Riverton, Wyoming – Warm temperatures and possible thunderstorms could disrupt travel and outdoor plans across Central Wyoming Tuesday, as the summer pattern shifts.
According to the National Weather Service in Riverton, afternoon and evening thunderstorms may develop on June 24 across areas east of the Continental Divide, especially in Natrona and Johnson Counties. While chances remain low at 20%, some cells could become strong, bringing gusty winds and localized lightning. Daytime highs will climb into the mid-80s, reaching 85°F in Riverton by early afternoon.
Drivers along US-26 and I-25 should monitor for changing weather conditions Tuesday after 2 p.m., especially near Casper and Riverton. If thunder roars, head indoors — lightning remains a threat even with limited rain. Outdoor workers and hikers in the Wind River Mountains should remain alert through Wednesday.
The storm window narrows late Tuesday evening as skies clear and winds shift slightly. Wednesday looks mostly dry, with Riverton again reaching 85°F and only a slight chance of isolated showers in the afternoon.
Five-Day Weather Outlook (Riverton, WY)
- Monday (June 23): Sunny, high 77°F
- Tuesday (June 24): Mostly sunny, slight PM t-storms, high 85°F
- Wednesday (June 25): Sunny, 20% PM showers, high 85°F
- Thursday (June 26): Sunny, hot, high 90°F
- Friday (June 27): Sunny and warmer, high 94°F
- Saturday (June 28): Partly cloudy, high 88°F
Expect continued heat through the weekend with little rainfall. Stay hydrated, limit outdoor activity in peak heat, and monitor for any thunderstorm advisories through Wednesday.
