Weather in Glendora, CA
Glendora, Saturday, 8 August, 15:38
Clear. Feels like 102°. High 100°, low 68°.
Monthly outlook for Glendora, CA: average high 93.5°, average low 73.7°. That is 2.3° 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 (99.5°), the coolest 8 August (67.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 93.1° | 89.8° | +1.8° |
| 18 August – 27 August | 94.1° | 89.5° | +2.5° |
| 28 August – 6 September | at normal | 91.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Covina (4 mi).
0Glendora, Sunday, 9 August
Clear. High 97°, low 71°.
0
Glendora, Monday, 10 August
Overcast. High 95°, low 71°.
0Glendora, Tuesday, 11 August
Overcast. High 93°, low 75°.
0Glendora, Wednesday, 12 August
Overcast. High 90°, low 72°.
0
Glendora, Thursday, 13 August
Partly cloudy. High 88°, low 69°.
0Glendora, Friday, 14 August
Overcast. High 87°, low 69°.
0Glendora, Saturday, 15 August
Partly cloudy. High 93°, low 71°.
0
Glendora, Sunday, 16 August
Mostly clear. High 94°, low 75°.
0Glendora, Monday, 17 August
Mostly clear. High 94°, low 75°.
0Glendora, Tuesday, 18 August
Clear. High 97°, low 78°.
0Glendora, Wednesday, 19 August
Mostly clear. High 96°, low 78°.
0Glendora, Thursday, 20 August
Partly cloudy. High 95°, low 77°.
0Glendora, Friday, 21 August
Overcast. High 94°, low 77°.
0Glendora, Saturday, 22 August
Overcast. High 91°, low 76°.
0Glendora, Sunday, 23 August
Clear. High 92°, low 76°.
0Glendora, Monday, 24 August
Climate normal for this date — 60-year average.
0Glendora, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Glendora, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Glendora, Thursday, 27 August
Climate normal for this date — 60-year average.
0Glendora, Friday, 28 August
Climate normal for this date — 60-year average.
0Glendora, Saturday, 29 August
Climate normal for this date — 60-year average.
0Glendora, Sunday, 30 August
Climate normal for this date — 60-year average.
0Glendora, Monday, 31 August
Climate normal for this date — 60-year average.
0.03Glendora, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Glendora, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.01Glendora, Thursday, 3 September
Climate normal for this date — 60-year average.
0Glendora, Friday, 4 September
Climate normal for this date — 60-year average.
0.01Glendora, Saturday, 5 September
Climate normal for this date — 60-year average.
0.01Glendora, 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 Glendora, 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 Glendora, 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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