Weather in Marietta, SD
Marietta, Sunday, 18 October, 16:55
Partly cloudy. Feels like 64°. High 67°, low 48°.
Monthly outlook for Marietta, SD: average high 63.3°, average low 43.6°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 28 October (75.1°), the coolest 2 November (27.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 66.2° | 59.4° | +3.8° |
| 28 October – 6 November | 58.4° | 52.8° | +3.1° |
| 7 November – 16 November | at normal | 48.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dudley (8 mi).
0
Marietta, Monday, 19 October
Clear. High 63°, low 44°.
0Marietta, Tuesday, 20 October
Clear. High 73°, low 45°.
0Marietta, Wednesday, 21 October
Clear. High 69°, low 46°.
0
Marietta, Thursday, 22 October
Overcast. High 73°, low 55°.
0Marietta, Friday, 23 October
Overcast. High 72°, low 53°.
0Marietta, Saturday, 24 October
Overcast. High 55°, low 43°.
0Marietta, Sunday, 25 October
Clear. High 67°, low 41°.
0Marietta, Monday, 26 October
Partly cloudy. High 61°, low 47°.
0Marietta, Tuesday, 27 October
Overcast. High 62°, low 46°.
0Marietta, Wednesday, 28 October
Partly cloudy. High 75°, low 49°.
0Marietta, Thursday, 29 October
Overcast. High 61°, low 44°.
0Marietta, Friday, 30 October
Clear. High 63°, low 35°.
0.52
Marietta, Saturday, 31 October
Rain. High 58°, low 45°.
0.33
Marietta, Sunday, 1 November
Snow. High 49°, low 29°.
0
Marietta, Monday, 2 November
Mostly clear. High 45°, low 28°.
0.04Marietta, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Marietta, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.02Marietta, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Marietta, 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.
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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