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 29°F 2026-05-05T05:52:00-06:00
Today 2026-05-05, Mostly Cloudy then Chance Rain/Snow. A chance of rain and snow showers between noon and 1pm, then a chance of rain showers after 1pm. Mostly cloudy, with a high near 49. North wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight 2026-05-05, Slight Chance Rain/Snow then Mostly Cloudy. A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers between 10pm and midnight. Mostly cloudy, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday 2026-05-06, Partly Sunny. Partly sunny, with a high near 54. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night 2026-05-06, Mostly Clear. Mostly clear, with a low around 35. Northeast wind around 6 mph becoming light and variable. Winds could gust as high as 15 mph.
Thursday 2026-05-07, Mostly Sunny then Chance Showers. A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. West wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 28 mph.
Thursday Night 2026-05-07, Chance Showers then Slight Chance Showers. A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 45. West wind 8 to 13 mph, with gusts as high as 26 mph.
Friday 2026-05-08, Sunny then Slight Chance Showers. A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. North wind 8 to 16 mph, with gusts as high as 33 mph.
Friday Night 2026-05-08, Mostly Cloudy then Slight Chance Showers. A slight chance of showers after midnight. Mostly cloudy, with a low around 47. North wind 6 to 11 mph becoming light and variable. Winds could gust as high as 26 mph.
Saturday 2026-05-09, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 66.
Saturday Night 2026-05-09, Showers Likely. Showers likely, mainly before midnight. Mostly cloudy, with a low around 42.
Sunday 2026-05-10, Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Sunday Night 2026-05-10, Partly Cloudy. Partly cloudy, with a low around 43.
Monday 2026-05-11, Mostly Sunny. Mostly sunny, with a high near 76.
Current condition: Fair 29°F 2026-05-05T05:52:00-06:00 Today 2026-05-05, Mostly Cloudy then Chance Rain/Snow. A chance of rain and snow showers between noon and 1pm, then a chance of rain showers after 1pm. Mostly cloudy, with a high near 49. North wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight 2026-05-05, Slight Chance Rain/Snow then Mostly Cloudy. A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers between 10pm and midnight. Mostly cloudy, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday 2026-05-06, Partly Sunny. Partly sunny, with a high near 54. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night 2026-05-06, Mostly Clear. Mostly clear, with a low around 35. Northeast wind around 6 mph becoming light and variable. Winds could gust as high as 15 mph.Thursday 2026-05-07, Mostly Sunny then Chance Showers. A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. West wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 28 mph.
Thursday Night 2026-05-07, Chance Showers then Slight Chance Showers. A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 45. West wind 8 to 13 mph, with gusts as high as 26 mph.
Friday 2026-05-08, Sunny then Slight Chance Showers. A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. North wind 8 to 16 mph, with gusts as high as 33 mph.
Friday Night 2026-05-08, Mostly Cloudy then Slight Chance Showers. A slight chance of showers after midnight. Mostly cloudy, with a low around 47. North wind 6 to 11 mph becoming light and variable. Winds could gust as high as 26 mph.
Saturday 2026-05-09, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 66.
Saturday Night 2026-05-09, Showers Likely. Showers likely, mainly before midnight. Mostly cloudy, with a low around 42.
Sunday 2026-05-10, Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Sunday Night 2026-05-10, Partly Cloudy. Partly cloudy, with a low around 43.