Weather in Yankton, SD
Yankton, Friday, 16 October, 10:33
Partly cloudy. Feels like 35°. High 50°, low 39°.
Monthly outlook for Yankton, SD: average high 58.3°, average low 44.2°. That is 0.1° above the climate normal for October. Precipitation is expected on 6 days (about 5.2 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 October (71.1°), the coolest 27 October (33.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 63.3° | 59.7° | +2° |
| 26 October – 4 November | 50.1° | 54.1° | -2.2° |
| 5 November – 14 November | at normal | 48.6° | — |
October records over 66 years
0
Yankton, Saturday, 17 October
Clear. High 61°, low 37°.
0Yankton, Sunday, 18 October
Clear. High 66°, low 44°.
0
Yankton, Monday, 19 October
Overcast. High 63°, low 45°.
0Yankton, Tuesday, 20 October
Clear. High 67°, low 47°.
0Yankton, Wednesday, 21 October
Clear. High 71°, low 52°.
0Yankton, Thursday, 22 October
Clear. High 69°, low 53°.
0.15
Yankton, Friday, 23 October
Light rain. High 69°, low 50°.
0.03Yankton, Saturday, 24 October
Light rain. High 64°, low 56°.
2.99Yankton, Sunday, 25 October
Heavy rain. High 53°, low 41°.
0.28Yankton, Monday, 26 October
Rain. High 41°, low 37°.
0.12Yankton, Tuesday, 27 October
Light rain. High 45°, low 33°.
1.11Yankton, Wednesday, 28 October
Heavy rain. High 59°, low 43°.
0Yankton, Thursday, 29 October
Partly cloudy. High 56°, low 44°.
0Yankton, Friday, 30 October
Overcast. High 54°, low 42°.
0.54Yankton, Saturday, 31 October
Rain. High 47°, low 45°.
0.06
Yankton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Yankton, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Yankton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Yankton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Yankton, Thursday, 5 November
Climate normal for this date — 60-year average.
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.
0.12Yankton, 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.
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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