Riverton, Wyo. – Thunderstorms could rattle parts of Fremont County by Tuesday afternoon as a summer system brings a 30% chance of showers and gusty winds to Riverton and surrounding highways, including US-26. Wind gusts could hit 20 mph by mid-afternoon, creating visibility issues and elevated fire concerns in dry areas.
According to the National Weather Service in Riverton, scattered thunderstorms are possible after 3 p.m. Tuesday, with daytime highs reaching near 90°F. Winds will shift from the southeast before becoming breezy out of the west. Tuesday night carries a 50% chance of more thunderstorms before 3 a.m., especially near the Wind River Basin, with gusts as high as 21 mph.
By Wednesday, conditions shift dramatically. Breezy east winds return, and temperatures drop to a high of 79°F — over 10 degrees cooler than Monday. A slight chance of thunderstorms lingers into the afternoon, followed by mostly clear skies Wednesday night and a low around 51°F.
Five-Day Forecast for Riverton (July 15–20):
- Tuesday: 30% chance of p.m. thunderstorms, high 90°F
- Wednesday: Slight storm chance, breezy, high 79°F
- Thursday: Sunny and warmer, high 92°F
- Friday: Clear and hot, high 93°F
- Saturday–Sunday: Sunny with highs in the mid-90s, dry weekend expected
Prepare now for brief delays or downed limbs from gusty winds Tuesday and stay alert for midweek travel impacts. Summer weather alert remains in effect as heat intensifies again by Thursday.
