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Newcastle, Wyoming Weather

Newcastle, Wyoming — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Newcastle, Weston County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Full aviation weather for Newcastle is published on the Mondell Field (KECS) page, 9 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. 2 airfields within reach of Newcastle 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 Newcastle: Custer County Airport (KCUT) 49 km

Conditions reported at KECS describe the airfield itself. Weather 9 km away can differ, particularly in terrain or near the coast. For conditions at Newcastle specifically, see the current conditions and forecast above.

🌿 Air Quality
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About Newcastle, Wyoming

Newcastle sits at the western edge of Wyoming's Powder River Basin, where the land begins to swell and fold into the foothills of the Black Hills. It lies 50.9 miles west-south-west of Rapid City, SD (from Rapid City, SD: bearing 252°T), and is situated 27.0 miles south-east of Upton. The sky here is a generous, boundless canvas, often painted with the bruised purples and fiery oranges of evening light that spills across the rolling prairie grass, turning the dry stalks to burnished gold. The air carries the scent of sun-baked earth and distant pine, a clean, sharp fragrance that speaks of wide-open spaces. The terrain is a study in subtle gradients, a landscape of low, rounded hills and shallow draws that guide the eye towards the horizon, punctuated by hardy sagebrush and the occasional weathered fence line. The few trees that dot the landscape, often cottonwoods or junipers, stand as solitary sentinels against the vastness, their branches reaching towards the immense sky. The history of Newcastle is intrinsically tied to the rich mineral veins discovered in its surrounding hills, particularly coal and later, bentonite clay, which shaped its early economy and gave the town its distinctive character. For generations, the rhythm of Newcastle has been set by the demands of mining and ranching, a life lived close to the land and its resources. The railroad, a vital artery for transporting these commodities, played a crucial role in its development, and remnants of that era can still be felt in the quiet hum of the present-day freight trains that occasionally rumble through. While the boom-and-bust cycles have been a constant companion, Newcastle has maintained a resilient, down-to-earth spirit, a community where neighbours know each other and the pace of life allows for contemplation under that expansive Wyoming sky.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Newcastle and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationNewcastle, Weston County, Wyoming
Coordinates43.8547°N, 104.204941°W
TimezoneMountain Time (America/Denver)
ZIP Code(s)82701
Area Code307
Page generatedSeptember 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Newcastle, Wyoming Weather Page

This page provides live weather conditions and forecasts for Newcastle, Wyoming, 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 Newcastle includes coordinates 43.854700°N, 104.204941°W, situated in Weston County. ZIP code 82701. Telephone area code: 307. Timezone: Mountain Time (America/Denver).

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.