Weather in Marengo, IA
Marengo, Saturday, 10 October, 10:50
Clear. Feels like 76°. High 82°, low 61°.
Monthly outlook for Marengo, IA: average high 63.2°, average low 47.2°. That is 1.2° above the climate normal for October. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 October (83.5°), the coolest 18 October (27.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 65.7° | 62.1° | +2° |
| 20 October – 29 October | 59.1° | 58.4° | +0.4° |
| 30 October – 8 November | at normal | 53.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ladora (7 mi).
0Marengo, Sunday, 11 October
Clear. High 82°, low 61°.
0Marengo, Monday, 12 October
Clear. High 84°, low 67°.
0.05
Marengo, Tuesday, 13 October
Light rain. High 75°, low 62°.
0.04Marengo, Wednesday, 14 October
Light rain. High 68°, low 56°.
0.06Marengo, Thursday, 15 October
Light rain. High 60°, low 54°.
0Marengo, Friday, 16 October
Clear. High 57°, low 37°.
0
Marengo, Saturday, 17 October
Overcast. High 41°, low 31°.
0
Marengo, Sunday, 18 October
Mostly clear. High 47°, low 27°.
0Marengo, Monday, 19 October
Mostly clear. High 60°, low 38°.
0Marengo, Tuesday, 20 October
Overcast. High 62°, low 44°.
0.22Marengo, Wednesday, 21 October
Rain. High 56°, low 48°.
0Marengo, Thursday, 22 October
Clear. High 67°, low 43°.
0Marengo, Friday, 23 October
Clear. High 57°, low 40°.
0.06Marengo, Saturday, 24 October
Light rain. High 58°, low 48°.
0.15Marengo, Sunday, 25 October
Light rain. High 54°, low 37°.
0.09
Marengo, Monday, 26 October
Climate normal for this date — 60-year average.
0.07Marengo, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Marengo, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.09Marengo, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09
Marengo, Friday, 30 October
Climate normal for this date — 60-year average.
0.14Marengo, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Marengo, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Marengo, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Marengo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Marengo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Marengo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Marengo, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Marengo, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Marengo, Sunday, 8 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 Marengo, 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 Marengo, 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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