Weather in Green Castle, IA
Green Castle, Wednesday, 28 October, 20:45
Overcast. Feels like 70°. High 75°, low 54°.
Monthly outlook for Green Castle, IA: average high 58.6°, average low 47.4°. That is 3.4° above the climate normal for October. Precipitation is expected on 8 days (about 5.0 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (75.4°), the coolest 12 November (34.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 63.7° | 54.2° | +5.3° |
| 7 November – 16 November | 50.1° | 48.9° | +0.6° |
| 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).
0.08
Green Castle, Thursday, 29 October
Rain. High 69°, low 50°.
0.47Green Castle, Friday, 30 October
Rain. High 56°, low 49°.
0Green Castle, Saturday, 31 October
Light rain. High 68°, low 54°.
0
Green Castle, Sunday, 1 November
Mostly clear. High 67°, low 54°.
1.52Green Castle, Monday, 2 November
Heavy rain. High 66°, low 59°.
1.95Green Castle, Tuesday, 3 November
Heavy rain. High 62°, low 53°.
0.18Green Castle, Wednesday, 4 November
Light rain. High 63°, low 60°.
0.25Green Castle, Thursday, 5 November
Light rain. High 60°, low 52°.
0.02Green Castle, Friday, 6 November
Light rain. High 52°, low 42°.
0
Green Castle, Saturday, 7 November
Partly cloudy. High 49°, low 36°.
0Green Castle, Sunday, 8 November
Overcast. High 52°, low 40°.
0.25Green Castle, Monday, 9 November
Rain. High 56°, low 44°.
0
Green Castle, Tuesday, 10 November
Clear. High 52°, low 41°.
0Green Castle, Wednesday, 11 November
Overcast. High 47°, low 37°.
0Green Castle, Thursday, 12 November
Partly cloudy. High 46°, low 35°.
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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