I-90 weather conditions near Rapid City, South Dakota
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 57°F 2025-07-12T06:52:00-06:00 
Today 2025-07-12, Sunny. Sunny, with a high near 86. Southwest wind around 5 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Tonight 2025-07-12, Mostly Clear. Mostly clear, with a low around 59. East wind around 5 mph becoming west after midnight. Winds could gust as high as 15 mph.- Sunday 2025-07-13, Sunny. Sunny, with a high near 92. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
- Sunday Night 2025-07-13, Mostly Clear. Mostly clear, with a low around 66. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Monday 2025-07-14, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night 2025-07-14, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 62. Southeast wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.Tuesday 2025-07-15, Mostly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. North wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night 2025-07-15, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday 2025-07-16, Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 70.Wednesday Night 2025-07-16, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Thursday 2025-07-17, Slight Chance Showers then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Thursday Night 2025-07-17, Slight Chance T-storms. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.- Friday 2025-07-18, Mostly Sunny. Mostly sunny, with a high near 80.