Weather in Mellette, SD
Mellette, Wednesday, 7 October, 08:17
Partly cloudy. Feels like 46°. High 75°, low 46°.
Monthly outlook for Mellette, SD: average high 61.9°, average low 45.3°. That is 1.5° above the climate normal for October. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (86.6°), the coolest 18 October (34.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 64.6° | 60.4° | +2.3° |
| 17 October – 26 October | 57.3° | 56.3° | +0.6° |
| 27 October – 5 November | at normal | 50.3° | — |
October records over 66 years
0Mellette, Thursday, 8 October
Partly cloudy. High 71°, low 42°.
0
Mellette, Friday, 9 October
Overcast. High 79°, low 50°.
0
Mellette, Saturday, 10 October
Clear. High 87°, low 68°.
0.01
Mellette, Sunday, 11 October
Light rain. High 70°, low 47°.
0.05Mellette, Monday, 12 October
Light rain. High 45°, low 39°.
0Mellette, Tuesday, 13 October
Partly cloudy. High 54°, low 37°.
0.76Mellette, Wednesday, 14 October
Rain. High 58°, low 48°.
0.99Mellette, Thursday, 15 October
Heavy rain. High 59°, low 49°.
0.32Mellette, Friday, 16 October
Light rain. High 47°, low 41°.
0.11Mellette, Saturday, 17 October
Light rain. High 41°, low 39°.
0Mellette, Sunday, 18 October
Clear. High 52°, low 35°.
0Mellette, Monday, 19 October
Clear. High 60°, low 40°.
0.01Mellette, Tuesday, 20 October
Light rain. High 68°, low 46°.
0.01Mellette, Wednesday, 21 October
Light rain. High 59°, low 50°.
0Mellette, Thursday, 22 October
Clear. High 64°, low 48°.
0.05
Mellette, Friday, 23 October
Climate normal for this date — 60-year average.
0.04Mellette, Saturday, 24 October
Climate normal for this date — 60-year average.
0.04Mellette, Sunday, 25 October
Climate normal for this date — 60-year average.
0.03Mellette, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Mellette, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.04Mellette, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08Mellette, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06Mellette, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Mellette, Saturday, 31 October
Climate normal for this date — 60-year average.
0.05Mellette, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Mellette, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Mellette, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Mellette, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Mellette, Thursday, 5 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 Mellette, 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 Mellette, 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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