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

Isolated Severe Thunderstorms and Heavy Rain Possible from Central Plains to Interior Northeast

A series of weather systems will bring showers and thunderstorms from the central and southern Plains to the Interior Northeast through midweek. A few of these storms could be severe and contain heavy rain that could lead to isolated flash flooding. Additional severe thunderstorms and heavy rain are expected in southwestern Texas on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

51°F

11°C

Humidity 49%
Wind Speed WSW 3 G 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 29 May 11:15 pm MDT
Extended Forecast for

8 Miles W Mammoth Hot Springs WY

  • Overnight

    Overnight: Partly cloudy, with a low around 34. Light east southeast wind.

    Partly Cloudy

    Low: 34 °F

  • Tuesday

    Tuesday: Isolated showers between 9am and noon, then isolated showers and thunderstorms after noon. Some of the storms could produce gusty winds.  Partly sunny, with a high near 51. Light south wind becoming southwest 8 to 13 mph in the morning.  Chance of precipitation is 20%.

    Isolated
    Showers then
    Isolated
    T-storms

    High: 51 °F

  • Tuesday
    Night

    Tuesday Night: Isolated showers and thunderstorms before 9pm, then isolated showers between 9pm and midnight. Some of the storms could produce gusty winds.  Partly cloudy, with a low around 35. South wind around 7 mph.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Partly Cloudy

    Low: 35 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Some of the storms could produce gusty winds.  Mostly sunny, with a high near 53. Breezy, with a south southwest wind 6 to 15 mph, with gusts as high as 21 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

    High: 53 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Some of the storms could produce gusty winds.  Partly cloudy, with a low around 38. South wind 8 to 13 mph.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 38 °F

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Some of the storms could produce small hail and gusty winds.  Partly sunny, with a high near 51. Breezy, with a south southwest wind 8 to 16 mph, with gusts as high as 23 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

    High: 51 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms. Some of the storms could produce small hail and gusty winds.  Mostly cloudy, with a low around 37. South southwest wind 6 to 11 mph.  Chance of precipitation is 40%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 37 °F

  • Friday

    Friday: Scattered showers and thunderstorms.  Partly sunny, with a high near 48. Chance of precipitation is 40%.

    Scattered
    Showers then
    Scattered
    T-storms

    High: 48 °F

  • Friday
    Night

    Friday Night: Scattered rain showers before midnight, then a slight chance of snow showers. Some thunder is also possible.  Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

    Scattered
    T-storms then
    Isolated Snow
    Showers

    Low: 33 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. Light east southeast wind.
Tuesday
Isolated showers between 9am and noon, then isolated showers and thunderstorms after noon. Some of the storms could produce gusty winds. Partly sunny, with a high near 51. Light south wind becoming southwest 8 to 13 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Isolated showers and thunderstorms before 9pm, then isolated showers between 9pm and midnight. Some of the storms could produce gusty winds. Partly cloudy, with a low around 35. South wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Some of the storms could produce gusty winds. Mostly sunny, with a high near 53. Breezy, with a south southwest wind 6 to 15 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Some of the storms could produce gusty winds. Partly cloudy, with a low around 38. South wind 8 to 13 mph.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Some of the storms could produce small hail and gusty winds. Partly sunny, with a high near 51. Breezy, with a south southwest wind 8 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms. Some of the storms could produce small hail and gusty winds. Mostly cloudy, with a low around 37. South southwest wind 6 to 11 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms. Partly sunny, with a high near 48. Chance of precipitation is 40%.
Friday Night
Scattered rain showers before midnight, then a slight chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Isolated showers and thunderstorms. Mostly sunny, with a high near 50.
Sunday Night
A slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 35.
Monday
Isolated showers and thunderstorms. Partly sunny, with a high near 48.
Click Map For Forecast
Point Forecast:
8 Miles W Mammoth Hot Springs WY
 44.95°N 110.87°W (Elev. 9350 ft)
11:16 pm MDT May 29, 2017
12am MDT May 30, 2017-6pm MDT Jun 4, 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