| NWS Forecast for: 18 Miles SE Big Sky MT Issued by: National Weather Service Riverton, WY Last Update: 9:31 am MDT Jul 14, 2026 |  |
| Today: Isolated showers and thunderstorms after noon. Increasing clouds, with a high near 88. Light west southwest wind becoming south southwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%. Tonight: Isolated showers and thunderstorms before 10pm. Partly cloudy, with a low around 55. West southwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%. Wednesday: Scattered showers and thunderstorms, mainly after noon. Partly sunny, with a high near 80. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 50%. Wednesday Night: Scattered showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 53. East northeast wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 40%. Thursday: A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon. Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. North northeast wind around 6 mph becoming calm in the evening. Friday: Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%. Friday Night: Showers likely and possibly a thunderstorm before midnight. Partly cloudy, with a low around 55. Chance of precipitation is 60%. Saturday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Saturday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54. Sunday: A chance of showers and thunderstorms. Sunny, with a high near 82. Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 81. | |
| 18 Miles SE Big Sky MT 45.05°N 111.13°W (Elev. 6916 ft) | |
Visit your local NWS office at: https://www.weather.gov/riw |