National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

61°F

16°C

Humidity 53%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 20 Jun 10:15 AM MDT
Extended Forecast for

17 Miles W Gardiner MT

  • Today

    Today: Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 54. South wind 8 to 11 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 54 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 42. West northwest wind 6 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Sunday

    Sunday: Isolated showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 54. West wind 6 to 11 mph. Chance of precipitation is 20%.

    High: 54 °F

    Isolated
    Showers then
    Isolated
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 39. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. North northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 54. South wind 8 to 11 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 42. West northwest wind 6 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Isolated showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 54. West wind 6 to 11 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 39. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 53. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 36. North northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 59. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 62.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Gardiner MT
 45.08°N 111.07°W (Elev. 9426 ft)
Last Update:
9:31 am MDT Jun 20, 2026
Forecast Valid:
11am MDT Jun 20, 2026-6pm MDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation