Weather in Mount Vernon, SD
Mount Vernon, Monday, 26 October, 00:10
Overcast. Feels like 36°. High 43°, low 39°.
Monthly outlook for Mount Vernon, SD: average high 58.9°, average low 45.1°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 6 November (71°), the coolest 8 November (35.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 58.5° | 52.6° | +3.3° |
| 5 November – 14 November | 59.6° | 46.9° | +7° |
| 15 November – 24 November | at normal | 42.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stickney (12 mi).
0.01
Mount Vernon, Tuesday, 27 October
Light rain. High 57°, low 39°.
0.02Mount Vernon, Wednesday, 28 October
Light rain. High 65°, low 48°.
0Mount Vernon, Thursday, 29 October
Overcast. High 62°, low 42°.
0.05Mount Vernon, Friday, 30 October
Light rain. High 64°, low 52°.
0.24Mount Vernon, Saturday, 31 October
Light rain. High 59°, low 51°.
0
Mount Vernon, Sunday, 1 November
Partly cloudy. High 65°, low 49°.
0Mount Vernon, Monday, 2 November
Overcast. High 65°, low 48°.
0Mount Vernon, Tuesday, 3 November
Overcast. High 55°, low 43°.
0.11Mount Vernon, Wednesday, 4 November
Light rain. High 51°, low 44°.
0.03Mount Vernon, Thursday, 5 November
Light rain. High 56°, low 45°.
0Mount Vernon, Friday, 6 November
Partly cloudy. High 71°, low 52°.
0.02Mount Vernon, Saturday, 7 November
Light rain. High 57°, low 46°.
0
Mount Vernon, Sunday, 8 November
Clear. High 48°, low 35°.
0Mount Vernon, Monday, 9 November
Overcast. High 69°, low 42°.
0Mount Vernon, Tuesday, 10 November
Overcast. High 56°, low 45°.
0.04
Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Mount Vernon, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Mount Vernon, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Mount Vernon, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Mount Vernon, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Mount Vernon, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Mount Vernon, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Mount Vernon, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Mount Vernon, Thursday, 19 November
Climate normal for this date — 60-year average.
0.04Mount Vernon, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Mount Vernon, Saturday, 21 November
Climate normal for this date — 60-year average.
0.02Mount Vernon, Sunday, 22 November
Climate normal for this date — 60-year average.
0.02Mount Vernon, Monday, 23 November
Climate normal for this date — 60-year average.
0.03Mount Vernon, Tuesday, 24 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, SD 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, SD 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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