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Weather · Wyoming

Yellowstone National Park Weather on Wednesday, October 21, 2026

  1. TodayOctober 1912° 1°
  2. TomorrowOctober 2011° 2°
  3. WedOctober 2113° 2°
  4. ThuOctober 2214° 2°
  5. FriOctober 234° -5°
  6. SatOctober 24-1° -11°
  7. SunOctober 253° -9°
  8. MonOctober 264° -8°
  9. TueOctober 276° -8°
  10. WedOctober 287° -5°
  11. ThuOctober 290° -8°
  12. FriOctober 30-3° -12°
  13. SatOctober 31-5° -12°
  14. SunNovember 1-3° -7°

Yellowstone National Park · Wednesday, October 21 2026

13°2°

Light drizzle

High 13°, low 2°

Chance of rain
7%
0.2 mm
Wind
17 km/h
south
UV index
4
Moderate
Sunrise
07:45
Sunset 18:27
Day length
10 h 43 min
Moon
Waxing gibbous
81% illuminated

Updated: · Source: Open-Meteo

Forecast for Yellowstone National Park on Wednesday, October 21, 2026: light drizzle, with a high of 13°C and a low of 2°C. No significant rain is expected (7% chance). Wind from the south at up to 17 km/h. Sunrise is at 07:45 and sunset at 18:27; day length 10 h 43 min. Temperatures similar to the previous day. This day is 5° warmer than the 7-day average. The best time to be outdoors looks like 12:00–18:00.

What to wear and what to watch out for

  • Cool in the morning and evening: dress in layers and bring a sweater or jacket.

Wednesday, October 21: hour by hour

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Weather nearby on October 21

Frequently asked questions

Will it rain in Yellowstone National Park on Wednesday, October 21, 2026?
Most likely not: the chance of rain is 7%.
What will the temperature be in Yellowstone National Park on Wednesday, October 21, 2026?
A high of 13°C and a low of 2°C are expected. Conditions: light drizzle.
What time are sunrise and sunset in Yellowstone National Park on October 21, 2026?
Sunrise is at 07:45 and sunset at 18:27 (local time); day length 10 h 43 min.
How reliable is this forecast?
Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.

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