Hazardous Weather Conditions
Current conditions at
MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)
Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.NA
68°F
20°C
| Humidity | 16% |
| Wind Speed | SW 9 MPH |
| Barometer | NA |
| Dewpoint | 20°F (-7°C) |
| Visibility | NA |
| Last update | 21 Apr 01:15 PM MDT |
Extended Forecast for
Mammoth WY
Winter Weather Advisory April 22, 12:00pm until April 23, 11:00pm
This Afternoon

High: 70 °F
Mostly Cloudy
Tonight

Low: 42 °F
Isolated
ShowersWednesday
High: 53 °F
Breezy.
Scattered
Showers then
Showers
LikelyWednesday Night

Low: 35 °F
Rain/Snow and
BreezyThursday

High: 46 °F
Snow Showers
Thursday Night

Low: 24 °F
Snow Showers
Friday

High: 38 °F
Snow Showers
Friday Night

Low: 20 °F
Chance Snow
ShowersSaturday

High: 44 °F
Chance Snow
Showers
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 70. South wind 11 to 14 mph, with gusts as high as 20 mph.
Tonight
Isolated showers between midnight and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. South southeast wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 53. Breezy, with a southeast wind 8 to 13 mph becoming south southwest 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%.
Wednesday Night
Rain and snow showers, becoming all snow after 3am. Some thunder is also possible. Snow level 6900 feet lowering to 5700 feet after midnight . Low around 35. Breezy, with a southwest wind 9 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers. Some thunder is also possible. High near 46. West wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow showers. Some thunder is also possible. Low around 24. North northwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Friday
Snow showers. Some thunder is also possible. High near 38. North northwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 20.
Saturday
A 30 percent chance of snow showers, mainly after noon. Mostly sunny, with a high near 44.
Saturday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 24.
Sunday
A chance of snow showers. Partly sunny, with a high near 48.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 28.
Monday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 50.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mammoth WY
44.98°N 110.69°W (Elev. 5745 ft)
44.98°N 110.69°W (Elev. 5745 ft)
2:10 pm MDT Apr 21, 2026
2pm MDT Apr 21, 2026-6pm MDT Apr 27, 2026



