Weather in New Haven, CT
New Haven, Sunday, 18 October, 13:53
Clear. Feels like 53°. High 56°, low 34°.
Monthly outlook for New Haven, CT: average high 59.9°, average low 46.5°. That is 0.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (70.7°), the coolest 18 October (34.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 57.9° | 59.7° | -1° |
| 28 October – 6 November | 63.4° | 56.8° | +3.7° |
| 7 November – 16 November | at normal | 52.3° | — |
October records over 66 years
0
New Haven, Monday, 19 October
Overcast. High 58°, low 43°.
0New Haven, Tuesday, 20 October
Overcast. High 63°, low 48°.
0New Haven, Wednesday, 21 October
Clear. High 57°, low 43°.
0New Haven, Thursday, 22 October
Clear. High 62°, low 41°.
0New Haven, Friday, 23 October
Clear. High 52°, low 40°.
0New Haven, Saturday, 24 October
Clear. High 53°, low 36°.
0New Haven, Sunday, 25 October
Overcast. High 58°, low 44°.
0
New Haven, Monday, 26 October
Mostly clear. High 62°, low 49°.
0New Haven, Tuesday, 27 October
Overcast. High 59°, low 45°.
0
New Haven, Wednesday, 28 October
Partly cloudy. High 54°, low 40°.
0.38
New Haven, Thursday, 29 October
Rain. High 62°, low 54°.
0.91New Haven, Friday, 30 October
Heavy rain. High 71°, low 61°.
0New Haven, Saturday, 31 October
Overcast. High 66°, low 58°.
0.06New Haven, Sunday, 1 November
Light rain. High 69°, low 58°.
0New Haven, Monday, 2 November
Overcast. High 59°, low 48°.
0.11New Haven, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05New Haven, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.14
New Haven, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09New Haven, Friday, 6 November
Climate normal for this date — 60-year average.
0.09New Haven, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16New Haven, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09New Haven, Monday, 9 November
Climate normal for this date — 60-year average.
0.15New Haven, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15New Haven, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15New Haven, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21New Haven, Friday, 13 November
Climate normal for this date — 60-year average.
0.09New Haven, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12New Haven, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14New Haven, Monday, 16 November
Climate normal for this date — 60-year average.
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 New Haven, 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 New Haven, 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.
Sun and moon today
Weather history
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