Average temperatures, rainfall and packing tips for Washington, United States in October
October in Washington is typically mild, with average daytime highs around 20°C and nights near 10°C. Temperature-wise it sits mid-range for Washington (the 7th warmest month).
Rainfall is light in October: roughly 9 mm across the whole month, typically the driest month of the year.
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In October, Washington averages a daytime high of about 20°C and a night-time low of around 10°C, based on recent historical data.
Rainfall is light in October: roughly 9 mm across the whole month, typically the driest month of the year.
October is one of the most comfortable months to visit Washington - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.