| NWS Forecast for: Mammoth WY Issued by: National Weather Service Riverton, WY Last Update: 2:31 am MDT Oct 16, 2026 |  |
| Overnight: Partly cloudy, with a low around 28. South southeast wind around 6 mph. Friday: Sunny, with a high near 58. South wind 5 to 7 mph. Friday Night: Partly cloudy, with a low around 30. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Saturday: Mostly sunny, with a high near 58. Southeast wind 8 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Saturday Night: Partly cloudy, with a low around 32. South wind 7 to 10 mph. Sunday: Sunny, with a high near 57. South southeast wind 5 to 7 mph becoming light and variable. Sunday Night: Mostly clear, with a low around 32. South southeast wind 5 to 9 mph. Monday: Sunny, with a high near 58. Monday Night: Mostly clear, with a low around 34. Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 56. Tuesday Night: A chance of showers. Mostly cloudy, with a low around 38. Wednesday: A slight chance of showers. Mostly sunny, with a high near 55. Wednesday Night: A chance of showers. Partly cloudy, with a low around 37. Thursday: A chance of showers. Mostly sunny, with a high near 53. | |
| Mammoth WY 44.98°N 110.69°W (Elev. 5745 ft) | |
Visit your local NWS office at: https://www.weather.gov/riw |
