Weather in Marietta, IA
Marietta, Wednesday, 11 November, 05:12
Overcast. Feels like 43°. High 59°, low 44°.
Monthly outlook for Marietta, IA: average high 44.5°, average low 31.7°. That is 0.5° below the climate normal for November. Precipitation is expected on 3 days (about 2.6 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 11 November (58.7°), the coolest 23 November (18.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 49.1° | 46.9° | +1.2° |
| 21 November – 30 November | 37° | 41.4° | -2.5° |
| 1 December – 10 December | at normal | 35.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Ferguson (12 mi).
0Marietta, Thursday, 12 November
Overcast. High 46°, low 35°.
0
Marietta, Friday, 13 November
Partly cloudy. High 41°, low 28°.
0
Marietta, Saturday, 14 November
Clear. High 43°, low 25°.
0Marietta, Sunday, 15 November
Clear. High 48°, low 27°.
0
Marietta, Monday, 16 November
Mostly clear. High 48°, low 31°.
0Marietta, Tuesday, 17 November
Partly cloudy. High 49°, low 33°.
0Marietta, Wednesday, 18 November
Overcast. High 49°, low 37°.
0.11
Marietta, Thursday, 19 November
Light rain. High 58°, low 46°.
1.52Marietta, Friday, 20 November
Rain. High 50°, low 44°.
0.93
Marietta, Saturday, 21 November
Snow. High 44°, low 33°.
0Marietta, Sunday, 22 November
Overcast. High 31°, low 21°.
0Marietta, Monday, 23 November
Mostly clear. High 24°, low 18°.
0Marietta, Tuesday, 24 November
Partly cloudy. High 36°, low 20°.
0Marietta, Wednesday, 25 November
Overcast. High 43°, low 30°.
0Marietta, Thursday, 26 November
Clear. High 44°, low 34°.
0.09
Marietta, Friday, 27 November
Climate normal for this date — 60-year average.
0.07Marietta, Saturday, 28 November
Climate normal for this date — 60-year average.
0.06Marietta, Sunday, 29 November
Climate normal for this date — 60-year average.
0.06Marietta, Monday, 30 November
Climate normal for this date — 60-year average.
0.08Marietta, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Marietta, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.07Marietta, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04Marietta, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Marietta, Saturday, 5 December
Climate normal for this date — 60-year average.
0.05Marietta, Sunday, 6 December
Climate normal for this date — 60-year average.
0.06Marietta, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Marietta, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.05Marietta, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.04Marietta, Thursday, 10 December
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, IA 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, IA 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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