Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

Lat: 44.456667°NLon: 110.849444°WElev: 7332.0ft.

NA

49°F

9°C

Humidity 54%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 31 Aug 09:15 AM MDT
Extended Forecast for

Old Faithful WY

  • Today

    Today: Sunny, with a high near 69. East northeast wind 5 to 13 mph becoming southwest in the afternoon.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 4am.  Increasing clouds, with a low around 39. Southwest wind 5 to 8 mph becoming south southeast in the evening.  Chance of precipitation is 40%.

    Low: 39 °F

    Partly Cloudy
    then
    Scattered
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 3pm, then isolated showers and thunderstorms after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 66. South southeast wind 5 to 10 mph.  Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely then
    Isolated
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am.  Mostly cloudy, with a low around 37. South southeast wind 3 to 8 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Scattered
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. South southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. South wind 3 to 8 mph. Winds could gust as high as 25 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 28 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 69. East northeast wind 5 to 13 mph becoming southwest in the afternoon.
Tonight
Scattered showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 39. Southwest wind 5 to 8 mph becoming south southeast in the evening. Chance of precipitation is 40%.
Tuesday
Showers and thunderstorms likely before 3pm, then isolated showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 66. South southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Mostly cloudy, with a low around 37. South southeast wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 63. South southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 34. South wind 3 to 8 mph. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 66.
Friday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 37.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 38.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Old Faithful WY
 44.46°N 110.82°W (Elev. 7398 ft)
9:32 am MDT Aug 31, 2026
9am MDT Aug 31, 2026-6pm MDT Sep 6, 2026
 
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Additional Resources

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