Hazardous Weather Conditions
Current conditions at
MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)
Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.NA
23°F
-5°C
| Humidity | 79% |
| Wind Speed | W 1 MPH |
| Barometer | NA |
| Dewpoint | 18°F (-8°C) |
| Visibility | NA |
| Last update | 16 Apr 07:15 PM MDT |
Extended Forecast for
Mammoth WY
Winter Storm Warning April 16, 08:07pm until April 17, 06:00am
NOW until 6:00am Fri

Winter Storm Warning
Tonight

Low: 22 °F
Chance Snow
ShowersFriday
High: 32 °F
Chance Snow
Showers then
Snow Showers
LikelyFriday Night
Low: 17 °F
Slight Chance
Snow Showers
then Partly
CloudySaturday

High: 49 °F
Sunny
Saturday Night

Low: 26 °F
Mostly Clear
Sunday

High: 59 °F
Sunny
Sunday Night

Low: 35 °F
Mostly Cloudy
Monday

High: 66 °F
Sunny
Detailed Forecast
Tonight
A chance of snow showers before 11pm, then a slight chance of snow showers after 4am. Mostly cloudy, with a low around 22. Northwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after 3pm. Some thunder is also possible. Partly sunny, with a high near 32. Light and variable wind becoming north northwest 8 to 13 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 17. Northwest wind 5 to 8 mph becoming calm.
Saturday
Sunny, with a high near 49. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 26. Southwest wind 6 to 10 mph becoming south southeast after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 59. South southeast wind around 7 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)
6:02 pm MDT Apr 16, 2026
8pm MDT Apr 16, 2026-6pm MDT Apr 23, 2026



