Weather in Rialto, CA
Rialto, Saturday, 24 October, 03:35
Clear. Feels like 55°. High 74°, low 55°.
Monthly outlook for Rialto, CA: average high 74°, average low 59.8°. That is 0.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 8 November (83.6°), the coolest 28 October (51.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 70.8° | 74.5° | -2.1° |
| 3 November – 12 November | 79.4° | 71.4° | +4.4° |
| 13 November – 22 November | at normal | 67.7° | — |
October records over 66 years
0
Rialto, Sunday, 25 October
Clear. High 77°, low 56°.
0Rialto, Monday, 26 October
Clear. High 70°, low 54°.
0Rialto, Tuesday, 27 October
Clear. High 69°, low 53°.
0
Rialto, Wednesday, 28 October
Partly cloudy. High 70°, low 52°.
0
Rialto, Thursday, 29 October
Overcast. High 64°, low 52°.
0Rialto, Friday, 30 October
Overcast. High 67°, low 60°.
0Rialto, Saturday, 31 October
Overcast. High 69°, low 58°.
0.02
Rialto, Sunday, 1 November
Light rain. High 75°, low 63°.
0.19Rialto, Monday, 2 November
Light rain. High 74°, low 64°.
0Rialto, Tuesday, 3 November
Clear. High 81°, low 64°.
0Rialto, Wednesday, 4 November
Partly cloudy. High 81°, low 65°.
0Rialto, Thursday, 5 November
Clear. High 80°, low 66°.
0Rialto, Friday, 6 November
Overcast. High 75°, low 65°.
0Rialto, Saturday, 7 November
Light rain. High 75°, low 65°.
0Rialto, Sunday, 8 November
Clear. High 84°, low 66°.
0.06
Rialto, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Rialto, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Rialto, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Rialto, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Rialto, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Rialto, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Rialto, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Rialto, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Rialto, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Rialto, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Rialto, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Rialto, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Rialto, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06Rialto, Sunday, 22 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 Rialto, 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 Rialto, 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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