Downtown Renton Weather Forecast
- 45
- 62
Becoming Sunny
- 51
- 65
Rain Likely
- 53
- 64
Rain
- 48
- 61
Rain
- 45
- 55
Rain
- 43
- 54
Rain
Today 21 Oct Lowlands of Pierce and Southern King Counties
Mostly cloudy in the morning then becoming mostly sunny. Highs in the mid 50s to lower 60s. Light wind.
Tonight 21 Oct Lowlands of Pierce and Southern King Counties
Mostly clear. Lows in the lower to mid 40s. Light wind.
Downtown Renton Temperature Statistics
October Temperature
Renton Municipal Airport (0.6 miles)
Lowest 15 October, 2025
36 °FAverage October
55.1 °FHighest 7 October, 2025
75.9 °F
Climate (2020–Present)
Renton Municipal Airport (0.6 miles)
Average Low 2020–2025
47.2 °FAverage 2020–2025
54.5 °FAverage High 2020–2025
62.2 °F