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As of 05:31 EDT

Weather in Haddam, CT

44°Current weather

Haddam, Tuesday, 20 October, 05:31

Clear. Feels like 40°. High 66°, low 41°.

Pressure30.21 inHg
Wind6.9 mph N
Humidity85%
Visibility6.2 mi
Dew point40°
Wed, 2158° / 38°0Mostly clear
58 °Mostly clear

Haddam, Wednesday, 21 October

Mostly clear. High 58°, low 38°.

Pressure30.18 inHg
Wind12.2 mph N
Humidity57%
Visibility6.2 mi
Dew point38°
Thu, 2262° / 42°0Clear
62 °Clear

Haddam, Thursday, 22 October

Clear. High 62°, low 42°.

Pressure29.91 inHg
Wind10.4 mph NW
Humidity46%
Visibility6.2 mi
Dew point38°
Fri, 2351° / 39°0Clear
51 °Clear

Haddam, Friday, 23 October

Clear. High 51°, low 39°.

Pressure30.30 inHg
Wind11.3 mph N
Humidity52%
Visibility6.2 mi
Dew point27°
Sat, 2456° / 34°0Partly cloudy
56 °Partly cloudy

Haddam, Saturday, 24 October

Partly cloudy. High 56°, low 34°.

Pressure30.53 inHg
Wind5.6 mph N
Humidity55%
Visibility—
Dew point31°
Sun, 2562° / 37°0Clear
62 °Clear

Haddam, Sunday, 25 October

Clear. High 62°, low 37°.

Pressure30.56 inHg
Wind5.1 mph SW
Humidity60%
Visibility—
Dew point38°
Mon, 2666° / 46°0Overcast
66 °Overcast

Haddam, Monday, 26 October

Overcast. High 66°, low 46°.

Pressure30.30 inHg
Wind5.5 mph SW
Humidity54%
Visibility—
Dew point41°
Tue, 2769° / 52°0Partly cloudy
69 °Partly cloudy

Haddam, Tuesday, 27 October

Partly cloudy. High 69°, low 52°.

Pressure30.03 inHg
Wind11.8 mph NW
Humidity59%
Visibility—
Dew point48°
Wed, 2851° / 35°0Overcast
51 °Overcast

Haddam, Wednesday, 28 October

Overcast. High 51°, low 35°.

Pressure30.12 inHg
Wind12.6 mph NW
Humidity48%
Visibility—
Dew point27°
Thu, 2949° / 31°0Overcast
49 °Overcast

Haddam, Thursday, 29 October

Overcast. High 49°, low 31°.

Pressure30.15 inHg
Wind11.1 mph SW
Humidity41%
Visibility—
Dew point21°
Fri, 3054° / 34°0Overcast
54 °Overcast

Haddam, Friday, 30 October

Overcast. High 54°, low 34°.

Pressure30.12 inHg
Wind10.1 mph SW
Humidity42%
Visibility—
Dew point25°
Sat, 3155° / 40°0Overcast
55 °Overcast

Haddam, Saturday, 31 October

Overcast. High 55°, low 40°.

Pressure30.09 inHg
Wind9.1 mph SW
Humidity48%
Visibility—
Dew point32°
Sun, 0153° / 37°0Clear
53 °Clear

Haddam, Sunday, 1 November

Clear. High 53°, low 37°.

Pressure30.15 inHg
Wind10 mph NW
Humidity47%
Visibility—
Dew point29°
Mon, 0251° / 34°0Clear
51 °Clear

Haddam, Monday, 2 November

Clear. High 51°, low 34°.

Pressure30.24 inHg
Wind7.4 mph NW
Humidity49%
Visibility—
Dew point26°
Tue, 0354° / 35°0Clear
54 °Clear

Haddam, Tuesday, 3 November

Clear. High 54°, low 35°.

Pressure30.27 inHg
Wind6.2 mph NE
Humidity50%
Visibility—
Dew point29°
Wed, 0453° / 42°0.74Rain
53 °Rain

Haddam, Wednesday, 4 November

Rain. High 53°, low 42°.

Pressure29.83 inHg
Wind22.2 mph NE
Humidity92%
Visibility—
Dew point44°

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 Haddam, 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 Haddam, 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.