Weather in San Leon, TX
San Leon, Friday, 9 October, 17:17
Clear. Feels like 90°. High 90°, low 76°.
Monthly outlook for San Leon, TX: average high 80.4°, average low 71.9°. That is 1.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 9 October (90.1°), the coolest 18 October (58.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 83.1° | 78.9° | +2.3° |
| 19 October – 28 October | 75.9° | 76.2° | -0.2° |
| 29 October – 7 November | at normal | 73.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Texas City (6 mi).
0
San Leon, Saturday, 10 October
Mostly clear. High 89°, low 77°.
0
San Leon, Sunday, 11 October
Overcast. High 84°, low 79°.
0.01
San Leon, Monday, 12 October
Light rain. High 85°, low 81°.
0.12San Leon, Tuesday, 13 October
Light rain. High 85°, low 82°.
0.02San Leon, Wednesday, 14 October
Light rain. High 85°, low 81°.
0San Leon, Thursday, 15 October
Clear. High 85°, low 79°.
0.01San Leon, Friday, 16 October
Light rain. High 83°, low 78°.
0San Leon, Saturday, 17 October
Overcast. High 77°, low 67°.
0San Leon, Sunday, 18 October
Overcast. High 69°, low 59°.
0
San Leon, Monday, 19 October
Partly cloudy. High 71°, low 59°.
0San Leon, Tuesday, 20 October
Overcast. High 77°, low 62°.
0San Leon, Wednesday, 21 October
Clear. High 77°, low 65°.
0San Leon, Thursday, 22 October
Clear. High 75°, low 66°.
0San Leon, Friday, 23 October
Clear. High 77°, low 67°.
0San Leon, Saturday, 24 October
Overcast. High 78°, low 72°.
0.34San Leon, Sunday, 25 October
Climate normal for this date — 60-year average.
0.2San Leon, Monday, 26 October
Climate normal for this date — 60-year average.
0.11San Leon, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17San Leon, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13San Leon, Thursday, 29 October
Climate normal for this date — 60-year average.
0.2
San Leon, Friday, 30 October
Climate normal for this date — 60-year average.
0.15San Leon, Saturday, 31 October
Climate normal for this date — 60-year average.
0.22San Leon, Sunday, 1 November
Climate normal for this date — 60-year average.
0.2San Leon, Monday, 2 November
Climate normal for this date — 60-year average.
0.07San Leon, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07San Leon, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1San Leon, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11San Leon, Friday, 6 November
Climate normal for this date — 60-year average.
0.11San Leon, Saturday, 7 November
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 Leon, 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 Leon, 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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