Weather in Castlewood, SD
Castlewood, Thursday, 22 October, 03:03
Clear. Feels like 40°. High 75°, low 43°.
Monthly outlook for Castlewood, SD: average high 55.1°, average low 39.5°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (75°), the coolest 2 November (31.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 56.3° | 51.3° | +2.8° |
| 1 November – 10 November | 53° | 45.2° | +4.3° |
| 11 November – 20 November | at normal | 39.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Watertown (14 mi).
0
Castlewood, Friday, 23 October
Partly cloudy. High 70°, low 54°.
0.03
Castlewood, Saturday, 24 October
Light rain. High 63°, low 46°.
0.12Castlewood, Sunday, 25 October
Light rain. High 45°, low 42°.
0.65Castlewood, Monday, 26 October
Rain. High 41°, low 39°.
0.44
Castlewood, Tuesday, 27 October
Snow. High 41°, low 35°.
0.02Castlewood, Wednesday, 28 October
Light snow. High 48°, low 34°.
0Castlewood, Thursday, 29 October
Partly cloudy. High 55°, low 33°.
0
Castlewood, Friday, 30 October
Overcast. High 64°, low 42°.
0Castlewood, Saturday, 31 October
Overcast. High 60°, low 50°.
0Castlewood, Sunday, 1 November
Partly cloudy. High 56°, low 41°.
0
Castlewood, Monday, 2 November
Clear. High 44°, low 31°.
0Castlewood, Tuesday, 3 November
Overcast. High 51°, low 33°.
0Castlewood, Wednesday, 4 November
Overcast. High 62°, low 38°.
0.02Castlewood, Thursday, 5 November
Snow. High 49°, low 32°.
0.01Castlewood, Friday, 6 November
Light rain. High 55°, low 38°.
0.02
Castlewood, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Castlewood, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Castlewood, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Castlewood, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Castlewood, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Castlewood, Thursday, 12 November
Climate normal for this date — 60-year average.
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.
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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