Weather in Marietta, IA
Marietta, Tuesday, 27 October, 00:02
Overcast. Feels like 55°. High 67°, low 54°.
Monthly outlook for Marietta, IA: average high 54.7°, average low 44.1°. That is 1° above the climate normal for October. Precipitation is expected on 8 days (about 4.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (72.4°), the coolest 7 November (28.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 60.1° | 54.4° | +3.2° |
| 6 November – 15 November | 45.6° | 48.9° | -1.8° |
| 16 November – 25 November | at normal | 45.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ferguson (12 mi).
0.04
Marietta, Wednesday, 28 October
Light rain. High 72°, low 52°.
0.17Marietta, Thursday, 29 October
Rain. High 67°, low 50°.
0.04Marietta, Friday, 30 October
Light rain. High 62°, low 47°.
0.23Marietta, Saturday, 31 October
Rain. High 63°, low 55°.
0Marietta, Sunday, 1 November
Overcast. High 62°, low 51°.
0.19Marietta, Monday, 2 November
Rain. High 56°, low 51°.
0.79Marietta, Tuesday, 3 November
Rain. High 60°, low 53°.
2.59Marietta, Wednesday, 4 November
Rain. High 51°, low 46°.
0.06Marietta, Thursday, 5 November
Light rain. High 41°, low 33°.
0Marietta, Friday, 6 November
Overcast. High 38°, low 30°.
0
Marietta, Saturday, 7 November
Clear. High 42°, low 29°.
0Marietta, Sunday, 8 November
Overcast. High 48°, low 32°.
0Marietta, Monday, 9 November
Overcast. High 56°, low 48°.
0Marietta, Tuesday, 10 November
Overcast. High 50°, low 42°.
0.01Marietta, Wednesday, 11 November
Light rain. High 41°, low 32°.
0.06
Marietta, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Marietta, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Marietta, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Marietta, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Marietta, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Marietta, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Marietta, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Marietta, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Marietta, Friday, 20 November
Climate normal for this date — 60-year average.
0.06Marietta, Saturday, 21 November
Climate normal for this date — 60-year average.
0.02
Marietta, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Marietta, Monday, 23 November
Climate normal for this date — 60-year average.
0.04Marietta, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.05Marietta, Wednesday, 25 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, 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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