WY, MT, ID travel planner

Yellowstone National Park weather and trip conditions

Geysers, wildlife valleys, alpine roads, and fast-changing mountain weather.

Weather cautionThe forecast includes conditions that can affect roads, exposed trails, or visibility.

Live forecast

Next forecast periods

Today 64°F

Chance Rain Showers then Chance Showers And Thunderstorms

3 to 21 mph
Tonight 37°F

Chance Showers And Thunderstorms then Partly Cloudy

2 to 7 mph
Wednesday 70°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

1 to 5 mph
Wednesday Night 40°F

Mostly Clear

1 to 5 mph

Current alerts

Weather alert signal

No active NWS alert was found for this park point during the last update.

Packing signal

What to bring today

  • Water, snacks, offline maps, sun protection, and a small first-aid kit.
  • Pack a warm layer; mornings, overlooks, and windy stops can feel much colder.
  • Add a rain shell and avoid exposed ridges or slot canyons during storm windows.

Seasonal timing

Best time to visit

Late spring through early fall is the easiest window for road access, with winter rewarding prepared snow travelers.

Weather source station area: West Yellowstone.

Do not miss

Popular stops

  • Old Faithful
  • Grand Prismatic Spring
  • Lamar Valley
  • Grand Canyon of the Yellowstone
Data sources

Weather and alerts come from the National Weather Service API. This page is automatically rebuilt every six hours and should be checked against official park notices before travel.