Hazardous Weather Conditions
Current conditions at
MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)
Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.NA
42°F
6°C
| Humidity | 67% |
| Wind Speed | S 16 MPH |
| Barometer | NA |
| Dewpoint | 32°F (0°C) |
| Visibility | NA |
| Wind Chill | 34°F (1°C) |
| Last update | 15 Apr 02:15 PM MDT |
Extended Forecast for
Mammoth WY
Winter Storm Warning April 15, 06:00pm until April 17, 06:00am
This Afternoon

High: 50 °F
Rain/Snow and
BreezyTonight

Low: 30 °F
Rain/Snow and
BreezyThursday

High: 38 °F
Snow Showers
Thursday Night
Low: 18 °F
Snow Showers
Likely then
Slight Chance
Snow ShowersFriday
High: 39 °F
Chance Snow
Showers then
Snow Showers
LikelyFriday Night
Low: 19 °F
Slight Chance
Snow Showers
then Partly
CloudySaturday

High: 49 °F
Sunny
Saturday Night

Low: 27 °F
Mostly Clear
Sunday

High: 59 °F
Sunny
Detailed Forecast
This Afternoon
Rain showers likely before 4pm, then rain, possibly mixed with snow showers. High near 50. Breezy, with a south southwest wind around 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Snow showers, possibly mixed with rain, becoming all snow after 2am. Some thunder is also possible. Snow level 7600 feet lowering to 5700 feet after midnight . Low around 30. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 38 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 38. Northwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow showers likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 18. West northwest wind 5 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 39. Northwest wind 5 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19. West northwest wind 5 to 9 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 49. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 68.
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)
2:48 pm MDT Apr 15, 2026
3pm MDT Apr 15, 2026-6pm MDT Apr 21, 2026



