Keystone, SD

Current conditions, hourly and 7-day forecast, and live radar for Keystone, SD 57751. Right now: mostly clear, 53°F. Data from the National Weather Service.

• Tonight: Mostly clear, with a low around 53. Southwest wind around 3 mph.
• Thursday: Sunny. High near 85, with temperatures falling to around 83 in the afternoon. Southwest wind 2 to 9 mph, with gusts as high as 25 mph.
• Thursday Night: Mostly clear. Low around 62, with temperatures rising to around 64 overnight. Southwest wind 5 to 9 mph, with gusts as high as 28 mph.
• Friday: Mostly sunny. High near 83, with temperatures falling to around 78 in the afternoon. Northwest wind around 13 mph, with gusts as high as 35 mph.
• Friday Night: Partly cloudy, with a low around 50. North wind 1 to 13 mph, with gusts as high as 32 mph.
• Saturday: Mostly sunny, with a high near 68. East wind 1 to 10 mph, with gusts as high as 29 mph.