Tumwater Weather Forecast
- 46
- 55
Rain
- 43
- 59
Rain Showers
- 43
- 61
Chance Rain Showers
- 42
- 61
Chance Rain
- 48
- 60
Rain
- 48
- 60
Rain
Today 18 Oct Olympia and Southern Puget Sound
Mostly cloudy. Patchy fog in the morning. A slight chance of rain in the morning. A chance of rain in the late morning and early Afternoon, then rain likely late in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the 50s. Light wind becoming southwest to 10 Mph in the afternoon.
Tonight 18 Oct Olympia and Southern Puget Sound
Breezy. Rain until early Morning, then cloudy with a chance of Showers in the morning. Rainfall Amounts a half inch to one inch possible. Lows in the 40s. South wind 10 to 20 Mph becoming southwest 15 to 25 Mph after midnight.
Tumwater Temperature Statistics
October Temperature
Olympia, Olympia Airport (1.9 miles)
Lowest 15 October, 2025
28 °FAverage October
51.6 °FHighest 7 October, 2025
75.9 °F
Climate (2020–Present)
Olympia, Olympia Airport (1.9 miles)
Average Low 2020–2025
41.6 °FAverage 2020–2025
51.5 °FAverage High 2020–2025
62.1 °F