Weather in Castlewood, SD
Castlewood, Wednesday, 28 October, 05:05
Overcast. Feels like 44°. High 58°, low 45°.
Monthly outlook for Castlewood, SD: average high 54.2°, average low 42°. That is 4.8° above the climate normal for October. Precipitation is expected on 5 days (about 3.5 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 1 November (64°), the coolest 6 November (31.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 55.4° | 47.7° | +4.3° |
| 7 November – 16 November | 52.2° | 41.5° | +5.9° |
| 17 November – 26 November | at normal | 36.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Watertown (14 mi).
0
Castlewood, Thursday, 29 October
Mostly clear. High 56°, low 36°.
0Castlewood, Friday, 30 October
Mostly clear. High 58°, low 40°.
0.01
Castlewood, Saturday, 31 October
Light rain. High 60°, low 44°.
0Castlewood, Sunday, 1 November
Overcast. High 64°, low 51°.
1.97Castlewood, Monday, 2 November
Heavy rain. High 59°, low 56°.
0.5Castlewood, Tuesday, 3 November
Rain. High 54°, low 49°.
0.6Castlewood, Wednesday, 4 November
Rain. High 49°, low 48°.
0
Castlewood, Thursday, 5 November
Clear. High 48°, low 37°.
0
Castlewood, Friday, 6 November
Partly cloudy. High 47°, low 31°.
0Castlewood, Saturday, 7 November
Clear. High 51°, low 33°.
0Castlewood, Sunday, 8 November
Mostly clear. High 60°, low 41°.
0Castlewood, Monday, 9 November
Overcast. High 59°, low 44°.
0.01Castlewood, Tuesday, 10 November
Light rain. High 56°, low 46°.
0Castlewood, Wednesday, 11 November
Mostly clear. High 44°, low 37°.
0.11Castlewood, Thursday, 12 November
Light rain. High 43°, low 33°.
0.03Castlewood, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Castlewood, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Castlewood, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Castlewood, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Castlewood, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Castlewood, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Castlewood, Thursday, 19 November
Climate normal for this date — 60-year average.
0.04Castlewood, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Castlewood, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Castlewood, Sunday, 22 November
Climate normal for this date — 60-year average.
0.03Castlewood, Monday, 23 November
Climate normal for this date — 60-year average.
0.03Castlewood, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.04Castlewood, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.04Castlewood, 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 Castlewood, SD 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 Castlewood, SD 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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