Weather in Lake Arrowhead, CA
Lake Arrowhead, Sunday, 18 October, 01:33
Clear. Feels like 48°. High 67°, low 48°.
Monthly outlook for Lake Arrowhead, CA: average high 65.7°, average low 49.8°. That is 5.8° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 26 October (70.1°), the coolest 23 October (44°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 65.1° | 77.5° | -6.9° |
| 28 October – 6 November | 66.6° | 74° | -4.1° |
| 7 November – 16 November | at normal | 70° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — San Bernardino (10 mi).
0
Lake Arrowhead, Monday, 19 October
Clear. High 68°, low 51°.
0Lake Arrowhead, Tuesday, 20 October
Clear. High 68°, low 53°.
0.05
Lake Arrowhead, Wednesday, 21 October
Light rain. High 61°, low 48°.
0.53Lake Arrowhead, Thursday, 22 October
Rain. High 56°, low 45°.
0Lake Arrowhead, Friday, 23 October
Clear. High 62°, low 44°.
0Lake Arrowhead, Saturday, 24 October
Clear. High 64°, low 47°.
0Lake Arrowhead, Sunday, 25 October
Clear. High 68°, low 51°.
0Lake Arrowhead, Monday, 26 October
Clear. High 70°, low 52°.
0
Lake Arrowhead, Tuesday, 27 October
Overcast. High 67°, low 53°.
0Lake Arrowhead, Wednesday, 28 October
Overcast. High 66°, low 51°.
0Lake Arrowhead, Thursday, 29 October
Clear. High 68°, low 50°.
0Lake Arrowhead, Friday, 30 October
Clear. High 68°, low 51°.
0Lake Arrowhead, Saturday, 31 October
Clear. High 68°, low 51°.
0Lake Arrowhead, Sunday, 1 November
Overcast. High 65°, low 50°.
0Lake Arrowhead, Monday, 2 November
Overcast. High 64°, low 51°.
0.01
Lake Arrowhead, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Lake Arrowhead, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.01Lake Arrowhead, Thursday, 5 November
Climate normal for this date — 60-year average.
0.01Lake Arrowhead, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Lake Arrowhead, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Lake Arrowhead, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Lake Arrowhead, Monday, 9 November
Climate normal for this date — 60-year average.
0.02Lake Arrowhead, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Lake Arrowhead, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Lake Arrowhead, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Lake Arrowhead, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Lake Arrowhead, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Lake Arrowhead, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Lake Arrowhead, 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 Lake Arrowhead, 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 Lake Arrowhead, 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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