I-90 weather conditions near New Underwood, South Dakota
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fog/Mist 50°F 2025-10-15T17:52:00-06:00 Tonight 2025-10-15, Showers and Areas Fog then Chance T-storms and Areas Fog. Showers and thunderstorms, mainly before midnight. Areas of fog. Low around 47. Light and variable wind becoming north 8 to 13 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Thursday 2025-10-16, Chance Showers and Areas Fog. A 50 percent chance of showers. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 60. Northwest wind 13 to 15 mph, with gusts as high as 25 mph.Thursday Night 2025-10-16, Slight Chance Showers then Mostly Clear. A 20 percent chance of showers before midnight. Partly cloudy, with a low around 39. West wind 7 to 11 mph becoming south after midnight. Winds could gust as high as 22 mph.
Friday 2025-10-17, Mostly Sunny. Mostly sunny, with a high near 66. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.Friday Night 2025-10-17, Partly Cloudy then Slight Chance Rain. A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Northwest wind 13 to 15 mph, with gusts as high as 30 mph.
Saturday 2025-10-18, Breezy. Chance Rain then Sunny. A 30 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 55. Breezy, with a northwest wind 16 to 26 mph, with gusts as high as 40 mph.
Saturday Night 2025-10-18, Clear. Clear, with a low around 29. Northwest wind 9 to 14 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Sunday 2025-10-19, Sunny. Sunny, with a high near 69. South wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday Night 2025-10-19, Partly Cloudy. Partly cloudy, with a low around 43.
Monday 2025-10-20, Mostly Sunny and Breezy. Mostly sunny, with a high near 65. Breezy.
Monday Night 2025-10-20, Slight Chance Rain. A slight chance of rain. Partly cloudy, with a low around 36.- Tuesday 2025-10-21, Sunny. Sunny, with a high near 59.
- Tuesday Night 2025-10-21, Partly Cloudy. Partly cloudy, with a low around 35.
- Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 62.