As of 01:27 EDT

Weather in Hadlyme, CT

39°Current weather

Hadlyme, Monday, 19 October, 01:27

Clear. Feels like 39°. High 60°, low 37°.

Pressure30.53 inHg
Wind0 mph N
Humidity96%
Visibility6.2 mi
Dew point38°

Monthly outlook for Hadlyme, CT: average high 58.8°, average low 44.8°. That is 0.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 20 October (64.7°), the coolest 24 October (33.8°).

58.8°/44.8°
Average high / low
+0.4°
Above normal
2 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October58.7°58.9°-0.1°
29 October – 7 November59°56°+1.7°
8 November – 17 Novemberat normal51.8°—

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).

Tue, 2065° / 45°0Clear
65 °Clear

Hadlyme, Tuesday, 20 October

Clear. High 65°, low 45°.

Pressure30.21 inHg
Wind12.1 mph NE
Humidity47%
Visibility6.2 mi
Dew point42°
Wed, 2156° / 42°0Partly cloudy
56 °Partly cloudy

Hadlyme, Wednesday, 21 October

Partly cloudy. High 56°, low 42°.

Pressure30.24 inHg
Wind11.7 mph NE
Humidity60%
Visibility6.2 mi
Dew point39°
Thu, 2261° / 41°0Clear
61 °Clear

Hadlyme, Thursday, 22 October

Clear. High 61°, low 41°.

Pressure30.00 inHg
Wind10.6 mph N
Humidity48%
Visibility6.2 mi
Dew point36°
Fri, 2351° / 39°0Clear
51 °Clear

Hadlyme, Friday, 23 October

Clear. High 51°, low 39°.

Pressure30.36 inHg
Wind11.3 mph N
Humidity57%
Visibility—
Dew point31°
Sat, 2456° / 34°0Clear
56 °Clear

Hadlyme, Saturday, 24 October

Clear. High 56°, low 34°.

Pressure30.62 inHg
Wind5.6 mph N
Humidity50%
Visibility—
Dew point30°
Sun, 2557° / 41°0Clear
57 °Clear

Hadlyme, Sunday, 25 October

Clear. High 57°, low 41°.

Pressure30.45 inHg
Wind9.6 mph SW
Humidity59%
Visibility—
Dew point37°
Mon, 2663° / 48°0Clear
63 °Clear

Hadlyme, Monday, 26 October

Clear. High 63°, low 48°.

Pressure30.24 inHg
Wind9.6 mph W
Humidity60%
Visibility—
Dew point45°
Tue, 2762° / 47°0Overcast
62 °Overcast

Hadlyme, Tuesday, 27 October

Overcast. High 62°, low 47°.

Pressure30.27 inHg
Wind9 mph SW
Humidity56%
Visibility—
Dew point41°
Wed, 2857° / 49°0.03Light rain
57 °Light rain

Hadlyme, Wednesday, 28 October

Light rain. High 57°, low 49°.

Pressure30.24 inHg
Wind8.1 mph NE
Humidity90%
Visibility—
Dew point53°
Thu, 2955° / 47°0Light rain
55 °Light rain

Hadlyme, Thursday, 29 October

Light rain. High 55°, low 47°.

Pressure30.39 inHg
Wind7.7 mph E
Humidity66%
Visibility—
Dew point39°
Fri, 3057° / 47°0Overcast
57 °Overcast

Hadlyme, Friday, 30 October

Overcast. High 57°, low 47°.

Pressure30.45 inHg
Wind8.5 mph SE
Humidity59%
Visibility—
Dew point39°
Sat, 3160° / 49°0.14Light rain
60 °Light rain

Hadlyme, Saturday, 31 October

Light rain. High 60°, low 49°.

Pressure30.24 inHg
Wind10.1 mph S
Humidity79%
Visibility—
Dew point52°
Sun, 0165° / 60°0.6Rain
65 °Rain

Hadlyme, Sunday, 1 November

Rain. High 65°, low 60°.

Pressure29.88 inHg
Wind20.6 mph SW
Humidity99%
Visibility—
Dew point60°
Mon, 0262° / 48°0Overcast
62 °Overcast

Hadlyme, Monday, 2 November

Overcast. High 62°, low 48°.

Pressure29.80 inHg
Wind17.8 mph W
Humidity62%
Visibility—
Dew point40°
Tue, 0356° / 43°0Clear
56 °Clear

Hadlyme, Tuesday, 3 November

Clear. High 56°, low 43°.

Pressure30.15 inHg
Wind11.5 mph NW
Humidity43%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1450° / 40°0.09Climate normal
50 °Climate normal

Hadlyme, 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°0.13Climate normal
51 °Climate normal

Hadlyme, 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°0.15Climate normal
51 °Climate normal

Hadlyme, 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°0.15Climate normal
50 °Climate normal

Hadlyme, 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)

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.