Weather in Fontana, CA
Fontana, Saturday, 31 October, 23:41
Light rain. Feels like 59°. High 70°, low 56°.
Monthly outlook for Fontana, CA: average high 71.6°, average low 58.2°. That is 0.3° below the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 7 November (81.8°), the coolest 4 November (50°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 72.4° | 73.3° | -0.5° |
| 10 November – 19 November | 70.3° | 69.6° | +0.4° |
| 20 November – 29 November | at normal | 66.2° | — |
October records over 66 years
0.45Fontana, Sunday, 1 November
Rain. High 65°, low 52°.
0
Fontana, Monday, 2 November
Clear. High 68°, low 52°.
0
Fontana, Tuesday, 3 November
Overcast. High 67°, low 52°.
0Fontana, Wednesday, 4 November
Clear. High 68°, low 50°.
0Fontana, Thursday, 5 November
Clear. High 72°, low 54°.
0Fontana, Friday, 6 November
Clear. High 79°, low 55°.
0Fontana, Saturday, 7 November
Clear. High 82°, low 66°.
0Fontana, Sunday, 8 November
Overcast. High 79°, low 69°.
0
Fontana, Monday, 9 November
Partly cloudy. High 75°, low 65°.
0Fontana, Tuesday, 10 November
Overcast. High 75°, low 64°.
0Fontana, Wednesday, 11 November
Partly cloudy. High 73°, low 63°.
0Fontana, Thursday, 12 November
Partly cloudy. High 71°, low 61°.
0Fontana, Friday, 13 November
Clear. High 75°, low 62°.
0.39Fontana, Saturday, 14 November
Rain. High 69°, low 58°.
1.5Fontana, Sunday, 15 November
Heavy rain. High 58°, low 53°.
0.06
Fontana, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Fontana, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Fontana, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Fontana, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Fontana, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Fontana, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06Fontana, Sunday, 22 November
Climate normal for this date — 60-year average.
0.01Fontana, Monday, 23 November
Climate normal for this date — 60-year average.
0.04Fontana, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.07Fontana, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.08Fontana, Thursday, 26 November
Climate normal for this date — 60-year average.
0.05Fontana, Friday, 27 November
Climate normal for this date — 60-year average.
0.11Fontana, Saturday, 28 November
Climate normal for this date — 60-year average.
0.15Fontana, Sunday, 29 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 Fontana, 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 Fontana, 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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