Weather in Etiwanda, CA
Etiwanda, Saturday, 8 August, 15:51
Clear. Feels like 100°. High 100°, low 67°.
Monthly outlook for Etiwanda, CA: average high 95°, average low 75.1°. That is 2.7° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 8 August (100.2°), the coolest 8 August (67.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 94.2° | 90.7° | +1.9° |
| 18 August – 27 August | 96.2° | 90° | +3.5° |
| 28 August – 6 September | at normal | 91.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Rancho Cucamonga (2 mi).
0Etiwanda, Sunday, 9 August
Clear. High 98°, low 72°.
0
Etiwanda, Monday, 10 August
Partly cloudy. High 97°, low 72°.
0
Etiwanda, Tuesday, 11 August
Overcast. High 93°, low 76°.
0Etiwanda, Wednesday, 12 August
Overcast. High 91°, low 75°.
0Etiwanda, Thursday, 13 August
Partly cloudy. High 89°, low 71°.
0Etiwanda, Friday, 14 August
Overcast. High 88°, low 70°.
0
Etiwanda, Saturday, 15 August
Mostly clear. High 94°, low 73°.
0Etiwanda, Sunday, 16 August
Mostly clear. High 96°, low 76°.
0Etiwanda, Monday, 17 August
Mostly clear. High 96°, low 76°.
0Etiwanda, Tuesday, 18 August
Clear. High 98°, low 80°.
0Etiwanda, Wednesday, 19 August
Clear. High 99°, low 80°.
0Etiwanda, Thursday, 20 August
Partly cloudy. High 97°, low 80°.
0Etiwanda, Friday, 21 August
Overcast. High 96°, low 79°.
0.01
Etiwanda, Saturday, 22 August
Light rain. High 94°, low 78°.
0Etiwanda, Sunday, 23 August
Partly cloudy. High 94°, low 77°.
0Etiwanda, Monday, 24 August
Climate normal for this date — 60-year average.
0Etiwanda, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Etiwanda, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Etiwanda, Thursday, 27 August
Climate normal for this date — 60-year average.
0Etiwanda, Friday, 28 August
Climate normal for this date — 60-year average.
0Etiwanda, Saturday, 29 August
Climate normal for this date — 60-year average.
0Etiwanda, Sunday, 30 August
Climate normal for this date — 60-year average.
0Etiwanda, Monday, 31 August
Climate normal for this date — 60-year average.
0Etiwanda, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.02Etiwanda, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.01Etiwanda, Thursday, 3 September
Climate normal for this date — 60-year average.
0Etiwanda, Friday, 4 September
Climate normal for this date — 60-year average.
0.01Etiwanda, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Etiwanda, Sunday, 6 September
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 Etiwanda, 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 Etiwanda, 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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