Weather in Island Mountain, CA
Island Mountain, Friday, 13 November, 19:12
Light rain. Feels like 50°. High 57°, low 48°.
Monthly outlook for Island Mountain, CA: average high 53.5°, average low 42.6°. That is 1.3° below the climate normal for November. Precipitation is expected on 12 days (about 11.3 inches), against a normal of 6 days and 3.6 inches. The warmest day looks like 21 November (59°), the coolest 17 November (31.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 54.2° | 56.5° | -1.3° |
| 23 November – 2 December | 52.5° | 54.2° | -0.9° |
| 3 December – 12 December | at normal | 52.6° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Mina (8 mi).
0
Island Mountain, Saturday, 14 November
Overcast. High 59°, low 47°.
1.4Island Mountain, Sunday, 15 November
Heavy rain. High 55°, low 45°.
0.18Island Mountain, Monday, 16 November
Rain. High 54°, low 39°.
0.18Island Mountain, Tuesday, 17 November
Rain. High 55°, low 32°.
1.68Island Mountain, Wednesday, 18 November
Heavy rain. High 49°, low 46°.
0.77Island Mountain, Thursday, 19 November
Rain. High 51°, low 42°.
0.01Island Mountain, Friday, 20 November
Light rain. High 53°, low 37°.
0Island Mountain, Saturday, 21 November
Overcast. High 59°, low 39°.
0.13Island Mountain, Sunday, 22 November
Light rain. High 49°, low 40°.
0.3Island Mountain, Monday, 23 November
Light rain. High 50°, low 47°.
0.39Island Mountain, Tuesday, 24 November
Rain. High 55°, low 50°.
4.21Island Mountain, Wednesday, 25 November
Heavy rain. High 52°, low 46°.
0.41Island Mountain, Thursday, 26 November
Rain. High 52°, low 42°.
0Island Mountain, Friday, 27 November
Overcast. High 55°, low 37°.
0.13Island Mountain, Saturday, 28 November
Light rain. High 50°, low 42°.
0.29
Island Mountain, Sunday, 29 November
Climate normal for this date — 60-year average.
0.23Island Mountain, Monday, 30 November
Climate normal for this date — 60-year average.
0.3Island Mountain, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.37Island Mountain, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.28Island Mountain, Thursday, 3 December
Climate normal for this date — 60-year average.
0.24Island Mountain, Friday, 4 December
Climate normal for this date — 60-year average.
0.23Island Mountain, Saturday, 5 December
Climate normal for this date — 60-year average.
0.3Island Mountain, Sunday, 6 December
Climate normal for this date — 60-year average.
0.26Island Mountain, Monday, 7 December
Climate normal for this date — 60-year average.
0.25
Island Mountain, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.19Island Mountain, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.34Island Mountain, Thursday, 10 December
Climate normal for this date — 60-year average.
0.3Island Mountain, Friday, 11 December
Climate normal for this date — 60-year average.
0.3Island Mountain, Saturday, 12 December
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 Island Mountain, CA 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 Island Mountain, CA 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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