Weather in San Tan Valley, AZ
San Tan Valley, Sunday, 9 August, 12:45
Clear. Feels like 109°. High 119°, low 86°.
Monthly outlook for San Tan Valley, AZ: average high 103.2°, average low 82.8°. That is 0.7° above the climate normal for August. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 10 August (121.1°), the coolest 13 August (76.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 103.5° | 102.1° | +0.8° |
| 19 August – 28 August | 102.8° | 101.7° | +0.6° |
| 29 August – 7 September | at normal | 101.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Gilbert (14 mi).
0.01
San Tan Valley, Monday, 10 August
Light rain. High 121°, low 84°.
0.04San Tan Valley, Tuesday, 11 August
Light rain. High 103°, low 80°.
0.15San Tan Valley, Wednesday, 12 August
Rain. High 100°, low 82°.
0.23San Tan Valley, Thursday, 13 August
Light rain. High 94°, low 76°.
0.03San Tan Valley, Friday, 14 August
Light rain. High 96°, low 81°.
0
San Tan Valley, Saturday, 15 August
Overcast. High 97°, low 83°.
0San Tan Valley, Sunday, 16 August
Overcast. High 99°, low 83°.
0San Tan Valley, Monday, 17 August
Clear. High 101°, low 85°.
0San Tan Valley, Tuesday, 18 August
Clear. High 105°, low 88°.
0San Tan Valley, Wednesday, 19 August
Clear. High 103°, low 85°.
0.07San Tan Valley, Thursday, 20 August
Light rain. High 104°, low 87°.
0.72San Tan Valley, Friday, 21 August
Heavy rain. High 103°, low 76°.
0
San Tan Valley, Saturday, 22 August
Mostly clear. High 100°, low 80°.
0.05San Tan Valley, Sunday, 23 August
Light rain. High 105°, low 82°.
0San Tan Valley, Monday, 24 August
Overcast. High 101°, low 85°.
0.02
San Tan Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04San Tan Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.02San Tan Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02San Tan Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0.03San Tan Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0.03San Tan Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0.03San Tan Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0.04San Tan Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.05San Tan Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0San Tan Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06San Tan Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.06San Tan Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06San Tan Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
0.03San Tan Valley, 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 Tan Valley, AZ 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 Tan Valley, AZ 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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