I-90 weather conditions near Spearfish, South Dakota
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 64°F 2024-06-20T11:15:00-06:00 
Today 2024-06-20, Isolated T-storms. Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 67. East wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.Tonight 2024-06-20, Chance Showers then Slight Chance T-storms and Patchy Fog. A 30 percent chance of showers and thunderstorms, mainly between 9pm and midnight. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. East wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 21 mph.
Friday 2024-06-21, Chance T-storms and Areas Fog. A 50 percent chance of showers and thunderstorms, mainly after noon. Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 70. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Friday Night 2024-06-21, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 57. East wind 5 to 10 mph becoming light and variable. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
Saturday 2024-06-22, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 80. West wind 5 to 9 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Saturday Night 2024-06-22, Mostly Clear. Mostly clear, with a low around 59. North wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 16 mph.
Sunday 2024-06-23, Sunny. Sunny, with a high near 88. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 21 mph.- Sunday Night 2024-06-23, Mostly Clear. Mostly clear, with a low around 67. Southeast wind around 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
- Monday 2024-06-24, Sunny. Sunny, with a high near 91.
Monday Night 2024-06-24, Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly clear, with a low around 61.- Tuesday 2024-06-25, Sunny. Sunny, with a high near 86.
- Tuesday Night 2024-06-25, Mostly Clear. Mostly clear, with a low around 61.
Wednesday 2024-06-26, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Sunny, with a high near 88.