Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Storm system to bring heavy rainfall and the potential for flash flooding over the southern Mid Atlantic and Southeast U.S.

A slow moving low pressure system will bring the threat for heavy rainfall, flash flooding, and a few strong to severe thunderstorms into Tuesday. The main threat areas include the southern Mid Atlantic and Southeast U.S. Excessive runoff may lead to flooding of low lying areas, rivers, and streams. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

Lat: 44.97722°NLon: 110.69528°WElev: 6299ft.

NA

34°F

1°C

Humidity 95%
Wind Speed W 1 G 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 23 Apr 9:15 pm MDT
Extended Forecast for

Mammoth WY

Winter Weather Advisory April 24, 09:00am until April 25, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Scattered rain and snow showers, mainly before 5am.  Mostly cloudy, with a low around 33. Light southeast wind.  Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

    Scattered
    Rain/Snow

    Low: 33 °F

  • Monday

    Monday: A slight chance of snow showers before 9am, then scattered rain and snow showers between 9am and noon, then rain showers likely after noon. Some thunder is also possible.  Mostly cloudy, with a high near 46. Calm wind becoming southwest 5 to 9 mph in the morning.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Scattered
    Rain/Snow
    then Showers
    Likely

    High: 46 °F

  • Monday
    Night

    Monday Night: Rain showers likely before midnight, then rain and snow showers likely. Some thunder is also possible.  Cloudy, with a low around 32. Calm wind becoming west northwest 5 to 9 mph after midnight.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Showers
    Likely then
    Rain/Snow
    Likely

    Low: 32 °F

  • Tuesday

    Tuesday: Scattered rain and snow showers before noon, then scattered rain showers.  Cloudy, with a high near 46. Northwest wind 9 to 14 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Scattered
    Rain/Snow
    then
    Scattered
    Showers

    High: 46 °F

  • Tuesday
    Night

    Tuesday Night: Scattered rain showers before midnight, then scattered rain and snow showers.  Cloudy, with a low around 30. West northwest wind 5 to 8 mph becoming light and variable.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Scattered
    Showers then
    Scattered
    Rain/Snow

    Low: 30 °F

  • Wednesday

    Wednesday: Scattered rain and snow showers before noon, then scattered rain showers.  Cloudy, with a high near 45. South southwest wind 6 to 10 mph.  Chance of precipitation is 50%.

    Scattered
    Rain/Snow
    then
    Scattered
    Showers

    High: 45 °F

  • Wednesday
    Night

    Wednesday Night: A chance of rain showers before midnight, then a chance of snow showers.  Cloudy, with a low around 31. West southwest wind 5 to 7 mph.  Chance of precipitation is 50%.

    Chance
    Showers then
    Chance Snow
    Showers

    Low: 31 °F

  • Thursday

    Thursday: A chance of snow showers before noon, then a chance of rain showers. Some thunder is also possible.  Cloudy, with a high near 42. Chance of precipitation is 30%.

    Chance Snow
    Showers then
    Chance
    Showers

    High: 42 °F

  • Thursday
    Night

    Thursday Night: A slight chance of rain and snow showers before midnight, then a slight chance of snow showers.  Cloudy, with a low around 30. Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

    Low: 30 °F

Detailed Forecast

Tonight
Scattered rain and snow showers, mainly before 5am. Mostly cloudy, with a low around 33. Light southeast wind. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers before 9am, then scattered rain and snow showers between 9am and noon, then rain showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 46. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Rain showers likely before midnight, then rain and snow showers likely. Some thunder is also possible. Cloudy, with a low around 32. Calm wind becoming west northwest 5 to 9 mph after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Tuesday
Scattered rain and snow showers before noon, then scattered rain showers. Cloudy, with a high near 46. Northwest wind 9 to 14 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday Night
Scattered rain showers before midnight, then scattered rain and snow showers. Cloudy, with a low around 30. West northwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
Scattered rain and snow showers before noon, then scattered rain showers. Cloudy, with a high near 45. South southwest wind 6 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of rain showers before midnight, then a chance of snow showers. Cloudy, with a low around 31. West southwest wind 5 to 7 mph. Chance of precipitation is 50%.
Thursday
A chance of snow showers before noon, then a chance of rain showers. Some thunder is also possible. Cloudy, with a high near 42. Chance of precipitation is 30%.
Thursday Night
A slight chance of rain and snow showers before midnight, then a slight chance of snow showers. Cloudy, with a low around 30. Chance of precipitation is 20%.
Friday
A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 42.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Partly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 49.
Click Map For Forecast
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
7:29 pm MDT Apr 23, 2017
10pm MDT Apr 23, 2017-6pm MDT Apr 30, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database