Locally Heavy Rainfall and Flash Flooding Possible Over the Midwest & Southwest; Critical Fire Weather Conditions in the Great Basin

Monsoon moisture will result in locally heavy showers and thunderstorms over the Southwest U.S. through Sunday. Heavy rainfall will also impact parts of the Midwest. Meanwhile, critical fire weather conditions are expected for much of the Great Basin. Tropical Storm Humberto will remain well offshore the Southeast U.S., but rip currents and heavy surf are expected from Florida to the Carolinas. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

Lat: 44.97722°NLon: 110.69528°WElev: 6127ft.

NA

14°C

57°F

Humidity 34%
Wind Speed S 4 G 5 MPH
Barometer NA
Dewpoint -2°C (29°F)
Visibility NA
Last update 15 Sep 3:15 am MDT
Extended Forecast for

Gardiner MT

  • Today

    Today: Increasing clouds, with a high near 28. Southeast wind 10 to 18 km/h becoming southwest in the afternoon.

    Increasing
    Clouds

    High: 28 °C

  • Tonight

    Tonight: Increasing clouds, with a low around 11. Southeast wind 11 to 16 km/h.

    Increasing
    Clouds

    Low: 11 °C

  • Monday

    Monday: Cloudy through mid morning, then clearing, with a high near 26. Breezy, with a south wind 10 to 15 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 48 km/h.

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

    High: 26 °C

  • Monday
    Night

    Monday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 9. South wind 16 to 21 km/h decreasing to 10 to 15 km/h in the evening. Winds could gust as high as 42 km/h.

    Chance
    Showers

    Low: 9 °C

  • Tuesday

    Tuesday: A chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm.  Mostly cloudy, with a high near 16. Southwest wind 11 to 18 km/h.  Chance of precipitation is 70%.

    Showers
    Likely

    High: 16 °C

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers, mainly before midnight.  Partly cloudy, with a low around 4. South wind 10 to 16 km/h.

    Chance
    Showers

    Low: 4 °C

  • Wednesday

    Wednesday: Sunny, with a high near 21. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 34 km/h.

    Sunny

    High: 21 °C

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers after midnight.  Mostly clear, with a low around 6.

    Mostly Clear
    then Slight
    Chance
    Showers

    Low: 6 °C

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after noon.  Mostly sunny, with a high near 21.

    Chance
    Showers

    High: 21 °C

Detailed Forecast

Today
Increasing clouds, with a high near 28. Southeast wind 10 to 18 km/h becoming southwest in the afternoon.
Tonight
Increasing clouds, with a low around 11. Southeast wind 11 to 16 km/h.
Monday
Cloudy through mid morning, then clearing, with a high near 26. Breezy, with a south wind 10 to 15 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 48 km/h.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 9. South wind 16 to 21 km/h decreasing to 10 to 15 km/h in the evening. Winds could gust as high as 42 km/h.
Tuesday
A chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm. Mostly cloudy, with a high near 16. Southwest wind 11 to 18 km/h. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 4. South wind 10 to 16 km/h.
Wednesday
Sunny, with a high near 21. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 34 km/h.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 6.
Thursday
A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 21.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 6. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 16.
Friday Night
A chance of showers. Mostly cloudy, with a low around 4.
Saturday
A chance of showers. Mostly cloudy, with a high near 16.
Click Map For Forecast
Point Forecast:
Gardiner MT
 45.03°N 110.7°W (Elev. 1646 m)
2:58 am MDT Sep 15, 2019
4am MDT Sep 15, 2019-6pm MDT Sep 21, 2019
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database