As of 09:32 EDT

Weather in Hadlyme, CT

58°Current weather

Hadlyme, Thursday, 15 October, 09:32

Clear. Feels like 57°. High 61°, low 50°.

Pressure30.21 inHg
Wind9.6 mph N
Humidity71%
Visibility6.2 mi
Dew point49°

Monthly outlook for Hadlyme, CT: average high 57.9°, average low 41.8°. That is 0.6° below the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 16 October (70.8°), the coolest 18 October (35.3°).

57.9°/41.8°
Average high / low
−0.6°
Below normal
3 / 4
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October59.9°60°-0.1°
25 October – 3 November54.7°57.3°-1.5°
4 November – 13 Novemberat normal53.6°—

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 (9 mi).

Fri, 1671° / 47°0.36Rain
71 °Rain

Hadlyme, Friday, 16 October

Rain. High 71°, low 47°.

Pressure29.80 inHg
Wind12.6 mph S
Humidity98%
Visibility2.7 mi
Dew point63°
Sat, 1761° / 40°0.05Light rain
61 °Light rain

Hadlyme, Saturday, 17 October

Light rain. High 61°, low 40°.

Pressure30.09 inHg
Wind14.9 mph NW
Humidity48%
Visibility6.2 mi
Dew point30°
Sun, 1854° / 35°0Clear
54 °Clear

Hadlyme, Sunday, 18 October

Clear. High 54°, low 35°.

Pressure30.56 inHg
Wind2 mph W
Humidity47%
Visibility6.2 mi
Dew point27°
Mon, 1961° / 43°0Clear
61 °Clear

Hadlyme, Monday, 19 October

Clear. High 61°, low 43°.

Pressure30.56 inHg
Wind7.3 mph SW
Humidity59%
Visibility—
Dew point42°
Tue, 2066° / 43°0Clear
66 °Clear

Hadlyme, Tuesday, 20 October

Clear. High 66°, low 43°.

Pressure30.36 inHg
Wind6.3 mph NW
Humidity62%
Visibility—
Dew point44°
Wed, 2164° / 47°0Partly cloudy
64 °Partly cloudy

Hadlyme, Wednesday, 21 October

Partly cloudy. High 64°, low 47°.

Pressure30.33 inHg
Wind7.9 mph N
Humidity57%
Visibility—
Dew point43°
Thu, 2256° / 44°0Clear
56 °Clear

Hadlyme, Thursday, 22 October

Clear. High 56°, low 44°.

Pressure30.42 inHg
Wind5.8 mph NE
Humidity63%
Visibility—
Dew point41°
Fri, 2355° / 41°0.02Light rain
55 °Light rain

Hadlyme, Friday, 23 October

Light rain. High 55°, low 41°.

Pressure30.30 inHg
Wind16.1 mph N
Humidity56%
Visibility—
Dew point38°
Sat, 2450° / 38°0Clear
50 °Clear

Hadlyme, Saturday, 24 October

Clear. High 50°, low 38°.

Pressure30.62 inHg
Wind15 mph NE
Humidity56%
Visibility—
Dew point30°
Sun, 2553° / 38°0Clear
53 °Clear

Hadlyme, Sunday, 25 October

Clear. High 53°, low 38°.

Pressure30.50 inHg
Wind14.2 mph NE
Humidity61%
Visibility—
Dew point34°
Mon, 2660° / 36°0Clear
60 °Clear

Hadlyme, Monday, 26 October

Clear. High 60°, low 36°.

Pressure30.30 inHg
Wind12.1 mph N
Humidity35%
Visibility—
Dew point25°
Tue, 2755° / 38°0Overcast
55 °Overcast

Hadlyme, Tuesday, 27 October

Overcast. High 55°, low 38°.

Pressure30.39 inHg
Wind12.4 mph SW
Humidity58%
Visibility—
Dew point35°
Wed, 2857° / 43°0Overcast
57 °Overcast

Hadlyme, Wednesday, 28 October

Overcast. High 57°, low 43°.

Pressure30.06 inHg
Wind15.3 mph NW
Humidity56%
Visibility—
Dew point41°
Thu, 2948° / 38°0.01Light rain
48 °Light rain

Hadlyme, Thursday, 29 October

Light rain. High 48°, low 38°.

Pressure30.39 inHg
Wind8.5 mph N
Humidity48%
Visibility—
Dew point27°
Fri, 3055° / 48°0.17Light rain
55 °Light rain

Hadlyme, Friday, 30 October

Light rain. High 55°, low 48°.

Pressure30.18 inHg
Wind6.8 mph SW
Humidity90%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 46°0.07Climate normal
56 °Climate normal

Hadlyme, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low46°
Average precipitation0.07 in
Chance of precipitation23%
Record high72° (2024)
Record low29° (2020)
Sun, 0158° / 47°0.12Climate normal
58 °Climate normal

Hadlyme, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high58°
Average low47°
Average precipitation0.12 in
Chance of precipitation28%
Record high74° (2024)
Record low37° (2010)
Mon, 0257° / 47°0.08Climate normal
57 °Climate normal

Hadlyme, 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°0.16Climate normal
57 °Climate normal

Hadlyme, 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°0.04Climate normal
56 °Climate normal

Hadlyme, 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°0.15Climate normal
56 °Climate normal

Hadlyme, 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°0.11Climate normal
55 °Climate normal

Hadlyme, 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°0.07Climate normal
55 °Climate normal

Hadlyme, 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°0.13Climate normal
53 °Climate normal

Hadlyme, 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°0.09Climate normal
53 °Climate normal

Hadlyme, 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°0.18Climate normal
54 °Climate normal

Hadlyme, 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°0.16Climate normal
53 °Climate normal

Hadlyme, 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°0.16Climate normal
52 °Climate normal

Hadlyme, 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°0.21Climate normal
51 °Climate normal

Hadlyme, 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)

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 Hadlyme, 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 Hadlyme, 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.