Weather in San Tomas, CA
San Tomas, Saturday, 8 August, 23:47
Clear. Feels like 63°. High 89°, low 63°.
Monthly outlook for San Tomas, CA: average high 88.9°, average low 59.1°. That is 4.2° 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 11 August (99.6°), the coolest 24 August (55.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 89° | 81.8° | +4° |
| 19 August – 28 August | 88.7° | 81.2° | +4.2° |
| 29 August – 7 September | at normal | 82.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Campbell (1 mi).
0
San Tomas, Monday, 10 August
Mostly clear. High 93°, low 65°.
0
San Tomas, Tuesday, 11 August
Clear. High 100°, low 62°.
0San Tomas, Wednesday, 12 August
Clear. High 91°, low 59°.
0San Tomas, Thursday, 13 August
Clear. High 81°, low 57°.
0San Tomas, Friday, 14 August
Clear. High 87°, low 56°.
0
San Tomas, Saturday, 15 August
Partly cloudy. High 90°, low 57°.
0
San Tomas, Sunday, 16 August
Overcast. High 87°, low 59°.
0San Tomas, Monday, 17 August
Overcast. High 85°, low 56°.
0San Tomas, Tuesday, 18 August
Clear. High 86°, low 58°.
0San Tomas, Wednesday, 19 August
Clear. High 85°, low 64°.
0San Tomas, Thursday, 20 August
Overcast. High 84°, low 61°.
0San Tomas, Friday, 21 August
Overcast. High 88°, low 57°.
0San Tomas, Saturday, 22 August
Mostly clear. High 90°, low 56°.
0San Tomas, Sunday, 23 August
Clear. High 93°, low 57°.
0San Tomas, Monday, 24 August
Clear. High 92°, low 55°.
0San Tomas, Tuesday, 25 August
Climate normal for this date — 60-year average.
0San Tomas, Wednesday, 26 August
Climate normal for this date — 60-year average.
0San Tomas, Thursday, 27 August
Climate normal for this date — 60-year average.
0San Tomas, Friday, 28 August
Climate normal for this date — 60-year average.
0San Tomas, Saturday, 29 August
Climate normal for this date — 60-year average.
0San Tomas, Sunday, 30 August
Climate normal for this date — 60-year average.
0San Tomas, Monday, 31 August
Climate normal for this date — 60-year average.
0San Tomas, Tuesday, 1 September
Climate normal for this date — 60-year average.
0San Tomas, Wednesday, 2 September
Climate normal for this date — 60-year average.
0San Tomas, Thursday, 3 September
Climate normal for this date — 60-year average.
0San Tomas, Friday, 4 September
Climate normal for this date — 60-year average.
0San Tomas, Saturday, 5 September
Climate normal for this date — 60-year average.
0San Tomas, Sunday, 6 September
Climate normal for this date — 60-year average.
0San Tomas, 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 San Tomas, 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 San Tomas, 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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