West Yellowstone, MT

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View of the Rocky Mountains (over Targhee Pass Highway) in West Yellowstone, Montana

Today’s Forecast:

🌤
51°F
High: 64° | Low: 31°
Current Temperature
Station: OFAW4
Observed at: 8:15 pm CDT on 9/26/26
Wind: 5 mph | Humidity: 42%
Tonight:Mostly cloudy. Low around 31, with temperatures rising to around 36 overnight. Southeast wind 0 to 8 mph.
Sunday:Mostly cloudy, with a high near 64. Southwest wind 0 to 8 mph.
Sunday Night:A slight chance of showers and thunderstorms between 1am and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 35. East wind 0 to 3 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
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Today’s Report:

🚲 Biking

Excellent
  100 /100

Excellent for biking. High near 64°F. Low rain risk (9%). Light wind (8 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 12/100
Not Recommended for biking. High near 58°F. High rain probability (62%). Light wind (6 mph). Thunderstorms forecast or possible.

⛺ Camping

Excellent
  100 /100

Excellent for camping. High near 64°F. Low rain risk (9%). Light wind (8 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 15/100
Not Recommended for camping. High near 58°F. High rain probability (62%). Light wind (6 mph). Thunderstorms forecast or possible.

🎪 Outdoor Events / Activities

Excellent
  100 /100

Excellent for outdoor events / activities. High near 64°F. Low rain risk (9%). Light wind (8 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 11/100
Not Recommended for outdoor events / activities. High near 58°F. High rain probability (62%). Light wind (6 mph). Thunderstorms forecast or possible.


About West Yellowstone

West Yellowstone is a Montana destination for Yellowstone’s west entrance, cycling routes, camping, events, and cold high-plateau weather.

Make the Most of a West Yellowstone Day

Use the forecast to match the day’s route, launch, road access, and turnaround time to wind, precipitation, temperature, smoke, water conditions, and elevation. Keep a shorter or lower-elevation backup ready.

Weather Tips for West Yellowstone

  • Check current access, alerts, fire restrictions, and local forecasts before setting out.
  • Turn around before exposed ridges, overlooks, or open ground become unsafe in thunder, high wind, smoke, or poor visibility.
  • Montana weather can shift quickly; carry layers, sun protection, water, and a reliable navigation plan.
  • Allow extra daylight for remote roads, seasonal traffic, wildlife, and changing trail or shoreline conditions.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Hebgen Lake
  • Madison Junction
  • Island Park
  • Yellowstone National Park
  • Quake Lake

Plan Around the Conditions

Choose the safest and most enjoyable version of a West Yellowstone day by matching the activity to current wind, precipitation, smoke, temperature, road access, trail surfaces, water conditions, and daylight.

7-Day Forecast for West Yellowstone

🌤
51°F
High: 64° | Low: 31°
Current Temperature
Station: OFAW4
Observed at: 8:15 pm CDT on 9/26/26
Wind: 5 mph | Humidity: 42%
Sun ☁
64° 35°
11%
Mon ⛈
59° 25°
62%
Tue ☀
63° 28°
0%
Wed ☀
64° 28°
1%
Thu ☀
64° 30°
0%
Fri ⛅
64° 29°
3%
Sat ⛅
61° --°
6%

7-Day High Temperature Trend

64° Sun 59° Mon 63° Tue 64° Wed 64° Thu 64° Fri 61° Sat

7-Day Low Temperature Trend

35° Sun 25° Mon 28° Tue 28° Wed 30° Thu 29° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Sun 21 Mon 100 Tue 100 Wed 100 Thu 100 Fri 100 Sat
Forecast data from the National Weather Service  |  Last Updated: September 27, 2026 12:57 am CDT

West Yellowstone Weather by Season

Winter

Winter around West Yellowstone can bring snow, ice, strong wind, short daylight, and abrupt cold. Check road, trail, campground, and facility access before leaving, and expect conditions to change sharply with elevation.

Spring

Spring is variable, with freeze-thaw cycles, mud, lingering mountain snow, rising water, and occasional late storms. Lower routes often open well before high-country roads and trails.

Summer

Summer generally offers the broadest access, but heat, afternoon thunderstorms, wildfire smoke, fire restrictions, gusty wind, and limited shade can alter plans. Start exposed outings early and carry more water than expected.

Fall

Fall brings cooler days, clearer periods, changing color, shorter daylight, and the possibility of early snow. Seasonal services can close before winter weather becomes continuous, so confirm local operations.

Key Climate Data Points

  • Annual average temperature: around 35–42°F, using the relevant local and elevation context.
  • Annual snowfall: often 100 inches or more in nearby high terrain, with deep, persistent snow and major elevation variation.
  • Warmest months: July and August are normally warmest.
  • Coolest months: December and January are typically coolest.
  • Wettest season: late spring and early summer often bring the most precipitation, with local mountain variation.
  • Driest season: midsummer is often driest, although thunderstorms remain possible.
  • Best outdoor window: June through September for the broadest access, with shoulder seasons useful at lower elevations.