I-90 weather conditions near rapid-city Weather, South Dakota
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 64°F 2025-08-09T22:52:00-06:00 
Tonight 2025-08-09, Mostly Clear. Mostly clear, with a low around 55. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.Sunday 2025-08-10, Areas Smoke then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Areas of smoke between 10am and 3pm. Mostly sunny, with a high near 77. West wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Sunday Night 2025-08-10, Slight Chance T-storms then Mostly Clear. A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 59. Calm wind becoming southwest around 5 mph in the evening.
Monday 2025-08-11, Sunny. Sunny, with a high near 85. West wind around 5 mph becoming north in the morning. Winds could gust as high as 15 mph.- Monday Night 2025-08-11, Mostly Clear. Mostly clear, with a low around 60. Northwest wind around 5 mph, with gusts as high as 15 mph.
- Tuesday 2025-08-12, Sunny. Sunny, with a high near 85. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
- Tuesday Night 2025-08-12, Mostly Clear. Mostly clear, with a low around 65. Southeast wind around 10 mph becoming south after midnight. Winds could gust as high as 25 mph.
- Wednesday 2025-08-13, Sunny. Sunny, with a high near 94. South wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
- Wednesday Night 2025-08-13, Mostly Clear. Mostly clear, with a low around 66.
- Thursday 2025-08-14, Sunny. Sunny, with a high near 93.
Thursday Night 2025-08-14, Slight Chance T-storms then Mostly Cloudy. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Friday 2025-08-15, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night 2025-08-15, Chance T-storms. A chance of showers and thunderstorms. Partly cloudy, with a low around 62.