Yellowstone National Park Weather in October
During October, Yellowstone National Park experiences low daytime temperatures of 9°C (48°F) and cooler nights around -4°C (25°F). Expect quite a bit of snow/rainfall. Around 66 mm (2.6 in) is typical.
Rainfall in Yellowstone National Park in October
Typically, about 14 days will experience snow/rainfall, with an average of 66 mm (2.6 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Yellowstone National Park in October
October in Yellowstone National Park sees highs of 9°C (48°F) and lows of -4°C (25°F) overnight. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With overnight lows of -4°C (25°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit Yellowstone National Park. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Yellowstone National Park's climate page.
Yellowstone National Park Temperature in October
Min Temperature
-4°C (25°F)
Max Temperature
9°C (48°F)
Chance of Rain
47%
Precipitation
66 mm (2.6 in)
Rainy days
14 days
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Yellowstone National Park typically drop from around 11°C (52°F) at the start of October to approximately 5°C (41°F) by the end. Nights are very cold, with lows typically ranging from -8°C (18°F) to -2°C (28°F).
Average temperatures in October
Daily Historical Precipitation
45-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Yellowstone National Park in October
Browse day-by-day weather records for Yellowstone National Park spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Yellowstone National Park historical weather extremes in October
According to our 23 years of weather records for Yellowstone National Park, the following extremes were recorded between 2002 and 2025.
- Yellowstone National Park recorded its highest October temperature of 23°C (73°F) on October 2, 2010.
- The wettest day in October Yellowstone National Park was on October 22, 2022 with 27 mm (1.1 in) of precipitation.
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
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What to Wear in Yellowstone National Park in October
Cold weather calls for smart layering in October. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Yellowstone National Park in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Yellowstone National Park's climate page.
See the full Yellowstone National Park climate overview or explore weather in the United States of America.
