I-90 weather conditions near Rapid City, South Dakota

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Thunderstorm in Vicinity Light Rain 72°F 2025-07-14T18:52:00-06:00
• Tonight 2025-07-14, Chance T-storms then Slight Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
• Tuesday 2025-07-15, Breezy. Mostly Sunny then Chance T-storms. A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 77. Breezy, with a northwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 35 mph.
• Tuesday Night 2025-07-15, Chance T-storms then Showers. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 54. Northeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
• Wednesday 2025-07-16, Showers. Showers and possibly a thunderstorm. High near 63. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
• Wednesday Night 2025-07-16, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Northeast wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
• Thursday 2025-07-17, Partly Sunny. Partly sunny, with a high near 78. Southeast wind 5 to 15 mph, with gusts as high as 30 mph.
• Thursday Night 2025-07-17, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 30 mph.
• Friday 2025-07-18, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. South wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
• Friday Night 2025-07-18, Chance T-storms. A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 60.
• Saturday 2025-07-19, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85.
• Saturday Night 2025-07-19, Chance T-storms. A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
• Sunday 2025-07-20, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
• Sunday Night 2025-07-20, Chance T-storms. A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
• Monday 2025-07-21, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Sunny, with a high near 92.