Weather in Mount Vernon, WI
Mount Vernon, Sunday, 15 November, 00:30
Clear. Feels like 25°. High 48°, low 28°.
Monthly outlook for Mount Vernon, WI: average high 45.2°, average low 30.8°. That is 2.7° above the climate normal for November. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 21 November (59.5°), the coolest 24 November (20.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 48.1° | 42° | +3.4° |
| 25 November – 4 December | 40.2° | 36.4° | +2.1° |
| 5 December – 14 December | at normal | 31.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Mount Horeb (6 mi).
0
Mount Vernon, Monday, 16 November
Overcast. High 48°, low 28°.
0
Mount Vernon, Tuesday, 17 November
Clear. High 52°, low 33°.
0Mount Vernon, Wednesday, 18 November
Overcast. High 53°, low 38°.
0Mount Vernon, Thursday, 19 November
Overcast. High 55°, low 40°.
0.11
Mount Vernon, Friday, 20 November
Light rain. High 51°, low 33°.
0.08Mount Vernon, Saturday, 21 November
Light rain. High 59°, low 52°.
0.26
Mount Vernon, Sunday, 22 November
Snow. High 51°, low 26°.
0Mount Vernon, Monday, 23 November
Overcast. High 30°, low 22°.
0Mount Vernon, Tuesday, 24 November
Clear. High 35°, low 21°.
0Mount Vernon, Wednesday, 25 November
Overcast. High 36°, low 22°.
0Mount Vernon, Thursday, 26 November
Overcast. High 40°, low 25°.
0.61Mount Vernon, Friday, 27 November
Rain. High 46°, low 31°.
0.32Mount Vernon, Saturday, 28 November
Snow. High 45°, low 34°.
0.02Mount Vernon, Sunday, 29 November
Light snow. High 35°, low 31°.
0Mount Vernon, Monday, 30 November
Overcast. High 39°, low 28°.
0.09
Mount Vernon, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04
Mount Vernon, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Mount Vernon, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Mount Vernon, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Mount Vernon, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04Mount Vernon, Sunday, 6 December
Climate normal for this date — 60-year average.
0.08Mount Vernon, Monday, 7 December
Climate normal for this date — 60-year average.
0.05Mount Vernon, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Mount Vernon, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Mount Vernon, Thursday, 10 December
Climate normal for this date — 60-year average.
0.08Mount Vernon, Friday, 11 December
Climate normal for this date — 60-year average.
0.05
Mount Vernon, Saturday, 12 December
Climate normal for this date — 60-year average.
0.04Mount Vernon, Sunday, 13 December
Climate normal for this date — 60-year average.
0.09Mount Vernon, Monday, 14 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 Mount Vernon, WI 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, WI 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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