New Castle, CO

Current conditions, hourly and 7-day forecast, and live radar for New Castle, CO 81647. Right now: mostly clear, 49°F. Data from the National Weather Service.

• Tonight: Mostly clear, with a low around 49. North northeast wind 5 to 10 mph.
• Thursday: Sunny, with a high near 86. Southeast wind 5 to 10 mph.
• Thursday Night: Mostly clear, with a low around 51. North wind 5 to 10 mph.
• Friday: Mostly sunny, with a high near 85. South wind 5 to 15 mph.
• Friday Night: Mostly clear, with a low around 53. South southeast wind 5 to 10 mph.
• Saturday: A slight chance of rain showers before 9am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.