Weather in Green Valley Lake, CA
Green Valley Lake, Sunday, 9 August, 16:17
Partly cloudy. Feels like 79°. High 80°, low 54°.
Monthly outlook for Green Valley Lake, CA: average high 82.3°, average low 60.3°. That is 4.9° below the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 23 August (91.3°), the coolest 14 August (52.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 78.5° | 91.5° | -7.2° |
| 19 August – 28 August | 88.6° | 91.5° | -1.6° |
| 29 August – 7 September | at normal | 92.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — San Bernardino (14 mi).
0
Green Valley Lake, Monday, 10 August
Clear. High 82°, low 60°.
0
Green Valley Lake, Tuesday, 11 August
Overcast. High 82°, low 58°.
0Green Valley Lake, Wednesday, 12 August
Clear. High 80°, low 59°.
0
Green Valley Lake, Thursday, 13 August
Mostly clear. High 73°, low 54°.
0Green Valley Lake, Friday, 14 August
Clear. High 76°, low 53°.
0Green Valley Lake, Saturday, 15 August
Overcast. High 71°, low 54°.
0Green Valley Lake, Sunday, 16 August
Clear. High 77°, low 53°.
0Green Valley Lake, Monday, 17 August
Clear. High 80°, low 56°.
0Green Valley Lake, Tuesday, 18 August
Clear. High 84°, low 60°.
0Green Valley Lake, Wednesday, 19 August
Partly cloudy. High 88°, low 65°.
0Green Valley Lake, Thursday, 20 August
Clear. High 87°, low 68°.
0.13
Green Valley Lake, Friday, 21 August
Light rain. High 86°, low 68°.
0Green Valley Lake, Saturday, 22 August
Overcast. High 90°, low 68°.
0Green Valley Lake, Sunday, 23 August
Clear. High 91°, low 68°.
0.01Green Valley Lake, Monday, 24 August
Light rain. High 89°, low 68°.
0.02Green Valley Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.02Green Valley Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Friday, 28 August
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
0.02Green Valley Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Monday, 31 August
Climate normal for this date — 60-year average.
0.02Green Valley Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Green Valley Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Green Valley Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Friday, 4 September
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
0.01Green Valley Lake, Monday, 7 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 Green Valley Lake, 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 Green Valley Lake, 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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