Weather in Chula Vista, CA
Chula Vista, Tuesday, 20 October, 12:45
Mostly clear. Feels like 77°. High 78°, low 61°.
Monthly outlook for Chula Vista, CA: average high 76.8°, average low 65.5°. That is 2.8° above the climate normal for October. Precipitation is expected on 1 day (about 1.0 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 27 October (86.5°), the coolest 24 October (56.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 77.9° | 72.1° | +3.2° |
| 30 October – 8 November | 75° | 70.3° | +2.6° |
| 9 November – 18 November | at normal | 68.3° | — |
October records over 66 years
0
Chula Vista, Wednesday, 21 October
Clear. High 80°, low 59°.
0.96
Chula Vista, Thursday, 22 October
Heavy rain. High 69°, low 60°.
0.03Chula Vista, Friday, 23 October
Light rain. High 70°, low 57°.
0Chula Vista, Saturday, 24 October
Clear. High 73°, low 57°.
0Chula Vista, Sunday, 25 October
Clear. High 77°, low 58°.
0Chula Vista, Monday, 26 October
Mostly clear. High 86°, low 69°.
0
Chula Vista, Tuesday, 27 October
Overcast. High 86°, low 76°.
0Chula Vista, Wednesday, 28 October
Overcast. High 83°, low 73°.
0Chula Vista, Thursday, 29 October
Overcast. High 77°, low 70°.
0
Chula Vista, Friday, 30 October
Partly cloudy. High 78°, low 69°.
0Chula Vista, Saturday, 31 October
Overcast. High 79°, low 70°.
0Chula Vista, Sunday, 1 November
Overcast. High 74°, low 69°.
0Chula Vista, Monday, 2 November
Light rain. High 73°, low 67°.
0Chula Vista, Tuesday, 3 November
Overcast. High 74°, low 66°.
0Chula Vista, Wednesday, 4 November
Overcast. High 73°, low 67°.
0.01Chula Vista, Thursday, 5 November
Climate normal for this date — 60-year average.
0.01Chula Vista, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Chula Vista, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Chula Vista, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Chula Vista, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Chula Vista, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Chula Vista, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Chula Vista, Thursday, 12 November
Climate normal for this date — 60-year average.
0.01Chula Vista, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Chula Vista, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Chula Vista, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Chula Vista, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Chula Vista, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Chula Vista, 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 Chula Vista, 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 Chula Vista, 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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