Weather in Green Castle, IA
Green Castle, Wednesday, 28 October, 11:04
Mostly clear. Feels like 70°. High 71°, low 54°.
Monthly outlook for Green Castle, IA: average high 56.1°, average low 46°. That is 2° above the climate normal for October. Precipitation is expected on 8 days (about 5.7 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (71.4°), the coolest 12 November (29.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.1° | 54.2° | +4.4° |
| 7 November – 16 November | 46.1° | 48.9° | -1.6° |
| 17 November – 26 November | at normal | 45° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mitchellville (8 mi).
0.03
Green Castle, Thursday, 29 October
Light rain. High 65°, low 49°.
1.36Green Castle, Friday, 30 October
Heavy rain. High 56°, low 48°.
0.17Green Castle, Saturday, 31 October
Rain. High 67°, low 53°.
0
Green Castle, Sunday, 1 November
Partly cloudy. High 68°, low 52°.
0.22Green Castle, Monday, 2 November
Light rain. High 65°, low 58°.
0.7Green Castle, Tuesday, 3 November
Rain. High 61°, low 56°.
1.14Green Castle, Wednesday, 4 November
Heavy rain. High 56°, low 54°.
0
Green Castle, Thursday, 5 November
Overcast. High 60°, low 49°.
0Green Castle, Friday, 6 November
Overcast. High 52°, low 41°.
0Green Castle, Saturday, 7 November
Overcast. High 49°, low 39°.
0Green Castle, Sunday, 8 November
Overcast. High 52°, low 39°.
1.31Green Castle, Monday, 9 November
Rain. High 47°, low 43°.
0.61Green Castle, Tuesday, 10 November
Rain. High 45°, low 41°.
0.01Green Castle, Wednesday, 11 November
Light rain. High 41°, low 30°.
0Green Castle, Thursday, 12 November
Overcast. High 44°, low 30°.
0.07Green Castle, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Green Castle, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Green Castle, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Green Castle, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Green Castle, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Green Castle, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Green Castle, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Green Castle, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Green Castle, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Green Castle, Sunday, 22 November
Climate normal for this date — 60-year average.
0.1Green Castle, Monday, 23 November
Climate normal for this date — 60-year average.
0.04Green Castle, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Green Castle, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.09
Green Castle, 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 Green Castle, 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 Green Castle, 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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