Weather in Mill Valley, MA
Mill Valley, Sunday, 18 October, 13:02
Clear. Feels like 51°. High 54°, low 31°.
Monthly outlook for Mill Valley, MA: average high 59.9°, average low 39.4°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (72.5°), the coolest 28 October (30.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 56.8° | 58.1° | -0.7° |
| 28 October – 6 November | 65° | 54.7° | +5.7° |
| 7 November – 16 November | at normal | 49.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Granby (7 mi).
0
Mill Valley, Monday, 19 October
Partly cloudy. High 62°, low 35°.
0
Mill Valley, Tuesday, 20 October
Overcast. High 62°, low 42°.
0Mill Valley, Wednesday, 21 October
Clear. High 56°, low 38°.
0Mill Valley, Thursday, 22 October
Clear. High 59°, low 35°.
0Mill Valley, Friday, 23 October
Overcast. High 49°, low 35°.
0Mill Valley, Saturday, 24 October
Clear. High 54°, low 31°.
0.01
Mill Valley, Sunday, 25 October
Light rain. High 59°, low 33°.
0Mill Valley, Monday, 26 October
Clear. High 57°, low 41°.
0Mill Valley, Tuesday, 27 October
Overcast. High 55°, low 36°.
0Mill Valley, Wednesday, 28 October
Overcast. High 56°, low 30°.
0.43Mill Valley, Thursday, 29 October
Rain. High 61°, low 42°.
0.5Mill Valley, Friday, 30 October
Rain. High 73°, low 56°.
0Mill Valley, Saturday, 31 October
Overcast. High 70°, low 51°.
0.06Mill Valley, Sunday, 1 November
Light rain. High 71°, low 52°.
0Mill Valley, Monday, 2 November
Overcast. High 58°, low 43°.
0.13
Mill Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Mill Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Mill Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.13Mill Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Mill Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.12Mill Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Mill Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Mill Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Mill Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Mill Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.17Mill Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.12Mill Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Mill Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Mill Valley, 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 Mill Valley, 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 Mill Valley, 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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