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Targhee Pass weather

US-20 between Island Park and West Yellowstone, Idaho and Montana. The summit is 7,080 ft.

Summit
7,080 ft
Highway
US-20
Island Park
19 mi
West Yellowstone
9 mi

Summit forecast, next 72 hours

Targhee Pass summit, 7,080 ft · Updated · Forecast: National Weather Service

  • New snow0 in
  • Strongest gusts20 mphTuesday
  • Coldest21°F
ForecastSnowGustsTemp °F
Columbus DayRain And Snow Likely0 in10 mphHigh 37°
TonightSlight Chance Rain And Snow then Cloudy0 in15 mphLow 28°
TuesdayPartly Sunny0 in20 mphHigh 41°
Tuesday NightPartly Cloudy0 in15 mphLow 20°
WednesdaySunny0 in10 mphHigh 46°
Wednesday NightMostly Clear0 in15 mphLow 26°

Snow is the forecast new accumulation at the summit grid point. Dots use Road Travel’s driving-risk scale.

Typical weather by month

Monthly normals from the long-term stations nearest the summit. None sits exactly on the pass, so each column says how far away and how high it is.

MonthWhiskey Creek
6,800 ft · 8 mi southeast of the summit
W Yellowstone Gateway
6,679 ft · 9 mi east of the summit
Hebgen Dam
6,489 ft · 14 mi north of the summit
Precip (in)High / low °FHigh / low °FSnow (in)
Jan3.527° / 0°23° / 4°43.8
Feb3.131° / 2°28° / 5°33.7
Mar3.240° / 9°38° / 14°20.6
Apr3.248° / 21°47° / 23°7.7
May3.559° / 29°58° / 32°1.2
Jun2.868° / 34°68° / 39°0
Jul1.180° / 39°79° / 45°0
Aug1.278° / 36°78° / 43°0
Sep1.768° / 30°68° / 37°0
Oct2.451° / 21°51° / 28°4.1
Nov3.236° / 11°34° / 18°20.9
Dec4.026° / 3°23° / 6°45.2

NOAA NCEI U.S. Climate Normals, 1991–2020: Whiskey Creek (USS0011E30S, 6,800 ft); W YELLOWSTONE GATEWAY (USC00248858, 6,679 ft); HEBGEN DAM (USC00244038, 6,489 ft). Snow days are days with at least 1 inch of new snow. “—” means the station does not publish that normal.

Cameras, road reports and winter rules

Conditions on the pass change by the hour, so these go straight to the official sources.

Check the official National Weather Service forecast for the summit and the road report before you leave.

Crossing Targhee Pass? See the summit at the hour you’ll be there

Road Travel times the forecast to your drive, so you see conditions at the summit when you will actually reach it, and get alerts about weather ahead on the way.

Questions about Targhee Pass

How high is Targhee Pass?

The summit is 7,080 ft above sea level, on US-20.

How far is Targhee Pass from Island Park and West Yellowstone?

By road, the summit is 19 miles from Island Park, ID and 9 miles from West Yellowstone, MT.

What is the wettest month at Targhee Pass?

December. The Whiskey Creek snow-monitoring site (6,800 ft, 8 mi southeast of the summit) averages 4.0 inches of precipitation that month, counting the water in melted snow (1991–2020 normals).

How cold does it get near Targhee Pass?

The coldest month is January. W Yellowstone Gateway (6,679 ft, 9 mi east of the summit) averages a low of 0°F then (1991–2020 normals); the summit is 401 ft higher.