Weather in Seymour, CT
Seymour, Wednesday, 21 October, 06:01
Mostly clear. Feels like 41°. High 61°, low 42°.
Monthly outlook for Seymour, CT: average high 58.8°, average low 43.6°. That is 0.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 27 October (67.9°), the coolest 1 November (32.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 60.4° | 58.7° | +0.9° |
| 31 October – 9 November | 56.1° | 55.9° | +0.1° |
| 10 November – 19 November | at normal | 51.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — New Haven (10 mi).
0
Seymour, Thursday, 22 October
Clear. High 65°, low 38°.
0Seymour, Friday, 23 October
Clear. High 56°, low 38°.
0Seymour, Saturday, 24 October
Clear. High 59°, low 35°.
0Seymour, Sunday, 25 October
Clear. High 64°, low 38°.
0Seymour, Monday, 26 October
Clear. High 65°, low 40°.
0
Seymour, Tuesday, 27 October
Overcast. High 68°, low 49°.
0Seymour, Wednesday, 28 October
Overcast. High 53°, low 49°.
0.03
Seymour, Thursday, 29 October
Light rain. High 61°, low 51°.
0Seymour, Friday, 30 October
Clear. High 53°, low 40°.
0Seymour, Saturday, 31 October
Clear. High 47°, low 34°.
0Seymour, Sunday, 1 November
Overcast. High 51°, low 32°.
0.03Seymour, Monday, 2 November
Light rain. High 58°, low 48°.
0.38Seymour, Tuesday, 3 November
Rain. High 61°, low 56°.
0.27Seymour, Wednesday, 4 November
Rain. High 58°, low 53°.
0Seymour, Thursday, 5 November
Overcast. High 61°, low 53°.
0.09
Seymour, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Seymour, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Seymour, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Seymour, Monday, 9 November
Climate normal for this date — 60-year average.
0.15
Seymour, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Seymour, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Seymour, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21Seymour, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Seymour, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Seymour, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Seymour, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Seymour, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Seymour, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Seymour, Thursday, 19 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 Seymour, 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 Seymour, 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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