Weather in Marietta, SD
Marietta, Thursday, 22 October, 14:33
Partly cloudy. Feels like 76°. High 77°, low 54°.
Monthly outlook for Marietta, SD: average high 53.8°, average low 40.9°. That is 0.5° below the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (78.1°), the coolest 1 November (33.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 54.3° | 56.5° | -1.2° |
| 1 November – 10 November | 53.1° | 50.8° | +1.3° |
| 11 November – 20 November | at normal | 46.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dudley (8 mi).
0
Marietta, Friday, 23 October
Clear. High 78°, low 56°.
0
Marietta, Saturday, 24 October
Mostly clear. High 54°, low 41°.
0.04
Marietta, Sunday, 25 October
Light rain. High 48°, low 41°.
0.57Marietta, Monday, 26 October
Rain. High 41°, low 38°.
0.01Marietta, Tuesday, 27 October
Light rain. High 59°, low 35°.
0
Marietta, Wednesday, 28 October
Overcast. High 55°, low 44°.
0Marietta, Thursday, 29 October
Overcast. High 48°, low 35°.
0.22
Marietta, Friday, 30 October
Snow. High 42°, low 35°.
0.31Marietta, Saturday, 31 October
Snow. High 41°, low 35°.
0Marietta, Sunday, 1 November
Mostly clear. High 50°, low 33°.
0Marietta, Monday, 2 November
Overcast. High 52°, low 35°.
0Marietta, Tuesday, 3 November
Overcast. High 52°, low 41°.
0.02Marietta, Wednesday, 4 November
Light rain. High 46°, low 45°.
0Marietta, Thursday, 5 November
Overcast. High 54°, low 45°.
0Marietta, Friday, 6 November
Overcast. High 63°, low 43°.
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.
0.02Marietta, Friday, 20 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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