Weather in San Juan, TX
San Juan, Wednesday, 11 November, 02:37
Overcast. Feels like 66°. High 69°, low 62°.
Monthly outlook for San Juan, TX: average high 73.3°, average low 62.3°. That is 2.5° below the climate normal for November. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 20 November (84.5°), the coolest 23 November (49.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 76.2° | 78.2° | -1.1° |
| 21 November – 30 November | 68.5° | 76.1° | -4.3° |
| 1 December – 10 December | at normal | 74.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — McAllen (6 mi).
0San Juan, Thursday, 12 November
Overcast. High 76°, low 60°.
0
San Juan, Friday, 13 November
Clear. High 77°, low 57°.
0.07
San Juan, Saturday, 14 November
Light rain. High 76°, low 63°.
0.07San Juan, Sunday, 15 November
Light rain. High 82°, low 69°.
0.06San Juan, Monday, 16 November
Light rain. High 77°, low 66°.
0.04San Juan, Tuesday, 17 November
Light rain. High 70°, low 65°.
0San Juan, Wednesday, 18 November
Light rain. High 75°, low 69°.
0.3San Juan, Thursday, 19 November
Rain. High 76°, low 73°.
0San Juan, Friday, 20 November
Overcast. High 84°, low 71°.
0San Juan, Saturday, 21 November
Overcast. High 73°, low 59°.
0
San Juan, Sunday, 22 November
Partly cloudy. High 69°, low 56°.
0San Juan, Monday, 23 November
Overcast. High 57°, low 49°.
0San Juan, Tuesday, 24 November
Overcast. High 63°, low 50°.
0.02San Juan, Wednesday, 25 November
Light rain. High 72°, low 61°.
0.01San Juan, Thursday, 26 November
Light rain. High 78°, low 65°.
0.06San Juan, Friday, 27 November
Climate normal for this date — 60-year average.
0.05San Juan, Saturday, 28 November
Climate normal for this date — 60-year average.
0.03
San Juan, Sunday, 29 November
Climate normal for this date — 60-year average.
0.02San Juan, Monday, 30 November
Climate normal for this date — 60-year average.
0.04San Juan, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07San Juan, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.06San Juan, Thursday, 3 December
Climate normal for this date — 60-year average.
0.03San Juan, Friday, 4 December
Climate normal for this date — 60-year average.
0.03San Juan, Saturday, 5 December
Climate normal for this date — 60-year average.
0.03San Juan, Sunday, 6 December
Climate normal for this date — 60-year average.
0.05San Juan, Monday, 7 December
Climate normal for this date — 60-year average.
0.04San Juan, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.06San Juan, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03San Juan, Thursday, 10 December
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 Juan, 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 San Juan, 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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