Mount Rainier National Park Weather in October

October in Mount Rainier National Park brings low temperatures around 3°C (37°F) during the day, dropping to -6°C (21°F) at night, and as part of the rainy season, heavy snow/rainfall is common.

Rainfall in Mount Rainier National Park in October

As part of the rainy season, Mount Rainier National Park sees around 19 days of rain in October, with an average of 295 mm (12 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Mount Rainier National Park in October

October in Mount Rainier National Park brings low temperatures, with highs of 3°C (37°F) and nights around -6°C (21°F). Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. With lows of -6°C (21°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.

Sunshine in Mount Rainier National Park in October

The month experiences a moderate amount of sunlight, with 153 hours of sunshine. This provides a nice balance between sunshine and rain.

If you prefer dry days with pleasant temperatures, October may not be the ideal month to visit Mount Rainier National Park. Our weather planner can help you explore destinations with more pleasant weather conditions.