Weather in Marengo, IA
Marengo, Friday, 9 October, 16:17
Clear. Feels like 82°. High 81°, low 57°.
Monthly outlook for Marengo, IA: average high 67.8°, average low 51°. That is 3.4° above the climate normal for October. Precipitation is expected on 2 days (about 1.7 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 October (83.4°), the coolest 18 October (31.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 69.3° | 62.7° | +3.7° |
| 19 October – 28 October | 65.3° | 58.6° | +3.7° |
| 29 October – 7 November | at normal | 53.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ladora (7 mi).
0
Marengo, Saturday, 10 October
Overcast. High 83°, low 62°.
0Marengo, Sunday, 11 October
Clear. High 80°, low 58°.
0Marengo, Monday, 12 October
Overcast. High 83°, low 68°.
0Marengo, Tuesday, 13 October
Clear. High 75°, low 65°.
0.27
Marengo, Wednesday, 14 October
Rain. High 68°, low 62°.
1.35Marengo, Thursday, 15 October
Heavy rain. High 74°, low 56°.
0Marengo, Friday, 16 October
Light rain. High 55°, low 42°.
0Marengo, Saturday, 17 October
Overcast. High 45°, low 36°.
0
Marengo, Sunday, 18 October
Mostly clear. High 49°, low 32°.
0Marengo, Monday, 19 October
Overcast. High 57°, low 40°.
0Marengo, Tuesday, 20 October
Clear. High 62°, low 42°.
0Marengo, Wednesday, 21 October
Clear. High 67°, low 46°.
0Marengo, Thursday, 22 October
Clear. High 65°, low 49°.
0Marengo, Friday, 23 October
Clear. High 70°, low 50°.
0Marengo, Saturday, 24 October
Overcast. High 71°, low 53°.
0.07
Marengo, Sunday, 25 October
Climate normal for this date — 60-year average.
0.09Marengo, 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.
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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