Weather in Rialto, CA
Rialto, Friday, 13 November, 05:46
Overcast. Feels like 59°. High 64°, low 56°.
Monthly outlook for Rialto, CA: average high 62.2°, average low 50.4°. That is 2.6° below the climate normal for November. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 24 November (68.3°), the coolest 18 November (41.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 59.4° | 67.7° | -4.6° |
| 23 November – 2 December | 66.7° | 64.6° | +1.2° |
| 3 December – 12 December | at normal | 62.8° | — |
November records over 66 years
0.42
Rialto, Saturday, 14 November
Rain. High 67°, low 50°.
0
Rialto, Sunday, 15 November
Partly cloudy. High 62°, low 46°.
0.08Rialto, Monday, 16 November
Light rain. High 60°, low 49°.
0.31Rialto, Tuesday, 17 November
Light rain. High 51°, low 43°.
0Rialto, Wednesday, 18 November
Overcast. High 54°, low 41°.
0.89Rialto, Thursday, 19 November
Heavy rain. High 55°, low 49°.
0.02Rialto, Friday, 20 November
Light rain. High 56°, low 46°.
0Rialto, Saturday, 21 November
Overcast. High 60°, low 47°.
0Rialto, Sunday, 22 November
Partly cloudy. High 65°, low 51°.
0Rialto, Monday, 23 November
Overcast. High 65°, low 54°.
0Rialto, Tuesday, 24 November
Overcast. High 68°, low 54°.
0Rialto, Wednesday, 25 November
Overcast. High 64°, low 55°.
0.03Rialto, Thursday, 26 November
Light rain. High 67°, low 54°.
0Rialto, Friday, 27 November
Partly cloudy. High 68°, low 55°.
0Rialto, Saturday, 28 November
Overcast. High 67°, low 56°.
0.14
Rialto, Sunday, 29 November
Climate normal for this date — 60-year average.
0.08Rialto, Monday, 30 November
Climate normal for this date — 60-year average.
0.02Rialto, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Rialto, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Rialto, Thursday, 3 December
Climate normal for this date — 60-year average.
0.1Rialto, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Rialto, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11Rialto, Sunday, 6 December
Climate normal for this date — 60-year average.
0.13Rialto, Monday, 7 December
Climate normal for this date — 60-year average.
0.05Rialto, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03Rialto, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.04Rialto, Thursday, 10 December
Climate normal for this date — 60-year average.
0.07Rialto, Friday, 11 December
Climate normal for this date — 60-year average.
0.07Rialto, Saturday, 12 December
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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