Weather in Shasta Lake, CA
Shasta Lake, Sunday, 9 August, 02:39
Clear. Feels like 71°. High 107°, low 68°.
Monthly outlook for Shasta Lake, CA: average high 94.9°, average low 64.2°. That is 0.7° below the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.2 inches. The warmest day looks like 9 August (106.8°), the coolest 22 August (57.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 95.5° | 97.4° | -1.1° |
| 19 August – 28 August | 93.8° | 94.1° | -0.2° |
| 29 August – 7 September | at normal | 94° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Redding (8 mi).
0
Shasta Lake, Monday, 10 August
Clear. High 105°, low 67°.
0Shasta Lake, Tuesday, 11 August
Clear. High 104°, low 68°.
0Shasta Lake, Wednesday, 12 August
Clear. High 102°, low 68°.
0
Shasta Lake, Thursday, 13 August
Overcast. High 95°, low 66°.
0Shasta Lake, Friday, 14 August
Clear. High 96°, low 64°.
0Shasta Lake, Saturday, 15 August
Overcast. High 95°, low 64°.
0Shasta Lake, Sunday, 16 August
Overcast. High 85°, low 70°.
0Shasta Lake, Monday, 17 August
Overcast. High 84°, low 60°.
0Shasta Lake, Tuesday, 18 August
Overcast. High 81°, low 60°.
0Shasta Lake, Wednesday, 19 August
Clear. High 94°, low 67°.
0
Shasta Lake, Thursday, 20 August
Partly cloudy. High 92°, low 64°.
0
Shasta Lake, Friday, 21 August
Mostly clear. High 92°, low 63°.
0Shasta Lake, Saturday, 22 August
Overcast. High 92°, low 58°.
0Shasta Lake, Sunday, 23 August
Clear. High 97°, low 60°.
0Shasta Lake, Monday, 24 August
Partly cloudy. High 97°, low 62°.
0.01Shasta Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Shasta Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Shasta Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
0.01Shasta Lake, Friday, 28 August
Climate normal for this date — 60-year average.
0Shasta Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
0Shasta Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
0.02Shasta Lake, Monday, 31 August
Climate normal for this date — 60-year average.
0.03Shasta Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.03Shasta Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
0Shasta Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
0Shasta Lake, Friday, 4 September
Climate normal for this date — 60-year average.
0Shasta Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Shasta Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
0.03Shasta 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 Shasta 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 Shasta 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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