Weather in Green Castle, IA
Green Castle, Friday, 13 November, 15:42
Clear. Feels like 37°. High 41°, low 26°.
Monthly outlook for Green Castle, IA: average high 45.4°, average low 29.3°. That is 0.2° above the climate normal for November. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 20 November (61.7°), the coolest 24 November (16.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 50.5° | 47° | +1.9° |
| 23 November – 2 December | 36.9° | 40.8° | -2.2° |
| 3 December – 12 December | at normal | 35° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Mitchellville (8 mi).
0Green Castle, Saturday, 14 November
Clear. High 43°, low 23°.
0Green Castle, Sunday, 15 November
Clear. High 47°, low 26°.
0
Green Castle, Monday, 16 November
Overcast. High 52°, low 30°.
0Green Castle, Tuesday, 17 November
Clear. High 55°, low 35°.
0Green Castle, Wednesday, 18 November
Overcast. High 57°, low 42°.
0.01
Green Castle, Thursday, 19 November
Light rain. High 55°, low 43°.
0.19Green Castle, Friday, 20 November
Light rain. High 62°, low 40°.
0.16
Green Castle, Saturday, 21 November
Snow. High 61°, low 31°.
0
Green Castle, Sunday, 22 November
Mostly clear. High 31°, low 23°.
0Green Castle, Monday, 23 November
Overcast. High 22°, low 18°.
0Green Castle, Tuesday, 24 November
Clear. High 29°, low 16°.
0Green Castle, Wednesday, 25 November
Mostly clear. High 37°, low 19°.
0Green Castle, Thursday, 26 November
Overcast. High 43°, low 28°.
0
Green Castle, Friday, 27 November
Partly cloudy. High 48°, low 32°.
0Green Castle, Saturday, 28 November
Overcast. High 43°, low 35°.
0.07Green Castle, Sunday, 29 November
Climate normal for this date — 60-year average.
0.06Green Castle, Monday, 30 November
Climate normal for this date — 60-year average.
0.08Green Castle, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Green Castle, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.07Green Castle, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04Green Castle, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Green Castle, Saturday, 5 December
Climate normal for this date — 60-year average.
0.05Green Castle, Sunday, 6 December
Climate normal for this date — 60-year average.
0.06Green Castle, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Green Castle, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.04Green Castle, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.04Green Castle, Thursday, 10 December
Climate normal for this date — 60-year average.
0.05Green Castle, Friday, 11 December
Climate normal for this date — 60-year average.
0.04Green Castle, Saturday, 12 December
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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