Weather in Castana, IA
Castana, Tuesday, 20 October, 19:12
Clear. Feels like 63°. High 70°, low 43°.
Monthly outlook for Castana, IA: average high 59.5°, average low 43.7°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 22 October (73.8°), the coolest 28 October (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 62.5° | 59.3° | +1.8° |
| 30 October – 8 November | 54.4° | 53.6° | +0.5° |
| 9 November – 18 November | at normal | 48.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Turin (5 mi).
0
Castana, Wednesday, 21 October
Clear. High 73°, low 51°.
0Castana, Thursday, 22 October
Clear. High 74°, low 48°.
0
Castana, Friday, 23 October
Overcast. High 73°, low 57°.
0Castana, Saturday, 24 October
Overcast. High 72°, low 60°.
0Castana, Sunday, 25 October
Overcast. High 68°, low 54°.
0.62
Castana, Monday, 26 October
Rain. High 54°, low 38°.
0Castana, Tuesday, 27 October
Overcast. High 44°, low 33°.
0Castana, Wednesday, 28 October
Clear. High 49°, low 32°.
0Castana, Thursday, 29 October
Clear. High 46°, low 34°.
0Castana, Friday, 30 October
Overcast. High 49°, low 36°.
0.12Castana, Saturday, 31 October
Light rain. High 50°, low 45°.
0Castana, Sunday, 1 November
Overcast. High 68°, low 48°.
0Castana, Monday, 2 November
Clear. High 51°, low 42°.
0Castana, Tuesday, 3 November
Clear. High 56°, low 37°.
0Castana, Wednesday, 4 November
Overcast. High 53°, low 41°.
0.04
Castana, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Castana, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Castana, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Castana, Sunday, 8 November
Climate normal for this date — 60-year average.
0.14
Castana, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Castana, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Castana, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Castana, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Castana, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Castana, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Castana, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Castana, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Castana, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Castana, Wednesday, 18 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 Castana, 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 Castana, 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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