Weather in Katama, MA
Katama, Sunday, 11 October, 14:27
Overcast. Feels like 58°. High 60°, low 51°.
Monthly outlook for Katama, MA: average high 58°, average low 50.6°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (71.7°), the coolest 18 October (40.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 60° | 59.8° | +0.1° |
| 21 October – 30 October | 54.7° | 57.2° | -1.4° |
| 31 October – 9 November | at normal | 55° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Edgartown (2 mi).
0.35
Katama, Monday, 12 October
Rain. High 64°, low 52°.
0.02Katama, Tuesday, 13 October
Light rain. High 64°, low 53°.
0Katama, Wednesday, 14 October
Overcast. High 72°, low 59°.
0
Katama, Thursday, 15 October
Clear. High 62°, low 51°.
1.1Katama, Friday, 16 October
Rain. High 65°, low 50°.
0.2Katama, Saturday, 17 October
Rain. High 55°, low 48°.
0.18Katama, Sunday, 18 October
Light rain. High 47°, low 40°.
0Katama, Monday, 19 October
Clear. High 52°, low 43°.
0
Katama, Tuesday, 20 October
Partly cloudy. High 58°, low 54°.
0.01Katama, Wednesday, 21 October
Light rain. High 54°, low 52°.
0Katama, Thursday, 22 October
Overcast. High 53°, low 51°.
0Katama, Friday, 23 October
Partly cloudy. High 53°, low 51°.
0Katama, Saturday, 24 October
Overcast. High 55°, low 53°.
0
Katama, Sunday, 25 October
Mostly clear. High 54°, low 51°.
0Katama, Monday, 26 October
Clear. High 58°, low 49°.
0.15Katama, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.18
Katama, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13Katama, Thursday, 29 October
Climate normal for this date — 60-year average.
0.17Katama, Friday, 30 October
Climate normal for this date — 60-year average.
0.11Katama, Saturday, 31 October
Climate normal for this date — 60-year average.
0.14Katama, Sunday, 1 November
Climate normal for this date — 60-year average.
0.14Katama, Monday, 2 November
Climate normal for this date — 60-year average.
0.22Katama, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Katama, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Katama, Thursday, 5 November
Climate normal for this date — 60-year average.
0.15Katama, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Katama, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Katama, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Katama, Monday, 9 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 Katama, MA 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 Katama, MA 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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