Weather in Marietta, SD
Marietta, Friday, 30 October, 03:08
Overcast. Feels like 40°. High 60°, low 44°.
Monthly outlook for Marietta, SD: average high 56.6°, average low 40.2°. That is 3.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 8 November (68.1°), the coolest 13 November (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 60.8° | 51.9° | +5° |
| 9 November – 18 November | 49.8° | 47.4° | +1.3° |
| 19 November – 28 November | at normal | 42.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dudley (8 mi).
0Marietta, Saturday, 31 October
Overcast. High 65°, low 50°.
0.17
Marietta, Sunday, 1 November
Light rain. High 65°, low 44°.
0Marietta, Monday, 2 November
Overcast. High 53°, low 43°.
0
Marietta, Tuesday, 3 November
Clear. High 57°, low 40°.
0
Marietta, Wednesday, 4 November
Mostly clear. High 61°, low 33°.
0Marietta, Thursday, 5 November
Overcast. High 55°, low 40°.
0
Marietta, Friday, 6 November
Partly cloudy. High 64°, low 40°.
0Marietta, Saturday, 7 November
Clear. High 60°, low 42°.
0Marietta, Sunday, 8 November
Clear. High 68°, low 42°.
0Marietta, Monday, 9 November
Overcast. High 67°, low 46°.
0Marietta, Tuesday, 10 November
Overcast. High 65°, low 48°.
0Marietta, Wednesday, 11 November
Overcast. High 49°, low 35°.
0.02
Marietta, Thursday, 12 November
Light snow. High 43°, low 33°.
0.14Marietta, Friday, 13 November
Snow. High 38°, low 32°.
0.01Marietta, Saturday, 14 November
Light snow. High 38°, low 34°.
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.
0.03Marietta, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Marietta, Sunday, 22 November
Climate normal for this date — 60-year average.
0.02Marietta, Monday, 23 November
Climate normal for this date — 60-year average.
0.03Marietta, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.02Marietta, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.06Marietta, Thursday, 26 November
Climate normal for this date — 60-year average.
0.02Marietta, Friday, 27 November
Climate normal for this date — 60-year average.
0.02Marietta, Saturday, 28 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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