Renton, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Renton, a city in King County, Washington.

This Afternoon

72°F

Mostly Sunny

Mostly sunny, with a high near 72. Northwest wind around 2 mph.

7-day forecast for Renton

When	Temp	Forecast	Wind	Precip
This Afternoon	72°F	Mostly Sunny	2 mph NW	0%
Tonight	53°F	Mostly Clear	2 mph N	0%
Sunday	73°F	Mostly Sunny	0 to 5 mph NNW	0%
Sunday Night	52°F	Partly Cloudy	0 to 5 mph N	0%
Monday	71°F	Partly Sunny	0 to 3 mph N	0%
Monday Night	53°F	Partly Cloudy	3 mph NNE	1%
Tuesday	68°F	Mostly Cloudy	2 mph NW	1%
Tuesday Night	51°F	Mostly Cloudy	2 mph S	7%
Wednesday	67°F	Partly Sunny	3 mph SW	10%
Wednesday Night	51°F	Mostly Cloudy	2 mph N	12%
Thursday	64°F	Mostly Cloudy then Slight Chance Light Rain	2 to 6 mph N	19%
Thursday Night	50°F	Slight Chance Light Rain	1 to 6 mph N	19%
Friday	63°F	Slight Chance Light Rain	1 to 6 mph N	22%
Friday Night	49°F	Slight Chance Light Rain then Mostly Cloudy	5 mph NE	16%

Forecast source: National Weather Service (api.weather.gov) for Renton (47.479, -122.195). Updated through the day.

Growing snapshot for Renton

Last spring frost

Mar 13

First fall frost

Nov 16

Growing season

248 days

Hardiness zone

More local growing data for Renton: nearby ZIP 98057 weather · frost dates · planting calendar · Washington frost dates

Nearby towns & communities

Algona Ames Lake Auburn Baring Beaux Arts Village Bellevue Black Diamond Bothell Boulevard Park Bryn Mawr-Skyway Burien Carnation Clyde Hill Cottage Lake Covington Des Moines Duvall East Renton Highlands Fairwood Fall City Federal Way Greenwater High Bridge Hobart Hunts Point Index Issaquah Kenmore Kent Kirkland

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Climate data from the nearest NOAA station, Renton Muni Ap, Wa (1.5 mi from Renton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.