Weather forecast for: Hays MT
Last Update: 4:47 am MDT Oct 12, 2026
Columbus Day: A 50 percent chance of snow, mainly before 9am. Cloudy, with a high near 34. North wind 5 to 8 mph becoming calm in the afternoon. Total daytime snow accumulation of less than a half inch possible.
Tonight: Mostly cloudy, with a low around 25. Calm wind becoming south 5 to 7 mph in the evening.
Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 41. Light west wind.
Tuesday Night: Mostly clear, with a low around 29. Light west southwest wind.
Wednesday: Sunny, with a high near 49. South southwest wind 3 to 5 mph.
Wednesday Night: Partly cloudy, with a low around 36. West southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Thursday: Sunny, with a high near 50. Northwest wind 6 to 10 mph.
Thursday Night: Mostly clear, with a low around 35. Light and variable wind becoming south southeast 11 to 16 mph in the evening. Winds could gust as high as 25 mph.
Friday: Sunny, with a high near 60.
Friday Night: Mostly clear, with a low around 46.
Saturday: Mostly sunny, with a high near 65.
Saturday Night: Partly cloudy, with a low around 47.
Sunday: Sunny, with a high near 61.