Fern Valley, Saturday, 8 August, 22:45
Clear. Feels like 69°. High 79°, low 52°.
Fern Valley, Sunday, 9 August
Light rain. High 83°, low 59°.
Fern Valley, Monday, 10 August
Light rain. High 86°, low 60°.
Fern Valley, Tuesday, 11 August
Light rain. High 79°, low 64°.
Fern Valley, Wednesday, 12 August
Clear. High 80°, low 61°.
Fern Valley, Thursday, 13 August
Overcast. High 74°, low 58°.
Fern Valley, Friday, 14 August
Overcast. High 74°, low 56°.
Fern Valley, Saturday, 15 August
Mostly clear. High 82°, low 57°.
Fern Valley, Sunday, 16 August
Overcast. High 82°, low 61°.
Fern Valley, Monday, 17 August
Clear. High 85°, low 64°.
Fern Valley, Tuesday, 18 August
Partly cloudy. High 86°, low 66°.
Fern Valley, Wednesday, 19 August
Mostly clear. High 85°, low 63°.
Fern Valley, Thursday, 20 August
Partly cloudy. High 83°, low 62°.
Fern Valley, Friday, 21 August
Partly cloudy. High 81°, low 59°.
Fern Valley, Saturday, 22 August
Overcast. High 81°, low 57°.
Fern Valley, Sunday, 23 August
Clear. High 81°, low 58°.
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 Fern Valley, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Fern Valley, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.