I-90 weather conditions near Rapid City, South Dakota

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 56°F 2025-11-19T14:52:00-07:00
• This Afternoon 2025-11-19, Slight Chance Showers. A 20 percent chance of showers. Mostly sunny, with a high near 58. North wind around 11 mph, with gusts as high as 24 mph.
• Tonight 2025-11-19, Mostly Cloudy then Patchy Fog. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 31. North wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
• Thursday 2025-11-20, Patchy Fog then Mostly Sunny. Patchy fog before 11am. Otherwise, partly sunny, with a high near 45. Light southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
• Thursday Night 2025-11-20, Partly Cloudy. Partly cloudy, with a low around 32. South wind around 6 mph becoming southwest after midnight.
• Friday 2025-11-21, Mostly Sunny. Mostly sunny, with a high near 58. Southwest wind 5 to 8 mph becoming southeast in the morning. Winds could gust as high as 16 mph.
• Friday Night 2025-11-21, Partly Cloudy. Partly cloudy, with a low around 35. Southwest wind around 7 mph.
• Saturday 2025-11-22, Sunny. Sunny, with a high near 61. West wind 6 to 8 mph, with gusts as high as 16 mph.
• Saturday Night 2025-11-22, Mostly Clear. Mostly clear, with a low around 33. West wind around 7 mph.
• Sunday 2025-11-23, Sunny. Sunny, with a high near 60.
• Sunday Night 2025-11-23, Mostly Clear. Mostly clear, with a low around 32.
• Monday 2025-11-24, Mostly Sunny. Mostly sunny, with a high near 59.
• Monday Night 2025-11-24, Partly Cloudy. Partly cloudy, with a low around 30.
• Tuesday 2025-11-25, Mostly Sunny and Breezy. Mostly sunny, with a high near 42. Breezy.
• Tuesday Night 2025-11-25, Partly Cloudy. Partly cloudy, with a low around 19.
• Wednesday 2025-11-26, Mostly Sunny. Mostly sunny, with a high near 33.