Weather in Yankton, SD
Yankton, Wednesday, 21 October, 03:15
Clear. Feels like 46°. High 74°, low 48°.
Monthly outlook for Yankton, SD: average high 61.3°, average low 44.7°. That is 3.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (77.2°), the coolest 27 October (30.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 60.8° | 57.2° | +2° |
| 31 October – 9 November | 62° | 51.7° | +5.7° |
| 10 November – 19 November | at normal | 46.3° | — |
October records over 66 years
0
Yankton, Thursday, 22 October
Clear. High 77°, low 51°.
0.09
Yankton, Friday, 23 October
Rain. High 74°, low 57°.
0.15Yankton, Saturday, 24 October
Light rain. High 68°, low 53°.
0.1Yankton, Sunday, 25 October
Light rain. High 56°, low 50°.
0.93Yankton, Monday, 26 October
Rain. High 49°, low 37°.
0Yankton, Tuesday, 27 October
Clear. High 45°, low 31°.
0Yankton, Wednesday, 28 October
Clear. High 53°, low 34°.
0
Yankton, Thursday, 29 October
Overcast. High 54°, low 36°.
0.01Yankton, Friday, 30 October
Light rain. High 58°, low 38°.
0Yankton, Saturday, 31 October
Overcast. High 62°, low 52°.
0
Yankton, Sunday, 1 November
Mostly clear. High 63°, low 47°.
0Yankton, Monday, 2 November
Overcast. High 57°, low 45°.
0Yankton, Tuesday, 3 November
Overcast. High 65°, low 43°.
0Yankton, Wednesday, 4 November
Clear. High 67°, low 49°.
0Yankton, Thursday, 5 November
Overcast. High 59°, low 46°.
0.03Yankton, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Yankton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Yankton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12
Yankton, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Yankton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Yankton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Yankton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Yankton, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Yankton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Yankton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Yankton, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Yankton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Yankton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Yankton, Thursday, 19 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 Yankton, 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 Yankton, 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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