Yellowstone 7 Day Weather Forecast with Current Weather Conditions for , CA." />

U.S. Radar Loop

U.S. Color Satellite

North America Color Infrared Animated Satellite Loop

Interactive Wx Map

Live U.S. Google Map Radar Thumbnail Image

US Precipitation

US Temperatures

US Climate Data

Yellowstone National Park, CA Weather Forecast

Wx Discussion - Wx Hazards - Wx Aviation

NWS Forecast for Old Faithful WY

National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY

Updated: 5:18 pm MDT Sep 23, 2026

Tonight Fog	Thursday Areas Fog then Sunny	Thursday Night Mostly Clear then Patchy Fog	Friday Patchy Fog then Sunny	Friday Night Partly Cloudy	Saturday Sunny	Saturday Night Partly Cloudy	Sunday Partly Sunny then Slight Chance T-storms	Sunday Night Chance Showers
Lo 33 °F	Hi 67 °F	Lo 35 °F	Hi 66 °F	Lo 37 °F	Hi 59 °F	Lo 35 °F	Hi 62 °F	Lo 35 °F

Tonight	Widespread fog, mainly after midnight. Otherwise, mostly clear, with a low around 33. West southwest wind around 5 mph becoming calm in the evening.
Thursday	Areas of fog before 10am. Otherwise, sunny, with a high near 67. Light and variable wind becoming south southwest around 5 mph.
Thursday Night	Patchy fog after 2am. Otherwise, mostly clear, with a low around 35. Light and variable wind.
Friday	Patchy fog before 9am. Otherwise, sunny, with a high near 66. Light and variable wind becoming south southwest 5 to 8 mph in the morning. Winds could gust as high as 23 mph.
Friday Night	Partly cloudy, with a low around 37. South southwest wind around 7 mph, with gusts as high as 22 mph.
Saturday	Sunny, with a high near 59. South southwest wind 6 to 10 mph, with gusts as high as 28 mph.
Saturday Night	Partly cloudy, with a low around 35. South wind 3 to 6 mph.
Sunday	A 10 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.
Sunday Night	A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 35.
Monday	A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 51. Chance of precipitation is 50%.
Monday Night	A slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 28.
Tuesday	Mostly sunny, with a high near 51.
Tuesday Night	Mostly clear, with a low around 27.
Wednesday	Sunny, with a high near 55.

Forecast from NOAA-NWS for Old Faithful WY.

Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

| Mobile

Private Policy | Terms & Conds | | Cookie Policy

Never base any life decisions on weather information from this site or anywhere over the Internet.
Site is dedicated to our Lord & Savior Jesus Christ | Random Quotes of Jesus
Copyright © 2026 El Dorado Weather, Inc. | Site Designed By: Webmaster Danny