| NWS Forecast for: Mammoth Hot Springs WY Issued by: National Weather Service Riverton, WY Last Update: 5:43 pm MDT Jul 12, 2025 | |
| Tonight: Clear, with a low around 53. Northwest wind around 6 mph becoming calm in the evening. Sunday: Sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon. Sunday Night: Partly cloudy, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening. Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Calm wind becoming west 5 to 9 mph in the afternoon. Monday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 54. West southwest wind 5 to 8 mph becoming north northeast in the evening. Chance of precipitation is 30%. Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 81. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind 7 to 9 mph. Wednesday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 77. Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 47. Thursday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 50. Friday: A slight chance of showers and thunderstorms. Sunny, with a high near 85. Friday Night: Partly cloudy, with a low around 51. Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 87. | |
| Mammoth Hot Springs WY 44.98°N 110.69°W (Elev. 5745 ft) | |
Visit your local NWS office at: https://www.weather.gov/riw |