I-90 weather conditions near Keystone, South Dakota
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 38°F 2024-05-21T23:53:00-06:00 
Overnight 2024-05-22, Mostly Clear. Mostly clear, with a low around 39. West wind around 6 mph.Wednesday 2024-05-22, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 66. West wind 6 to 9 mph, with gusts as high as 25 mph.
- Wednesday Night 2024-05-22, Mostly Clear. Mostly clear, with a low around 46. Southwest wind 5 to 7 mph, with gusts as high as 24 mph.
Thursday 2024-05-23, Mostly Sunny then Chance Showers. A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 66. West wind 5 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Thursday Night 2024-05-23, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 37. Northwest wind 8 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.Friday 2024-05-24, Slight Chance Showers then Sunny. A 20 percent chance of showers before noon. Mostly sunny, with a high near 59. Northwest wind 6 to 8 mph, with gusts as high as 24 mph.
- Friday Night 2024-05-24, Mostly Clear. Mostly clear, with a low around 41. North wind around 6 mph becoming light and variable. Winds could gust as high as 17 mph.
Saturday 2024-05-25, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. West wind 5 to 7 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Saturday Night 2024-05-25, Slight Chance T-storms. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 47.Sunday 2024-05-26, Chance Showers then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Sunday Night 2024-05-26, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Memorial Day 2024-05-27, Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 64.- Monday Night 2024-05-27, Mostly Clear. Mostly clear, with a low around 45.
Tuesday 2024-05-28, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Sunny, with a high near 71.