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 42°F 2025-10-12T21:52:00-06:00 
Tonight 2025-10-12, Clear then Frost. Widespread frost, mainly after 2am. Otherwise, clear, with a low around 30. North wind around 5 mph becoming light and variable after midnight.
Columbus Day 2025-10-13, Frost then Increasing Clouds. Widespread frost, mainly before 8am. Otherwise, increasing clouds, with a high near 60. Light south wind becoming southeast 13 to 18 mph in the morning. Winds could gust as high as 25 mph.Monday Night 2025-10-13, Mostly Cloudy then Chance Showers. A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 39. Southeast wind 11 to 17 mph.
Tuesday 2025-10-14, Slight Chance Showers then Partly Sunny. A 20 percent chance of showers before noon. Mostly cloudy, with a high near 58. Southeast wind 11 to 15 mph, with gusts as high as 29 mph.
Tuesday Night 2025-10-14, Mostly Cloudy. Mostly cloudy, with a low around 44. Southeast wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday 2025-10-15, Chance Showers. A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 65. Southeast wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday Night 2025-10-15, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. East wind around 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Thursday 2025-10-16, Chance Showers. A chance of showers. Partly sunny, with a high near 62. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.Thursday Night 2025-10-16, Slight Chance Showers then Partly Cloudy. A slight chance of showers before midnight. Partly cloudy, with a low around 40.
Friday 2025-10-17, Mostly Sunny. Mostly sunny, with a high near 64.Friday Night 2025-10-17, Slight Chance Showers then Partly Cloudy. A slight chance of showers. Partly cloudy, with a low around 38.
- Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 59.
Saturday Night 2025-10-18, Mostly Clear. Mostly clear, with a low around 38.
Sunday 2025-10-19, Sunny. Sunny, with a high near 66.