On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Afternoon and Evening Showers and Thunderstorms Continue Across Much of the Southwest

An active monsoon weather pattern will continue through Saturday across much of the southwestern U.S. Scattered afternoon and evening showers and thunderstorms will bring locally excessive rainfall. Flash Flood Watches remain in effect for parts of the region. Some normally dry washes may have rapidly flowing water. Remember when encountering flooded roads: Turn around, don't drown!
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Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

81°F

27°C

Humidity 13%
Wind Speed NW 10 G 14 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Heat Index79°F (26°C)
Last update 31 Jul 7:15 pm MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly clear, with a low around 51. North northwest wind 5 to 9 mph becoming light and variable.

    Mostly Clear

    Low: 51 °F

  • Saturday

    Saturday: Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    Sunny

    High: 86 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 52. West northwest wind 5 to 8 mph becoming south after midnight.

    Mostly Clear

    Low: 52 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 88. South southeast wind 5 to 7 mph becoming west northwest in the afternoon.

    Mostly Sunny

    High: 88 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 55. North wind around 6 mph becoming light and variable  after midnight.

    Mostly Cloudy

    Low: 55 °F

  • Monday

    Monday: Scattered showers and thunderstorms after noon. Some of the storms could produce gusty winds.  Partly sunny, with a high near 81. East southeast wind 5 to 7 mph becoming southwest in the afternoon.  Chance of precipitation is 30%.

    Mostly Sunny
    then
    Scattered
    T-storms

    High: 81 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Some of the storms could produce gusty winds.  Mostly cloudy, with a low around 52. South wind 5 to 7 mph.

    Slight Chance
    T-storms

    Low: 52 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 77.

    Partly Sunny

    High: 77 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after midnight. Some of the storms could produce gusty winds.  Mostly cloudy, with a low around 51.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 51 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 51. North northwest wind 5 to 9 mph becoming light and variable.
Saturday
Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 52. West northwest wind 5 to 8 mph becoming south after midnight.
Sunday
Mostly sunny, with a high near 88. South southeast wind 5 to 7 mph becoming west northwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 55. North wind around 6 mph becoming light and variable after midnight.
Monday
Scattered showers and thunderstorms after noon. Some of the storms could produce gusty winds. Partly sunny, with a high near 81. East southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms. Some of the storms could produce gusty winds. Mostly cloudy, with a low around 52. South wind 5 to 7 mph.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
A 20 percent chance of showers and thunderstorms after midnight. Some of the storms could produce gusty winds. Mostly cloudy, with a low around 51.
Wednesday
A 20 percent chance of showers and thunderstorms. Some of the storms could produce gusty winds. Partly sunny, with a high near 76.
Wednesday Night
A slight chance of showers and thunderstorms. Some of the storms could produce gusty winds. Mostly cloudy, with a low around 48.
Thursday
A slight chance of showers and thunderstorms. Some of the storms could produce gusty winds. Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 77.
  Click Map For Forecast
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
4:57 pm MDT Jul 31, 2015
7pm MDT Jul 31, 2015-6pm MDT Aug 7, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database