As of 22:30 EDT

Weather in Haddam, CT

63°

Haddam, Friday, 16 October, 22:30

Mostly clear. Feels like 64°. High 67°, low 49°.

Pressure29.74 inHg

Wind4.6 mph N

Humidity96%

Visibility6.2 mi

Dew point62°

See detailed hourly forecast

Sat, 1762° / 35°

62 °

Haddam, Saturday, 17 October

Overcast. High 62°, low 35°.

Pressure30.15 inHg

Wind11.9 mph NW

Humidity52%

Visibility6.2 mi

Dew point30°

Sun, 1855° / 33°

55 °

Haddam, Sunday, 18 October

Clear. High 55°, low 33°.

Pressure30.56 inHg

Wind4.9 mph N

Humidity47%

Visibility6.2 mi

Dew point29°

Mon, 1960° / 38°

60 °

Haddam, Monday, 19 October

Overcast. High 60°, low 38°.

Pressure30.45 inHg

Wind5.3 mph N

Humidity49%

Visibility6.2 mi

Dew point37°

Tue, 2064° / 44°

64 °

Haddam, Tuesday, 20 October

Overcast. High 64°, low 44°.

Pressure30.21 inHg

Wind10.8 mph N

Humidity59%

Visibility6.2 mi

Dew point45°

Wed, 2158° / 44°

58 °

Haddam, Wednesday, 21 October

Clear. High 58°, low 44°.

Pressure30.30 inHg

Wind12.3 mph N

Humidity61%

Visibility—

Dew point38°

Thu, 2258° / 41°

58 °

Haddam, Thursday, 22 October

Clear. High 58°, low 41°.

Pressure30.12 inHg

Wind11.1 mph N

Humidity67%

Visibility—

Dew point39°

Fri, 2360° / 40°

60 °

Haddam, Friday, 23 October

Clear. High 60°, low 40°.

Pressure30.21 inHg

Wind12.9 mph NE

Humidity45%

Visibility—

Dew point33°

Sat, 2457° / 40°

57 °

Haddam, Saturday, 24 October

Clear. High 57°, low 40°.

Pressure30.36 inHg

Wind11.8 mph NE

Humidity51%

Visibility—

Dew point33°

Sun, 2564° / 41°

64 °

Haddam, Sunday, 25 October

Clear. High 64°, low 41°.

Pressure30.06 inHg

Wind8.6 mph N

Humidity44%

Visibility—

Dew point33°

Mon, 2654° / 40°

54 °

Haddam, Monday, 26 October

Clear. High 54°, low 40°.

Pressure30.12 inHg

Wind16.2 mph NW

Humidity44%

Visibility—

Dew point26°

Tue, 2758° / 37°

58 °

Haddam, Tuesday, 27 October

Overcast. High 58°, low 37°.

Pressure30.27 inHg

Wind5.5 mph SW

Humidity38%

Visibility—

Dew point24°

Wed, 2857° / 44°

57 °

Haddam, Wednesday, 28 October

Overcast. High 57°, low 44°.

Pressure30.03 inHg

Wind8.4 mph W

Humidity83%

Visibility—

Dew point44°

Thu, 2958° / 46°

58 °

Haddam, Thursday, 29 October

Overcast. High 58°, low 46°.

Pressure30.03 inHg

Wind9.4 mph NE

Humidity77%

Visibility—

Dew point46°

Fri, 3055° / 44°

0.03

55 °

Haddam, Friday, 30 October

Light rain. High 55°, low 44°.

Pressure30.06 inHg

Wind7.2 mph NE

Humidity74%

Visibility—

Dew point45°

Sat, 3158° / 52°

0.22

58 °

Haddam, Saturday, 31 October

Light rain. High 58°, low 52°.

Pressure29.71 inHg

Wind9.7 mph S

Humidity92%

Visibility—

Dew point55°

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.