Weather in Old Peru, IA
Old Peru, Wednesday, 28 October, 19:17
Overcast. Feels like 70°. High 75°, low 55°.
Monthly outlook for Old Peru, IA: average high 56.5°, average low 45.8°. That is 1.8° above the climate normal for October. Precipitation is expected on 9 days (about 4.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (74.5°), the coolest 11 November (30.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 63.2° | 54.9° | +4.6° |
| 7 November – 16 November | 45.4° | 49.9° | -2.5° |
| 17 November – 26 November | at normal | 46.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Thayer (15 mi).
0.08
Old Peru, Thursday, 29 October
Rain. High 65°, low 51°.
0.88Old Peru, Friday, 30 October
Heavy rain. High 61°, low 50°.
0.01Old Peru, Saturday, 31 October
Light rain. High 71°, low 53°.
0Old Peru, Sunday, 1 November
Overcast. High 69°, low 54°.
0.96Old Peru, Monday, 2 November
Rain. High 64°, low 59°.
0.37Old Peru, Tuesday, 3 November
Rain. High 63°, low 59°.
0.34Old Peru, Wednesday, 4 November
Rain. High 60°, low 57°.
0.06Old Peru, Thursday, 5 November
Light rain. High 56°, low 42°.
0
Old Peru, Friday, 6 November
Clear. High 48°, low 35°.
0Old Peru, Saturday, 7 November
Overcast. High 45°, low 34°.
1.04Old Peru, Sunday, 8 November
Rain. High 45°, low 43°.
0.2Old Peru, Monday, 9 November
Rain. High 51°, low 43°.
0Old Peru, Tuesday, 10 November
Clear. High 47°, low 37°.
0
Old Peru, Wednesday, 11 November
Partly cloudy. High 40°, low 30°.
0Old Peru, Thursday, 12 November
Overcast. High 44°, low 31°.
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.
0.05
Old Peru, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Old Peru, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Old Peru, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Old Peru, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Old Peru, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Old Peru, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Old Peru, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Old Peru, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Old Peru, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Old Peru, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Old Peru, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.09Old Peru, Thursday, 26 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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