Yellowstone National Park Weather & Climate (2025)

Yellowstone's dramatic weather shapes every visit - from sudden summer thunderstorms to breathtaking winter snowscapes. At 6,000+ feet elevation, conditions change rapidly across the park's diverse microclimates. Here's your essential 2025 weather guide with real-time alerts and expert packing tips:

⚠️ Current Weather Alerts

As of July 17, 2025: No active advisories. Check back for real-time updates on:

  • Road closures due to weather
  • Severe storm warnings
  • Fire restrictions
  • Trail conditions

View Latest Alerts

Seasonal Weather Patterns

🌷 Spring (April-June)

  • Avg Temps: 20-60°F (-6-16°C)
  • Conditions: Snow melts reveal wildflowers; wildlife emerges
  • Gear Must-Haves: Waterproof boots, layered clothing

☀️ Summer (July-Aug)

  • Avg Temps: 70-80°F (21-27°C) days, freezing nights
  • Conditions: Sunny mornings, afternoon thunderstorms
  • Gear Must-Haves: Sun protection, rain jacket

🍂 Fall (Sept-Oct)

  • Avg Temps: 30-60°F (-1-16°C)
  • Conditions: Crisp air, vibrant foliage, early snow
  • Gear Must-Haves: Warm layers, traction devices

❄️ Winter (Nov-Mar)

  • Avg Temps: Below freezing, lows to -45°F (-43°C)
  • Conditions: Heavy snow, limited access
  • Gear Must-Haves: Insulated everything, snowshoes

Microclimate Variations

Yellowstone's vast size creates dramatic weather differences:

Area Summer High Winter Low Unique Conditions
Mammoth Hot Springs 80°F (27°C) -20°F (-29°C) Driest area, least snow
Old Faithful 75°F (24°C) -30°F (-34°C) Frequent steam fog
Lake Yellowstone 65°F (18°C) -40°F (-40°C) Strong winds, lake effect snow

Activity-Specific Advice

🏕️ Camping

Summer: Prepare for cold nights
Winter: Snow-ready gear required

🥾 Hiking

Morning starts recommended
Afternoon storm awareness

📸 Photography

Golden hours extended
Winter steam creates magic

Essential Gear Packages

Summer Explorer Kit

  • Moisture-wicking base layers
  • Convertible hiking pants
  • SPF 50+ sunscreen
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Winter Adventurer Bundle

  • Insulated waterproof boots
  • Heavy-duty parka
  • Thermal gloves/mask