Weather in Lake Forest, CA
Lake Forest, Tuesday, 20 October, 09:34
Clear. Feels like 69°. High 80°, low 61°.
Monthly outlook for Lake Forest, CA: average high 75.4°, average low 61.7°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 1.6 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 26 October (84.6°), the coolest 23 October (51.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 77.1° | 73.6° | +2° |
| 30 October – 8 November | 72.6° | 71.5° | +0.6° |
| 9 November – 18 November | at normal | 69.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mission Viejo (4 mi).
0.21
Lake Forest, Wednesday, 21 October
Rain. High 77°, low 56°.
1.37Lake Forest, Thursday, 22 October
Heavy rain. High 67°, low 57°.
0
Lake Forest, Friday, 23 October
Mostly clear. High 67°, low 51°.
0Lake Forest, Saturday, 24 October
Clear. High 77°, low 57°.
0Lake Forest, Sunday, 25 October
Clear. High 78°, low 60°.
0
Lake Forest, Monday, 26 October
Overcast. High 85°, low 66°.
0Lake Forest, Tuesday, 27 October
Overcast. High 84°, low 72°.
0Lake Forest, Wednesday, 28 October
Overcast. High 81°, low 69°.
0Lake Forest, Thursday, 29 October
Overcast. High 76°, low 65°.
0Lake Forest, Friday, 30 October
Clear. High 75°, low 63°.
0Lake Forest, Saturday, 31 October
Overcast. High 77°, low 64°.
0.03Lake Forest, Sunday, 1 November
Light rain. High 71°, low 64°.
0.01Lake Forest, Monday, 2 November
Light rain. High 69°, low 62°.
0Lake Forest, Tuesday, 3 November
Overcast. High 70°, low 60°.
0Lake Forest, Wednesday, 4 November
Overcast. High 73°, low 62°.
0.01Lake Forest, Thursday, 5 November
Climate normal for this date — 60-year average.
0.01Lake Forest, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Lake Forest, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08
Lake Forest, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Lake Forest, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Lake Forest, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Lake Forest, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Lake Forest, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Lake Forest, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Lake Forest, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Lake Forest, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Lake Forest, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Lake Forest, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Lake Forest, Wednesday, 18 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 Forest, 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 Forest, 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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