RIVERTON, Wyo. – Thunderstorms are set to build across central Wyoming Tuesday, bringing a wet and unsettled stretch into Labor Day weekend. Drivers along US-26 and I-25 should prepare for reduced visibility and slick road conditions during evening commutes.
According to the National Weather Service in Riverton, rain showers and isolated storms will develop Tuesday afternoon, with activity spreading through Fremont, Natrona, and Johnson counties. Storm chances climb midweek, peaking Wednesday and Thursday, before tapering slightly into the holiday weekend. Residents should secure outdoor plans and keep devices charged in case of brief power interruptions.
Showers will become widespread Wednesday with a 70% chance of rainfall and thunder in Riverton, Casper, and Rock Springs. Gusty winds could accompany stronger storms, making high-profile travel difficult across open stretches of I-25 and US-20. By Thursday, showers ease slightly but continue to pose travel disruptions.
Labor Day weekend will not be completely washed out. Friday and Saturday bring scattered showers, but breaks of sunshine are likely. Sunday appears drier, offering the best chance for outdoor gatherings, parades, and lake trips around Boysen Reservoir. Still, keep rain gear handy as lingering clouds remain a possibility.
Stay alert for changing road conditions, especially on mountain passes west of the Divide. More advisories may be issued as the weekend nears.
Five Day Forecast for Riverton, WY
- Tuesday: 40% chance of showers and storms, high near 84.
- Wednesday: Showers likely, 70% chance, high near 77.
- Thursday: 30% chance of showers, high near 81.
- Friday: Scattered storms, high near 80.
- Saturday: Chance of storms, partly sunny, high near 80.
