| NWS Forecast for: Riverton WY Issued by: National Weather Service Riverton, WY Last Update: 8:48 am MDT May 21, 2026 |  |
| Today: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a temperature falling to around 43 by 3pm. Breezy, with a north wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. Tonight: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a north wind 11 to 16 mph becoming light and variable. Winds could gust as high as 24 mph. Friday: Mostly sunny, with a high near 63. Calm wind becoming southeast 5 to 7 mph in the afternoon. Friday Night: Partly cloudy, with a low around 37. Southeast wind 5 to 8 mph becoming west southwest after midnight. Saturday: Sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon. Saturday Night: Mostly clear, with a low around 42. West southwest wind 6 to 9 mph. Sunday: Sunny, with a high near 82. Breezy, with a light west southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph. Sunday Night: Mostly clear, with a low around 45. Memorial Day: Sunny, with a high near 84. Monday Night: Partly cloudy, with a low around 46. Tuesday: Mostly sunny, with a high near 81. Breezy. Tuesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Breezy. Wednesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. Windy. | |
| Riverton WY 43.04°N 108.41°W (Elev. 5046 ft) | |
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