Sinai, South Dakota Weather
Sinai, South Dakota — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Sinai, Brookings County.
Full aviation weather for Sinai is published on the Arlington Municipal Airport (K3A9) page, 18 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. 4 airfields within reach of Sinai 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 Sinai: Brookings Regional Airport (KBKX) 19 km · Madison Municipal Airport (KMDS) 26 km · Wilder Airport (K6E5) 46 km
Conditions reported at K3A9 describe the airfield itself. Weather 18 km away can differ, particularly in terrain or near the coast. For conditions at Sinai specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Sinai.
About Sinai, South Dakota
Sinai rests upon a gently rolling prairie, a landscape defined by the broad sweep of the sky and the fertile earth. It lies 50.9 miles north-north-west of Sioux Falls, SD (from Sioux Falls, SD: bearing 341°T), and is situated 7.9 miles south-west of Volga. Fields of corn and soybeans stretch to the horizon, their green and gold hues shifting with the sun's passage, a constant reminder of the land's generosity. The air here carries a clean, crisp scent, especially in the early morning, hinting at the vast, open spaces that surround this small settlement. Occasional groves of trees, hardy and wind-swept, punctuate the flatness, offering a brief respite of shade and a whisper of rustling leaves against the pervasive quiet. The character of Sinai is one of quiet resilience, a place where the elements hold sway and life unfolds at a pace dictated by the seasons. The history of Sinai is inextricably linked to the agricultural bounty of this region, its founding driven by the promise of fertile soil for homesteaders. The local economy continues to be anchored by farming, with generations of families working the land, their lives a testament to the enduring partnership between people and prairie. While no grand monuments mark its passage, the history of Sinai is written in the weathered barns and the quiet dignity of its residents, who understand the deep roots that bind them to this place. The absence of major thoroughfares lends a distinct, unhurried rhythm to daily life, where community connections are forged in the shared experience of a farming calendar and the predictable beauty of the Dakota sky.
Live animated radar for Sinai 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 | Sinai, Brookings County, South Dakota |
| Coordinates | 44.244415°N, 97.040895°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 57061 |
| Area Code | 605 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Sinai, South Dakota Weather Page
This page provides live weather conditions and forecasts for Sinai, 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 Sinai includes coordinates 44.244415°N, 97.040895°W, situated in Brookings County. ZIP code 57061. 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.
