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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

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

NA

66°F

19°C

Humidity 45%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 29 Jul 09:15 PM MDT
Extended Forecast for

Old Faithful WY

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then isolated showers between midnight and 1am. Patchy smoke after 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. West southwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers

  • Thursday

    Thursday: Areas of smoke. Sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 81 °F

    Areas Smoke

  • Thursday Night

    Thursday Night: Widespread smoke, mainly after 4am. Partly cloudy, with a low around 44. South southwest wind 5 to 8 mph becoming light and variable in the evening.

    Low: 44 °F

    Smoke

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming west around 5 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 24 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. South wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then isolated showers between midnight and 1am. Patchy smoke after 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. West southwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Thursday
Areas of smoke. Sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the morning.
Thursday Night
Widespread smoke, mainly after 4am. Partly cloudy, with a low around 44. South southwest wind 5 to 8 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 83. Calm wind becoming west around 5 mph.
Friday Night
Mostly clear, with a low around 45. Light and variable wind.
Saturday
Sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Mostly clear, with a low around 48. South wind 5 to 9 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Faithful WY
 44.46°N 110.82°W (Elev. 7398 ft)
Last Update:
8:49 pm MDT Jul 29, 2026
Forecast Valid:
9pm MDT Jul 29, 2026-6pm MDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation