Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

48°F

9°C

Humidity 38%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 08 Oct 02:15 AM MDT
Extended Forecast for

3 Miles WNW Mammoth Hot Springs WY

  • Overnight

    Overnight: Mostly clear, with a low around 41. Southwest wind around 6 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Southwest wind 8 to 14 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 62. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight.  Partly cloudy, with a low around 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 36 mph.

    Low: 45 °F

    Breezy.
    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 51. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%.

    High: 51 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Rain and snow showers. Some thunder is also possible.  Snow level 10000 feet lowering to 9100 feet after midnight . Low around 31. South southwest wind around 11 mph becoming north after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 100%.

    Low: 31 °F

    Rain/Snow

  • Sunday

    Sunday: Snow showers, possibly mixed with rain. Some thunder is also possible.  Snow level 8700 feet lowering to 8100 feet in the afternoon . High near 36. Chance of precipitation is 100%.

    High: 36 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers.  Low around 27. Chance of precipitation is 90%.

    Low: 27 °F

    Rain/Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 41. Southwest wind around 6 mph.
Thursday
Sunny, with a high near 64. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Southwest wind 8 to 14 mph.
Friday
Sunny, with a high near 62. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 36 mph.
Saturday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 51. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Saturday Night
Rain and snow showers. Some thunder is also possible. Snow level 10000 feet lowering to 9100 feet after midnight . Low around 31. South southwest wind around 11 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Sunday
Snow showers, possibly mixed with rain. Some thunder is also possible. Snow level 8700 feet lowering to 8100 feet in the afternoon . High near 36. Chance of precipitation is 100%.
Sunday Night
Rain and snow showers. Low around 27. Chance of precipitation is 90%.
Columbus Day
Rain and snow showers likely before 9am, then snow showers likely between 9am and noon, then a chance of rain and snow showers after noon. Mostly cloudy, with a high near 37. Chance of precipitation is 60%.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 32.
Tuesday
A slight chance of rain and snow showers. Snow level rising to 9200 feet in the afternoon. Mostly sunny, with a high near 47.
Tuesday Night
A chance of rain and snow showers. Snow level 9300 feet lowering to 8400 feet after midnight . Partly cloudy, with a low around 34.
Wednesday
A chance of rain and snow showers. Snow level 8300 feet. Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Mammoth Hot Springs WY
 45°N 110.75°W (Elev. 8100 ft)
2:47 am MDT Oct 8, 2026
3am MDT Oct 8, 2026-6pm MDT Oct 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database