Weather in Mount Vernon, TN
Mount Vernon, Friday, 23 October, 02:27
Clear. Feels like 46°. High 73°, low 43°.
Monthly outlook for Mount Vernon, TN: average high 69.1°, average low 50.9°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 3.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (75.5°), the coolest 5 November (38.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 73.1° | 65° | +4.5° |
| 2 November – 11 November | 62.5° | 60.3° | +1.2° |
| 12 November – 21 November | at normal | 56.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Portland (10 mi).
0
Mount Vernon, Saturday, 24 October
Mostly clear. High 75°, low 44°.
0
Mount Vernon, Sunday, 25 October
Clear. High 74°, low 50°.
0
Mount Vernon, Monday, 26 October
Overcast. High 73°, low 51°.
0Mount Vernon, Tuesday, 27 October
Overcast. High 75°, low 50°.
0Mount Vernon, Wednesday, 28 October
Overcast. High 73°, low 54°.
0Mount Vernon, Thursday, 29 October
Overcast. High 72°, low 52°.
0Mount Vernon, Friday, 30 October
Overcast. High 75°, low 56°.
0.15
Mount Vernon, Saturday, 31 October
Light rain. High 72°, low 60°.
2.44Mount Vernon, Sunday, 1 November
Heavy rain. High 67°, low 62°.
0.96Mount Vernon, Monday, 2 November
Rain. High 66°, low 62°.
0.17Mount Vernon, Tuesday, 3 November
Light rain. High 66°, low 59°.
0.15Mount Vernon, Wednesday, 4 November
Light rain. High 59°, low 46°.
0Mount Vernon, Thursday, 5 November
Clear. High 56°, low 39°.
0Mount Vernon, Friday, 6 November
Clear. High 63°, low 40°.
0Mount Vernon, Saturday, 7 November
Clear. High 66°, low 46°.
0.07Mount Vernon, Sunday, 8 November
Climate normal for this date — 60-year average.
0.16
Mount Vernon, Monday, 9 November
Climate normal for this date — 60-year average.
0.13
Mount Vernon, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Mount Vernon, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Mount Vernon, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Mount Vernon, Saturday, 14 November
Climate normal for this date — 60-year average.
0.16Mount Vernon, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Mount Vernon, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Mount Vernon, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Mount Vernon, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.14Mount Vernon, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Mount Vernon, Friday, 20 November
Climate normal for this date — 60-year average.
0.13Mount Vernon, 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 Mount Vernon, TN 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 Mount Vernon, TN 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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