Wyoming by month · 5 of 12
Wyoming RV rental in May
May sits outside Wyoming's cited best window (June to September) — shoulder conditions.
Yellowstone and Grand Teton roads are open and wildlife viewing peaks; winters are long and cold with most roads closed.
PickRV
Published by PickRV
May on the ground
Weather & conditions
Spring reaches the valleys; snow rules the heights. Typical 67°F high / 38°F low.
May opens Yellowstone's summer season mid-month — baby bison and bears with cubs steal every show, and the crowds are still weeks away.
What to do in May
- Yellowstone's opening weeks of the season
- Baby-wildlife watching in Lamar and Hayden valleys
- Grand Teton scenic drives under snowy peaks
Best-fit rigs: Motorhome · Truck or van
Know before you go
Many park campgrounds open late May or June — match reservations to actual opening dates.
Bears are active; carry spray. Afternoon thunderstorms bring lightning in the mountains. Wildfires can close roads.
From the verified event registry
May events in Wyoming
Trip notes
May tips for Wyoming
Layer up: shoulder-pattern days can swing from a chilly dawn to t-shirt warmth by afternoon.
Pack rain gear and leveling mats for soft or wet sites.
Carry a weather radio and check forecasts daily — transitional months turn fast.
Shoulder-season tip for Wyoming: Late May and early October are beautiful in lower areas but high country can still have snow and many services close.
Keep planning
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