I-90 weather conditions near Rapid City, South Dakota

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Partly Cloudy and Windy 57°F 2025-10-20T11:52:00-06:00
• This Afternoon 2025-10-20, Slight Chance T-storms and Windy. A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a temperature falling to around 51 by 5pm. Windy, with a northwest wind 26 to 34 mph, with gusts as high as 50 mph.
• Tonight 2025-10-20, Mostly Clear and Breezy. Mostly clear, with a low around 35. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 43 mph.
• Tuesday 2025-10-21, Sunny. Sunny, with a high near 61. North wind 6 to 13 mph, with gusts as high as 21 mph.
• Tuesday Night 2025-10-21, Mostly Clear. Mostly clear, with a low around 36. West wind around 7 mph.
• Wednesday 2025-10-22, Sunny. Sunny, with a high near 62. West wind 5 to 7 mph becoming east in the afternoon. Winds could gust as high as 16 mph.
• Wednesday Night 2025-10-22, Mostly Clear. Mostly clear, with a low around 36. East wind around 6 mph becoming southwest after midnight.
• Thursday 2025-10-23, Mostly Sunny. Mostly sunny, with a high near 66. Southwest wind 6 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 17 mph.
• Thursday Night 2025-10-23, Mostly Clear. Mostly clear, with a low around 39. North wind around 6 mph becoming west after midnight.
• Friday 2025-10-24, Sunny. Sunny, with a high near 70.
• Friday Night 2025-10-24, Mostly Clear. Mostly clear, with a low around 44.
• Saturday 2025-10-25, Mostly Sunny. Mostly sunny, with a high near 74.
• Saturday Night 2025-10-25, Mostly Cloudy. Mostly cloudy, with a low around 43.
• Sunday 2025-10-26, Partly Sunny. Partly sunny, with a high near 65.