mph NE
Humidity43%
Visibility6.2 mi
Dew point36°
Tue, 2064° / 49°0
64 °
Grove Beach, Tuesday, 20 October
Clear. High 64°, low 49°.
Pressure30.21 inHg
Wind14.7 mph NE
Humidity48%
Visibility6.2 mi
Dew point42°
Wed, 2156° / 44°0
56 °
Grove Beach, Wednesday, 21 October
Partly cloudy. High 56°, low 44°.
Pressure30.24 inHg
Wind12.2 mph NE
Humidity55%
Visibility6.2 mi
Dew point38°
Thu, 2262° / 41°0
62 °
Grove Beach, Thursday, 22 October
Clear. High 62°, low 41°.
Pressure30.03 inHg
Wind11.2 mph N
Humidity53%
Visibility—
Dew point36°
Fri, 2359° / 43°0
59 °
Grove Beach, Friday, 23 October
Clear. High 59°, low 43°.
Pressure30.24 inHg
Wind10.4 mph NE
Humidity47%
Visibility—
Dew point32°
Sat, 2454° / 46°0
54 °
Grove Beach, Saturday, 24 October
Clear. High 54°, low 46°.
Pressure30.56 inHg
Wind13.5 mph NE
Humidity59%
Visibility—
Dew point37°
Sun, 2557° / 49°0
57 °
Grove Beach, Sunday, 25 October
Overcast. High 57°, low 49°.
Pressure30.53 inHg
Wind11.9 mph SW
Humidity59%
Visibility—
Dew point40°
Mon, 2662° / 55°0
62 °
Grove Beach, Monday, 26 October
Partly cloudy. High 62°, low 55°.
Pressure30.21 inHg
Wind14.6 mph SW
Humidity69%
Visibility—
Dew point48°
Tue, 2761° / 47°0.15
61 °
Grove Beach, Tuesday, 27 October
Rain. High 61°, low 47°.
Pressure29.97 inHg
Wind17.2 mph N
Humidity84%
Visibility—
Dew point52°
Wed, 2849° / 41°0
49 °
Grove Beach, Wednesday, 28 October
Clear. High 49°, low 41°.
Pressure30.27 inHg
Wind18.7 mph N
Humidity51%
Visibility—
Dew point27°
Thu, 2955° / 37°0
55 °
Grove Beach, Thursday, 29 October
Clear. High 55°, low 37°.
Pressure30.27 inHg
Wind13 mph N
Humidity40%
Visibility—
Dew point24°
Fri, 3058° / 47°0
58 °
Grove Beach, Friday, 30 October
Clear. High 58°, low 47°.
Pressure30.21 inHg
Wind9.3 mph SW
Humidity44%
Visibility—
Dew point32°
Sat, 3161° / 54°0
61 °
Grove Beach, Saturday, 31 October
Mostly clear. High 61°, low 54°.
Pressure30.30 inHg
Wind14.6 mph S
Humidity67%
Visibility—
Dew point48°
Sun, 0167° / 56°0
67 °
Grove Beach, Sunday, 1 November
Clear. High 67°, low 56°.
Pressure30.15 inHg
Wind14.4 mph SW
Humidity66%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0257° / 47°0.08
57 °
Grove Beach, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (2022)
Record low31° (1965)
Tue, 0357° / 46°0.16
57 °
Grove Beach, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.16 in
Chance of precipitation30%
Record high69° (2017)
Record low35° (1980)
Wed, 0456° / 46°0.04
56 °
Grove Beach, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.04 in
Chance of precipitation27%
Record high68° (1975)
Record low34° (2013)
Thu, 0556° / 46°0.15
56 °
Grove Beach, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.15 in
Chance of precipitation40%
Record high70° (2022)
Record low34° (1965)
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)
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.