Sepulcher Mountain Weather Forecast, WY

Today 19 Dec Yellowstone National Park

Snow Showers. Blowing snow. Snow may be heavy at Times. Visibility one quarter mile or less at Times. Snow accumulation up to 19 Inches. Windy with Highs in the lower 30s. Southwest Winds 20 to 30 Mph with Gusts up to 55 Mph. Chance of snow 90 percent.

Tonight 19 Dec Yellowstone National Park

Blowing snow in the evening. Mostly cloudy with snow Showers with a slight chance of Thunderstorms in the Evening, then partly cloudy with a chance of snow Showers after midnight with visibility one quarter mile or less at Times. Storm total snow accumulation of 6 to 10 Inches. Windy, cold with Lows 5 to 11 above. West Winds 20 to 30 Mph with Gusts up to 50 Mph, Diminishing to 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of snow 80 percent.

Sat 20 Dec Yellowstone National Park

Partly cloudy with a 50 percent chance of snow Showers. New snow accumulation up to 1 inch. Cold with Highs around 20. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Sat 20 Dec Yellowstone National Park

Partly cloudy in the Evening, then mostly cloudy with snow Showers likely after midnight. Little or no snow accumulation. Cold with Lows 9 to 15 above. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 60 percent.

Sun 21 Dec Yellowstone National Park

Snow Showers. Moderate snow accumulation. Highs in the lower 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 90 percent.

Sun 21 Dec Yellowstone National Park

Snow Showers. Snow may be heavy at Times after midnight. New moderate snow accumulation. Breezy with Lows in the upper 20s. Chance of snow near 100 percent.

Mon 22 Dec Yellowstone National Park

Snow Showers. New light snow accumulation. Breezy with Highs in the lower 30s. Chance of snow 80 percent.

Mon 22 Dec Yellowstone National Park

Snow Showers. New light snow accumulation. Lows in the upper 20s. Chance of snow 80 percent.

Tue 23 Dec Yellowstone National Park

Cloudy with snow Showers likely. A chance of rain Showers in the afternoon. New light snow accumulation possible. Highs in the mid 30s. Chance of precipitation 70 percent.

Tue 23 Dec Yellowstone National Park

Mostly cloudy in the Evening, then becoming partly cloudy. A 30 percent chance of snow Showers. Lows in the upper 20s.

Wed 24 Dec Yellowstone National Park

Snow Showers. Light snow accumulation. Highs in the mid 30s. Chance of snow 80 percent.

Wed 24 Dec Yellowstone National Park

Mostly cloudy. Snow Showers Likely, mainly in the evening. New moderate snow accumulation possible. Breezy with Lows in the lower 20s. Chance of snow 60 percent.

Thu 25 Dec Yellowstone National Park

Mostly cloudy with snow Showers likely. New light snow accumulation possible. Highs in the lower 30s. Chance of snow 70 percent.

Thu 25 Dec Yellowstone National Park

Areas of blowing snow in the evening. Snow Showers. Snow may be heavy at Times with visibility one quarter mile or less at Times. New snow accumulation up to 17 Inches. Windy with Lows in the mid 20s. Southwest Winds 20 to 30 Mph. Gusts up to 45 Mph, increasing to 55 Mph after midnight. Chance of snow 90 percent.

Sepulcher Mountain Weather Forecast

Today 19 Dec Yellowstone National Park

Tonight 19 Dec Yellowstone National Park

Sat 20 Dec Yellowstone National Park

Sat 20 Dec Yellowstone National Park

Sun 21 Dec Yellowstone National Park

Sun 21 Dec Yellowstone National Park

Mon 22 Dec Yellowstone National Park

Mon 22 Dec Yellowstone National Park

Tue 23 Dec Yellowstone National Park

Tue 23 Dec Yellowstone National Park

Wed 24 Dec Yellowstone National Park

Wed 24 Dec Yellowstone National Park

Thu 25 Dec Yellowstone National Park

Thu 25 Dec Yellowstone National Park

Temperature Forecast NOAA

Temperature Real-Time

Billings Radar

National Satellite

National Synoptic

Sepulcher Mountain Temperature Statistics

December Temperature

West Yellowstone (26.7 miles)

Lowest 28 October, 2025

Average 2025

Highest 1 July, 2025

Lowest

Average November

Highest

Lowest

Average December

Highest

Climate (2021–Present)

West Yellowstone (26.7 miles)

Average Low 2021–2025

Average 2021–2025

Average High 2021–2025