Weather in Mount Vernon, TN
Mount Vernon, Saturday, 31 October, 04:19
Clear. Feels like 56°. High 78°, low 55°.
Monthly outlook for Mount Vernon, TN: average high 66.7°, average low 54°. That is 3.8° above the climate normal for October. Precipitation is expected on 5 days (about 4.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 31 October (78.1°), the coolest 12 November (41.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 69.5° | 61.6° | +4.4° |
| 10 November – 19 November | 62.1° | 56.8° | +2.9° |
| 20 November – 29 November | at normal | 53.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Portland (10 mi).
0.69
Mount Vernon, Sunday, 1 November
Heavy rain. High 61°, low 50°.
0
Mount Vernon, Monday, 2 November
Overcast. High 73°, low 56°.
0Mount Vernon, Tuesday, 3 November
Overcast. High 71°, low 59°.
1.32Mount Vernon, Wednesday, 4 November
Rain. High 67°, low 63°.
1.09Mount Vernon, Thursday, 5 November
Rain. High 68°, low 61°.
0.01Mount Vernon, Friday, 6 November
Light rain. High 69°, low 60°.
0Mount Vernon, Saturday, 7 November
Overcast. High 73°, low 60°.
0Mount Vernon, Sunday, 8 November
Overcast. High 67°, low 59°.
0.48Mount Vernon, Monday, 9 November
Rain. High 67°, low 60°.
0.65Mount Vernon, Tuesday, 10 November
Heavy rain. High 60°, low 52°.
0
Mount Vernon, Wednesday, 11 November
Clear. High 60°, low 46°.
0Mount Vernon, Thursday, 12 November
Overcast. High 61°, low 42°.
0Mount Vernon, Friday, 13 November
Overcast. High 63°, low 48°.
0Mount Vernon, Saturday, 14 November
Clear. High 64°, low 49°.
0Mount Vernon, Sunday, 15 November
Clear. High 64°, low 44°.
0.15
Mount Vernon, Monday, 16 November
Climate normal for this date — 60-year average.
0.13
Mount 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.
0.1Mount Vernon, Sunday, 22 November
Climate normal for this date — 60-year average.
0.15Mount Vernon, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Mount Vernon, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Mount Vernon, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Mount Vernon, Thursday, 26 November
Climate normal for this date — 60-year average.
0.32Mount Vernon, Friday, 27 November
Climate normal for this date — 60-year average.
0.25Mount Vernon, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Mount Vernon, Sunday, 29 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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