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: Mostly Cloudy 47°F 2025-10-14T05:52:00-06:00 Today 2025-10-14, Slight Chance Showers then Mostly Sunny. A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 61. South wind 5 to 15 mph, with gusts as high as 29 mph.
Tonight 2025-10-14, Mostly Cloudy then Slight Chance Showers and Patchy Fog. A 20 percent chance of showers after midnight. Patchy fog after 5am. Otherwise, increasing clouds, with a low around 45. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday 2025-10-15, Chance Showers and Patchy Fog. A 40 percent chance of showers. Patchy fog before 9am. Otherwise, cloudy, with a high near 57. East wind 5 to 7 mph, with gusts as high as 17 mph.
Wednesday Night 2025-10-15, Showers. Showers and possibly a thunderstorm. Low around 48. East wind 6 to 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 80%.
Thursday 2025-10-16, Showers Likely. Showers likely. Mostly cloudy, with a high near 60. Northwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Thursday Night 2025-10-16, Chance Showers. A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 41. Northwest wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday 2025-10-17, Partly Sunny. Partly sunny, with a high near 62. Northwest wind 8 to 15 mph, with gusts as high as 29 mph.
Friday Night 2025-10-17, Partly Cloudy. Partly cloudy, with a low around 39. Northwest wind around 10 mph, with gusts as high as 24 mph.
Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 58.
Saturday Night 2025-10-18, Mostly Clear. Mostly clear, with a low around 35.
Sunday 2025-10-19, Sunny. Sunny, with a high near 70.- Sunday Night 2025-10-19, Mostly Clear. Mostly clear, with a low around 45.
- Monday 2025-10-20, Mostly Sunny. Mostly sunny, with a high near 69.