Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains
An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >
Hazardous Weather Conditions
Current conditions at
MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)
Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.NA
48°F
9°C
| Humidity | 32% |
| Wind Speed | S 7 MPH |
| Barometer | NA |
| Dewpoint | 20°F (-7°C) |
| Visibility | NA |
| Wind Chill | 45°F (7°C) |
| Last update | 20 Mar 04:15 AM MDT |
Extended Forecast for
Mammoth WY
Today
High: 67 °F
Mostly Sunny
Tonight
Low: 44 °F
Partly Cloudy
Saturday
High: 63 °F
Mostly Sunny
then Slight
Chance
ShowersSaturday Night
Low: 35 °F
Chance
ShowersSunday
High: 56 °F
Sunny
Sunday Night
Low: 35 °F
Partly Cloudy
Monday
High: 57 °F
Partly Sunny
Monday Night
Low: 36 °F
Mostly Cloudy
Tuesday
High: 60 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 67. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 44. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers after noon. Partly sunny, with a high near 63. South wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
A 40 percent chance of showers, mainly before midnight. Snow level 9700 feet lowering to 6700 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 56. West southwest wind 5 to 11 mph.
Sunday Night
Partly cloudy, with a low around 35. South wind 6 to 11 mph.
Monday
Partly sunny, with a high near 57. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
A slight chance of showers. Sunny, with a high near 64. Breezy.
Wednesday Night
A slight chance of rain and snow showers. Snow level 8900 feet lowering to 6700 feet after midnight . Partly cloudy, with a low around 34.
Thursday
A slight chance of rain and snow showers. Sunny, with a high near 50.
Additional Forecasts and Information
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Point Forecast:
Mammoth WY
44.98°N 110.69°W (Elev. 5745 ft)
44.98°N 110.69°W (Elev. 5745 ft)
4:01 am MDT Mar 20, 2026
4am MDT Mar 20, 2026-6pm MDT Mar 26, 2026
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