Castlewood, South Dakota Weather
Castlewood, South Dakota — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Castlewood, Hamlin County.
Full aviation weather for Castlewood is published on the Watertown Regional Airport (KATY) page, 23 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 5 airfields within reach of Castlewood have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Castlewood: Arlington Municipal Airport (K3A9) 37 km · Brookings Regional Airport (KBKX) 50 km · Wilder Airport (K6E5) 53 km · Clark County Airport (K8D7) 57 km
Conditions reported at KATY describe the airfield itself. Weather 23 km away can differ, particularly in terrain or near the coast. For conditions at Castlewood specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Castlewood.
About Castlewood, South Dakota
Castlewood rests as a quiet settlement upon the broad, rolling prairie of eastern South Dakota. It lies 82.7 miles north-north-west of Sioux Falls, SD (from Sioux Falls, SD: bearing 349°T), and is situated 12.9 miles south-south-east of Watertown. The land here is a study in subtle contours, a generous expanse where the horizon seems to stretch forever, broken only by the occasional cluster of farmsteads or the distant shimmer of heat rising from sun-baked fields. The air itself carries a particular clarity, especially in the early morning when the dew still clings to the grasses, lending a soft sheen to the landscape before the sun asserts its dominion. The character of Castlewood is one of weathered resilience, a place that has learned to live in concert with the vast, open sky and the predictable, yet often dramatic, moods of the seasons. The roots of Castlewood are deeply entwined with the agricultural bounty of Hamlin County, a heritage that continues to shape its local economy. For generations, the land has yielded crops, and the steady rhythm of planting and harvest dictates the pulse of daily life. The town itself, though modest in scale, possesses a quiet dignity, a testament to the enduring spirit of those who chose to build their lives here. It’s a place where history isn't always overtly displayed in grand monuments, but rather lives on in the stories shared over coffee at the local diner and in the enduring patterns of the land that have sustained its people for so long.
Live animated radar for Castlewood and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Castlewood, Hamlin County, South Dakota |
| Coordinates | 44.722742°N, 97.030068°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 57223 |
| Area Code | 605 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Castlewood, South Dakota Weather Page
This page provides live weather conditions and forecasts for Castlewood, South Dakota, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Castlewood includes coordinates 44.722742°N, 97.030068°W, situated in Hamlin County. ZIP code 57223. Telephone area code: 605. Timezone: Central Time (America/Chicago).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
