Weather in Marietta, SD
Marietta, Wednesday, 21 October, 05:11
Clear. Feels like 48°. High 72°, low 47°.
Monthly outlook for Marietta, SD: average high 56.7°, average low 40.7°. That is 0.7° above the climate normal for October. Precipitation is expected on 4 days (about 2.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (79.8°), the coolest 5 November (28.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59° | 57.4° | +0.9° |
| 31 October – 9 November | 52.8° | 51.3° | +0.8° |
| 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 79°, low 54°.
0
Marietta, Friday, 23 October
Light rain. High 80°, low 58°.
0.16Marietta, Saturday, 24 October
Rain. High 58°, low 46°.
0.19Marietta, Sunday, 25 October
Light rain. High 47°, low 41°.
0.01Marietta, Monday, 26 October
Light rain. High 45°, low 40°.
0.01Marietta, Tuesday, 27 October
Light rain. High 58°, low 33°.
0
Marietta, Wednesday, 28 October
Partly cloudy. High 47°, low 34°.
0Marietta, Thursday, 29 October
Partly cloudy. High 52°, low 30°.
0Marietta, Friday, 30 October
Partly cloudy. High 53°, low 36°.
0
Marietta, Saturday, 31 October
Overcast. High 60°, low 43°.
0Marietta, Sunday, 1 November
Overcast. High 64°, low 44°.
0Marietta, Monday, 2 November
Overcast. High 67°, low 47°.
1.08Marietta, Tuesday, 3 November
Rain. High 52°, low 38°.
0.99
Marietta, Wednesday, 4 November
Snow. High 39°, low 30°.
0Marietta, Thursday, 5 November
Light snow. High 34°, low 29°.
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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