Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

88°F

31°C

Humidity 13%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Heat Index84°F (29°C)
Last update 13 Jul 05:15 PM MDT
Extended Forecast for

3 Miles WNW Mammoth Hot Springs WY

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Increasing clouds, with a high near 79. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50. West wind 6 to 9 mph becoming east northeast after midnight.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then showers and possibly a thunderstorm after noon.  High near 68. North wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    High: 68 °F

    Slight Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 46. North wind 8 to 13 mph.  Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 62. North northwest wind 6 to 9 mph.

    High: 62 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. North northwest wind 7 to 10 mph becoming east northeast after midnight.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 71.

    High: 71 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Northwest wind 5 to 9 mph becoming calm after midnight.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 79. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. West wind 6 to 9 mph becoming east northeast after midnight.
Tuesday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 68. North wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 46. North wind 8 to 13 mph. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 62. North northwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 45. North northwest wind 7 to 10 mph becoming east northeast after midnight.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 47.
Friday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Mammoth Hot Springs WY
 45°N 110.75°W (Elev. 8100 ft)
3:43 pm MDT Jul 13, 2025
5pm MDT Jul 13, 2025-6pm MDT Jul 20, 2025
 
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Additional Resources

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