Weather in Marietta, SD
Marietta, Tuesday, 20 October, 10:52
Clear. Feels like 65°. High 72°, low 46°.
Monthly outlook for Marietta, SD: average high 60.1°, average low 41.3°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (79.5°), the coolest 27 October (21.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 58.7° | 58.3° | +0.2° |
| 30 October – 8 November | 62.5° | 51.9° | +5.9° |
| 9 November – 18 November | at normal | 47.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dudley (8 mi).
0Marietta, Wednesday, 21 October
Clear. High 69°, low 48°.
0
Marietta, Thursday, 22 October
Overcast. High 78°, low 54°.
0Marietta, Friday, 23 October
Overcast. High 80°, low 56°.
0.01
Marietta, Saturday, 24 October
Light rain. High 54°, low 45°.
0.2
Marietta, Sunday, 25 October
Snow. High 45°, low 39°.
0.04Marietta, Monday, 26 October
Light snow. High 38°, low 28°.
0Marietta, Tuesday, 27 October
Clear. High 46°, low 21°.
0Marietta, Wednesday, 28 October
Clear. High 54°, low 33°.
0Marietta, Thursday, 29 October
Clear. High 52°, low 30°.
0Marietta, Friday, 30 October
Overcast. High 61°, low 34°.
0Marietta, Saturday, 31 October
Overcast. High 62°, low 45°.
0
Marietta, Sunday, 1 November
Mostly clear. High 61°, low 38°.
0Marietta, Monday, 2 November
Overcast. High 69°, low 49°.
0.05Marietta, Tuesday, 3 November
Light rain. High 63°, low 49°.
0.01Marietta, Wednesday, 4 November
Light rain. High 59°, low 46°.
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.
0.06
Marietta, 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.
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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