Weather in Sunnyvale, TX
Sunnyvale, Friday, 23 October, 19:58
Clear. Feels like 72°. High 84°, low 55°.
Monthly outlook for Sunnyvale, TX: average high 77.8°, average low 60.4°. That is 3.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 2.3 inches. The warmest day looks like 23 October (84.2°), the coolest 5 November (52.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 79.7° | 72.4° | +4.1° |
| 2 November – 11 November | 74.7° | 68.4° | +3.5° |
| 12 November – 21 November | at normal | 65.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mesquite (3 mi).
0
Sunnyvale, Saturday, 24 October
Mostly clear. High 84°, low 55°.
0
Sunnyvale, Sunday, 25 October
Overcast. High 77°, low 57°.
0
Sunnyvale, Monday, 26 October
Partly cloudy. High 78°, low 60°.
0Sunnyvale, Tuesday, 27 October
Partly cloudy. High 79°, low 63°.
0
Sunnyvale, Wednesday, 28 October
Clear. High 83°, low 62°.
0Sunnyvale, Thursday, 29 October
Overcast. High 82°, low 64°.
0.31
Sunnyvale, Friday, 30 October
Rain. High 72°, low 64°.
0.16Sunnyvale, Saturday, 31 October
Light rain. High 78°, low 65°.
0.06Sunnyvale, Sunday, 1 November
Light rain. High 80°, low 69°.
0.53Sunnyvale, Monday, 2 November
Rain. High 76°, low 63°.
0Sunnyvale, Tuesday, 3 November
Mostly clear. High 77°, low 59°.
0Sunnyvale, Wednesday, 4 November
Partly cloudy. High 67°, low 55°.
0Sunnyvale, Thursday, 5 November
Mostly clear. High 68°, low 52°.
0Sunnyvale, Friday, 6 November
Partly cloudy. High 77°, low 59°.
0Sunnyvale, Saturday, 7 November
Mostly clear. High 83°, low 64°.
0.15Sunnyvale, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Sunnyvale, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Sunnyvale, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Sunnyvale, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Sunnyvale, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Sunnyvale, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Sunnyvale, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Sunnyvale, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Sunnyvale, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.13Sunnyvale, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Sunnyvale, Saturday, 21 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 Sunnyvale, 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 Sunnyvale, 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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