Weather in Old Peru, IA
Old Peru, Friday, 16 October, 20:20
Clear. Feels like 41°. High 51°, low 43°.
Monthly outlook for Old Peru, IA: average high 61.8°, average low 46.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 23 October (73°), the coolest 17 October (36.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 63.8° | 60.8° | +1.7° |
| 26 October – 4 November | 58.5° | 55.9° | +1.4° |
| 5 November – 14 November | at normal | 50.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Thayer (15 mi).
0
Old Peru, Saturday, 17 October
Clear. High 56°, low 36°.
0Old Peru, Sunday, 18 October
Clear. High 63°, low 43°.
0
Old Peru, Monday, 19 October
Overcast. High 64°, low 46°.
0Old Peru, Tuesday, 20 October
Clear. High 68°, low 47°.
0.01
Old Peru, Wednesday, 21 October
Light rain. High 70°, low 53°.
0
Old Peru, Thursday, 22 October
Mostly clear. High 71°, low 51°.
0
Old Peru, Friday, 23 October
Partly cloudy. High 73°, low 57°.
0Old Peru, Saturday, 24 October
Mostly clear. High 68°, low 54°.
0Old Peru, Sunday, 25 October
Overcast. High 55°, low 48°.
0.11Old Peru, Monday, 26 October
Light rain. High 60°, low 48°.
0Old Peru, Tuesday, 27 October
Overcast. High 63°, low 51°.
0Old Peru, Wednesday, 28 October
Overcast. High 59°, low 43°.
0.82Old Peru, Thursday, 29 October
Rain. High 56°, low 44°.
0.06Old Peru, Friday, 30 October
Light rain. High 56°, low 45°.
0Old Peru, Saturday, 31 October
Clear. High 58°, low 39°.
0.2
Old Peru, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Old Peru, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Old Peru, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Old Peru, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Old Peru, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Old Peru, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Old Peru, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Old Peru, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Old Peru, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Old Peru, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Old Peru, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Old Peru, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Old Peru, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Old Peru, Saturday, 14 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 Old Peru, 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 Old Peru, 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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