Harman US

Renton, WA Weather & Growing Conditions

Tonight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. South wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 53°F Partly Cloudy 2 mph S 0%
Saturday 74°F Partly Sunny 0 to 3 mph WSW 1%
Saturday Night 54°F Partly Cloudy 2 mph N 0%
Sunday 74°F Mostly Sunny 1 to 6 mph N 0%
Sunday Night 54°F Mostly Clear 0 to 6 mph NNE 0%
Monday 73°F Mostly Sunny 0 to 3 mph WSW 0%
Monday Night 54°F Partly Cloudy 3 mph NNE 2%
Tuesday 70°F Partly Sunny 2 mph NNW 2%
Tuesday Night 53°F Partly Cloudy 2 mph ENE 2%
Wednesday 69°F Partly Sunny 3 mph WNW 4%
Wednesday Night 53°F Mostly Cloudy 3 mph NNE 6%
Thursday 71°F Partly Sunny 1 to 5 mph N 14%
Thursday Night 54°F Chance Light Rain 5 mph S 26%
Friday 68°F Chance Light Rain 2 to 6 mph SW 26%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Renton, WA

Last spring frost
Mar 13
First fall frost
Nov 16
Growing season
248 days
Hardiness zone
9a

Explore more for Renton, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Renton Muni Ap, Wa (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.