| NWS Forecast for: Mammoth WY Issued by: National Weather Service Riverton, WY Last Update: 3:43 pm MDT Jul 13, 2025 | |
| This Afternoon: Sunny, with a high near 89. West northwest wind around 9 mph. Tonight: Mostly clear, with a low around 55. Northwest wind 5 to 9 mph becoming calm after midnight. Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 90. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Monday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming light and variable after midnight. Tuesday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 80. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 49. North wind 6 to 8 mph. Chance of precipitation is 70%. Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. North northwest wind 5 to 8 mph. Wednesday Night: Mostly clear, with a low around 47. Thursday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Thursday Night: Mostly clear, with a low around 49. Friday: A slight chance of showers and thunderstorms. Sunny, with a high near 85. Friday Night: Partly cloudy, with a low around 52. Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 86. | |
| Mammoth WY 44.98°N 110.69°W (Elev. 5745 ft) | |
Visit your local NWS office at: https://www.weather.gov/riw |