Portage Bay Weather Forecast
- 49
- 54
Rain
- 47
- 60
Rain
- 47
- 60
Chance Rain
- 45
- 59
Chance Rain
- 49
- 60
Rain Likely
- 52
- 61
Rain
Today 18 Oct City of Seattle
Cloudy. A chance of rain late in the morning. Rain likely early in the Afternoon, then rain at Times late in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the lower to mid 50s. Light wind becoming south 10 to 15 Mph in the afternoon.
Tonight 18 Oct City of Seattle
Rain. Rainfall Amounts a quarter to a half inch possible. Lows near 50. South wind 10 to 20 Mph.
Portage Bay Temperature Statistics
October Temperature
Boeing Field - King County International Airport (6.8 miles)
Lowest 15 October, 2025
37 °FAverage October
55.9 °FHighest 7 October, 2025
77 °F
Climate (2020–Present)
Boeing Field - King County International Airport (6.8 miles)
Average Low 2020–2025
46.9 °FAverage 2020–2025
54 °FAverage High 2020–2025
61.5 °F