Weather in South Alamo, TX
South Alamo, Sunday, 9 August, 12:55
Partly cloudy. Feels like 108°. High 95°, low 79°.
Monthly outlook for South Alamo, TX: average high 101.2°, average low 79.8°. That is 2.7° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 23 August (105°), the coolest 10 August (77.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 100.1° | 96.8° | +1.8° |
| 19 August – 28 August | 103.1° | 95.4° | +4.3° |
| 29 August – 7 September | at normal | 93.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — McAllen (10 mi).
0
South Alamo, Monday, 10 August
Clear. High 101°, low 77°.
0South Alamo, Tuesday, 11 August
Clear. High 100°, low 78°.
0South Alamo, Wednesday, 12 August
Clear. High 99°, low 81°.
0South Alamo, Thursday, 13 August
Clear. High 100°, low 82°.
0South Alamo, Friday, 14 August
Partly cloudy. High 99°, low 83°.
0
South Alamo, Saturday, 15 August
Overcast. High 99°, low 83°.
0
South Alamo, Sunday, 16 August
Mostly clear. High 104°, low 80°.
0South Alamo, Monday, 17 August
Clear. High 102°, low 78°.
0South Alamo, Tuesday, 18 August
Clear. High 102°, low 79°.
0South Alamo, Wednesday, 19 August
Clear. High 103°, low 80°.
0South Alamo, Thursday, 20 August
Clear. High 103°, low 80°.
0South Alamo, Friday, 21 August
Clear. High 102°, low 80°.
0South Alamo, Saturday, 22 August
Clear. High 102°, low 80°.
0South Alamo, Sunday, 23 August
Clear. High 105°, low 79°.
0South Alamo, Monday, 24 August
Clear. High 104°, low 80°.
0.06
South Alamo, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07South Alamo, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.06South Alamo, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13South Alamo, Friday, 28 August
Climate normal for this date — 60-year average.
0.11South Alamo, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09South Alamo, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11South Alamo, Monday, 31 August
Climate normal for this date — 60-year average.
0.1South Alamo, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1South Alamo, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13South Alamo, Thursday, 3 September
Climate normal for this date — 60-year average.
0.15South Alamo, Friday, 4 September
Climate normal for this date — 60-year average.
0.11South Alamo, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1South Alamo, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08South Alamo, 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 South Alamo, TX 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 South Alamo, TX 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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