Weather WorldOld Fountain Trail, WY 7-Day Night Weather Forecast
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Old Fountain Trail, WY Weather Forecast
Old Fountain Trail, WY Weather Forecast Date: 1032 AM MDT Fri Oct 09 2026
The area/counties/county of: Yellowstone National Park, including the cities of: Lake, Mammoth, and Old Faithful.or toggle through each period.
Today... Mostly sunny and breezy. Highs in the lower 60s. Southwest winds 15 to 20 mph with gusts up to 35 mph.
Tonight... Mostly clear in the evening, then becoming partly cloudy. Lows around 40. Southwest winds 10 to 15 mph with gusts up to 30 mph.
Saturday... Rain showers with a slight chance of thunderstorms. Breezy with highs in the lower 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80%.
Saturday Night... Rain showers with a slight chance of thunderstorms. A slight chance of snow showers after midnight. Little or no snow accumulation. Lows in the mid 30s. Southeast winds 10 to 15 mph. Chance of precipitation 90%.
Sunday... Freezing rain in the morning. Rain showers, snow showers with a slight chance of thunderstorms. Little or no snow accumulation. Highs in the lower 40s. Southeast winds around 10 mph with gusts up to 20 mph in the morning. Chance of precipitation near 100%.
Sunday Night... Rain and snow showers. Light snow accumulation. Lows around 30. Chance of precipitation near 100%.
Columbus Day... Mostly cloudy. Snow and rain showers in the morning, then rain showers likely with possible snow showers and thunderstorms in the afternoon. New light snow accumulation. Highs in the mid 40s. Chance of precipitation 80%.
Monday Night... Mostly cloudy. A chance of rain and snow showers in the evening, then snow and rain showers likely after midnight. New little or no snow accumulation. Lows in the upper 20s. Chance of precipitation 60%.
Tuesday... Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain and snow showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 40s. Chance of precipitation 30%.
Tuesday Night... Partly cloudy. Snow and rain showers likely, mainly in the evening. Little or no snow accumulation. Lows in the upper 20s. Chance of precipitation 60%.
Wednesday... Partly cloudy with a chance of snow and rain showers. Highs in the mid 40s. Chance of precipitation 30%.
Wednesday Night... Partly cloudy with a chance of rain and snow showers. Lows in the mid 20s. Chance of precipitation 30%.
POP = Probability of Precipitation
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