NWS Forecast for: Yellowstone National Park WY Issued by: National Weather Service Riverton, WY Last Update: 4:47 pm MST Jan 19, 2026

Tonight: Patchy fog between 10pm and 11pm. Otherwise, partly cloudy, with a low around 1. Wind chill values as low as -10. West southwest wind 5 to 7 mph becoming south after midnight. Tuesday: Isolated snow showers between 1pm and 2pm. Partly sunny, with a high near 22. Wind chill values as low as -5. West wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. Tuesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around -1. Calm wind. Wednesday: Mostly sunny, with a high near 24. Wind chill values as low as zero. Light southwest wind. Wednesday Night: Partly cloudy, with a low around 0. Calm wind. Thursday: Mostly sunny, with a high near 24. Calm wind. Thursday Night: Mostly cloudy, with a low around -1. Calm wind. Friday: Mostly sunny, with a high near 19. Friday Night: Mostly clear, with a low around -5. Saturday: Mostly sunny, with a high near 21. Saturday Night: Partly cloudy, with a low around 2. Sunday: A slight chance of snow showers. Mostly sunny, with a high near 24. Sunday Night: A slight chance of snow showers. Mostly cloudy, with a low around 7. Monday: A slight chance of snow showers. Partly sunny, with a high near 27.

Yellowstone National Park WY  44.57°N 110.5°W (Elev. 8340 ft)

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