YellowstoneCast

What's the weather really doing out there?

YellowstoneCast puts every public weather station in the Greater Yellowstone area on one map, right next to conditions reported by people on the ground.

Coming soon to the App Store Free for iPhone. Now in TestFlight beta.
YellowstoneCast app icon: a thermometer in front of mountains and the sun

One map for the whole region

Weather stations

Current temperature from National Weather Service stations and NRCS SNOTEL mountain sites, refreshed every few minutes.

Conditions reports

Temperature, wind, sky and up to three photos from people out on the trail, the road or the river. Reports fade from red to gray as they age.

Built for no signal

Download maps for offline use. Reports you make without service are saved and sent automatically once you're back in range.

Where the data comes from

  • National Weather ServiceAirport and partner station observations from api.weather.gov. Public domain.
  • NRCS SNOTELMountain snow and temperature sites from the USDA Natural Resources Conservation Service. Public domain.
  • Open-MeteoForecast model conditions. Weather data by Open-Meteo.com, licensed CC BY 4.0.
  • Mapbox and OpenStreetMapBase maps and offline tiles. © Mapbox © OpenStreetMap contributors.
  • YellowstoneCast usersCommunity conditions reports. Shared by users and not verified.

YellowstoneCast is for general information. Mountain weather changes fast, stations can be offline and reports are not verified. Always check official forecasts and park alerts before heading out, and use your own judgment in the backcountry.