Hazardous Weather Conditions
Current conditions at
MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)
Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.NA
21°F
-6°C
| Humidity | 89% |
| Wind Speed | WSW 0 MPH |
| Barometer | NA |
| Dewpoint | 18°F (-8°C) |
| Visibility | NA |
| Last update | 17 Apr 12:15 AM MDT |
Extended Forecast for
Mammoth WY
Winter Storm Warning April 17, 12:33am until April 17, 06:00am
NOW until 6:00am Fri

Winter Storm Warning
Overnight

Low: 18 °F
Chance Snow
ShowersFriday

High: 38 °F
Chance Snow
ShowersFriday Night
Low: 18 °F
Chance Snow
Showers then
Partly CloudySaturday

High: 49 °F
Sunny
Saturday Night

Low: 26 °F
Mostly Clear
Sunday

High: 60 °F
Sunny
Sunday Night

Low: 35 °F
Mostly Cloudy
Monday

High: 66 °F
Sunny
Detailed Forecast
Overnight
A chance of snow showers between 2am and 3am. Mostly cloudy, with a low around 18. West northwest wind around 6 mph becoming southwest. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Partly sunny, with a high near 38. South southwest wind 5 to 11 mph becoming north northwest in the morning. New snow accumulation of less than one inch possible.
Friday Night
A 30 percent chance of snow showers, mainly before 10pm. Partly cloudy, with a low around 18. Northwest wind 5 to 9 mph becoming light and variable. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 49. Southwest wind 5 to 11 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 26. South wind 6 to 11 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 60. Southwest wind around 7 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 35. South southeast wind around 7 mph.
Monday
Sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Sunny, with a high near 69.
Tuesday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 42.
Wednesday
A chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 65.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 40.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 56.
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)
11:02 pm MDT Apr 16, 2026
12am MDT Apr 17, 2026-6pm MDT Apr 23, 2026



