Weather in Newcastle, Wyoming
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:14 PM ET · Refreshes every hour
81°F
Partly cloudy
Feels like 77°F
15%
Humidity
9 mph
Wind Speed
About Weather in Newcastle
Newcastle is located in Wyoming (coordinates: 43.850271°N, 104.196487°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.