Yellowstone National Park, WY
Today’s Forecast:
Today’s Report:
Hiking
Good for hiking. High near 47°F. Light wind (7 mph).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Camping
Excellent for camping. High near 47°F. Light wind (7 mph).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Outdoor Events / Activities
Not Recommended for outdoor events / activities. High near 47°F. Light wind (7 mph). Temperatures outside comfort limits (47°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
About Yellowstone National Park
Yellowstone National Park is a Wyoming destination for a flagship national park with geothermal areas, trails, campgrounds, wildlife country, and winter recreation.
Make the Most of a Yellowstone National Park Day
Match the route, launch, facility, or turnaround time to wind, precipitation, temperature, smoke, water, snow, road access, and daylight. Keep a shorter or more sheltered backup ready.
Weather Tips for Yellowstone National Park
- Check official access notices, alerts, road or trail conditions, fire restrictions, and local forecasts before leaving.
- Turn around before exposed ridges, canyon rims, or open ground become unsafe in lightning, heat, smoke, high wind, or poor visibility.
- Carry layers, water, navigation, sun protection, and seasonal traction or flotation appropriate to the activity.
- Allow extra time for remote roads, mountain passes, wildlife, spring runoff, wildfire smoke, and limited winter daylight.
Nearby Towns and Areas
This page can also be useful when planning outdoor time near:
- West Thumb
- Canyon Village
- Norris
- Grant Village
- Hayden Valley
Plan Around the Conditions
Choose the safest version of a Yellowstone National Park day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.
7-Day Forecast for Yellowstone National Park, WY
Yellowstone National Park Weather by Season
Winter
Winter at Yellowstone National Park can bring snow, ice, strong wind, short daylight, and abrupt road or trail changes. Confirm grooming, avalanche information, ice conditions, and facility operations for the listed winter activities.
Spring
Spring brings freeze-thaw mud, snowmelt, high rivers, cold water, and lingering mountain snow. Lower routes generally open before high passes and backcountry trailheads.
Summer
Summer usually offers the broadest access, but heat, dry air, thunderstorms, lightning, wildfire smoke, reservoir wind, and cold mountain water can alter plans.
Fall
Fall brings cooler air, shorter daylight, hunting-season awareness, and early high-country snow. Confirm seasonal services and allow extra time on remote roads.
Key Climate Data Points
- Annual average temperature: around 34–42°F, colder on plateaus, using the relevant local and elevation context.
- Annual snowfall: commonly 100–200 inches, with deep snow and large elevation differences.
- Warmest months: July and August are normally warmest.
- Coolest months: December and January are typically coolest.
- Wettest season: winter and spring usually provide the greatest mountain precipitation, with local variation.
- Driest season: midsummer is generally driest, despite isolated thunderstorms.
- Best outdoor window: June through September for broad warm-season access, with midwinter best at established winter destinations.