Weather in Sioux Falls, SD
Sioux Falls, Saturday, 17 October, 09:16
Clear. Feels like 31°. High 58°, low 33°.
Monthly outlook for Sioux Falls, SD: average high 63.4°, average low 45.3°. That is 4.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 23 October (75.6°), the coolest 17 October (33.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 65.7° | 57.7° | +4.4° |
| 27 October – 5 November | 59.6° | 51.9° | +4.3° |
| 6 November – 15 November | at normal | 46.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Worthing (15 mi).
0Sioux Falls, Sunday, 18 October
Clear. High 64°, low 44°.
0
Sioux Falls, Monday, 19 October
Overcast. High 60°, low 42°.
0Sioux Falls, Tuesday, 20 October
Clear. High 65°, low 47°.
0Sioux Falls, Wednesday, 21 October
Clear. High 69°, low 51°.
0Sioux Falls, Thursday, 22 October
Clear. High 71°, low 49°.
0.07
Sioux Falls, Friday, 23 October
Light rain. High 76°, low 58°.
0.02Sioux Falls, Saturday, 24 October
Light rain. High 71°, low 49°.
0Sioux Falls, Sunday, 25 October
Overcast. High 59°, low 47°.
0.24Sioux Falls, Monday, 26 October
Rain. High 64°, low 45°.
0.18Sioux Falls, Tuesday, 27 October
Rain. High 69°, low 53°.
0Sioux Falls, Wednesday, 28 October
Overcast. High 62°, low 47°.
0Sioux Falls, Thursday, 29 October
Overcast. High 58°, low 42°.
0.33Sioux Falls, Friday, 30 October
Rain. High 65°, low 47°.
0.03
Sioux Falls, Saturday, 31 October
Light snow. High 45°, low 35°.
0Sioux Falls, Sunday, 1 November
Overcast. High 58°, low 36°.
0.04
Sioux Falls, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Sioux Falls, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Sioux Falls, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05
Sioux Falls, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Sioux Falls, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Sioux Falls, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Sioux Falls, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Sioux Falls, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Sioux Falls, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Sioux Falls, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Sioux Falls, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Sioux Falls, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Sioux Falls, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Sioux Falls, Sunday, 15 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 Sioux Falls, 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 Sioux Falls, 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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