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Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

33°F

1°C

Humidity 69%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 14 Apr 12:15 AM MDT
Extended Forecast for

Mammoth WY

Winter Storm Watch April 15, 06:00pm until April 17, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. South wind 3 to 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Light south wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 29 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. South wind 9 to 14 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers before 9am, then rain showers likely between 9am and 3pm, then rain likely, possibly mixed with snow showers after 3pm. Snow level 5800 feet rising to 7200 feet in the afternoon. Partly sunny, with a high near 50. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 50 °F

    Breezy.
    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow showers, becoming all snow after 3am. Some thunder is also possible. Snow level 7300 feet lowering to 5800 feet after midnight . Low around 33. Breezy, with a south southwest wind 11 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 41. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    High: 41 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. North northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 22 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely, mainly after noon. Partly sunny, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. South wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 52. Light south wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 35. South wind 9 to 14 mph, with gusts as high as 30 mph.
Wednesday
A chance of snow showers before 9am, then rain showers likely between 9am and 3pm, then rain likely, possibly mixed with snow showers after 3pm. Snow level 5800 feet rising to 7200 feet in the afternoon. Partly sunny, with a high near 50. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain, possibly mixed with snow showers, becoming all snow after 3am. Some thunder is also possible. Snow level 7300 feet lowering to 5800 feet after midnight . Low around 33. Breezy, with a south southwest wind 11 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Snow showers. Some thunder is also possible. High near 41. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. North northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday
Snow showers likely, mainly after noon. Partly sunny, with a high near 40. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 21.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 35.
Monday
A slight chance of showers. Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
11:47 pm MDT Apr 13, 2026
Forecast Valid:
1am MDT Apr 14, 2026-6pm MDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation