Weather in Marietta, SD
Marietta, Wednesday, 21 October, 17:45
Partly cloudy. Feels like 65°. High 70°, low 45°.
Monthly outlook for Marietta, SD: average high 58.6°, average low 43.1°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (77.4°), the coolest 28 October (30.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59.3° | 57.4° | +1.1° |
| 31 October – 9 November | 57.3° | 51.3° | +3.4° |
| 10 November – 19 November | at normal | 47.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dudley (8 mi).
0
Marietta, Thursday, 22 October
Clear. High 77°, low 52°.
0
Marietta, Friday, 23 October
Overcast. High 77°, low 57°.
0Marietta, Saturday, 24 October
Overcast. High 56°, low 42°.
0.08
Marietta, Sunday, 25 October
Light rain. High 44°, low 40°.
0.01Marietta, Monday, 26 October
Light rain. High 50°, low 37°.
0Marietta, Tuesday, 27 October
Overcast. High 45°, low 34°.
0Marietta, Wednesday, 28 October
Clear. High 51°, low 30°.
0Marietta, Thursday, 29 October
Overcast. High 58°, low 34°.
0Marietta, Friday, 30 October
Clear. High 65°, low 42°.
0Marietta, Saturday, 31 October
Overcast. High 62°, low 45°.
0.29Marietta, Sunday, 1 November
Light rain. High 51°, low 49°.
0.13Marietta, Monday, 2 November
Light rain. High 51°, low 49°.
0.08Marietta, Tuesday, 3 November
Light rain. High 56°, low 45°.
0Marietta, Wednesday, 4 November
Clear. High 60°, low 43°.
0Marietta, Thursday, 5 November
Clear. High 63°, low 46°.
0.03
Marietta, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Marietta, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Marietta, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Marietta, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Marietta, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Marietta, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Marietta, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Marietta, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Marietta, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Marietta, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Marietta, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Marietta, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.02Marietta, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.02Marietta, 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 Marietta, 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 Marietta, 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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