Washington weather in October
October in Washington: nice, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Washington · #188 of 604 destinations to visit in October · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Washington climate normals — October
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 96 mm / 3.8 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 7.4 h/day | |
| Daylight | 11.2 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Washington in October — FAQ
- Is October a good time to visit Washington?
- October in Washington: nice, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Washington on SeasonMap's comfort score (84/100).
- What is the weather like in Washington in October?
- In October, Washington averages a daily high of 20.8°C and a low of 12.1°C, with about 95.5 mm of rain over roughly 9 rainy days.
- What is the air quality in Washington in October?
- Washington has a mean US Air Quality Index of about 42 in October.