Tumwater, WA Weather & Growing Conditions
Today
58°F
Mostly Cloudy then Light Rain
Rain after 4pm. Mostly cloudy. High near 58, with temperatures falling to around 53 in the afternoon. South southwest wind 2 to 8 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Mostly Cloudy then Light Rain | 2 to 8 mph SSW | 83% |
| Tonight | 43°F | Light Rain | 7 to 13 mph SSW | 96% |
| Thursday | 58°F | Partly Sunny | 5 to 8 mph SSW | 13% |
| Thursday Night | 42°F | Light Rain | 3 to 9 mph S | 83% |
| Friday | 56°F | Light Rain | 5 to 16 mph S | 84% |
| Friday Night | 45°F | Light Rain Likely | 0 to 5 mph S | 72% |
| Saturday | 63°F | Mostly Cloudy then Chance Light Rain | 3 mph S | 44% |
| Saturday Night | 47°F | Light Rain | 3 to 15 mph SSW | 82% |
| Sunday | 57°F | Light Rain Likely | 2 to 9 mph SSW | 60% |
| Sunday Night | 39°F | Slight Chance Light Rain | 2 mph WNW | 15% |
| Monday | 57°F | Chance Light Rain | 0 to 3 mph ESE | 41% |
| Monday Night | 44°F | Light Rain Likely | 2 to 9 mph S | 58% |
| Tuesday | 59°F | Light Rain Likely | 5 to 12 mph S | 58% |
| Tuesday Night | 45°F | Chance Light Rain | 5 mph SSE | 53% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Tumwater, WA
Last spring frost
Apr 29
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
8a
Explore more for Tumwater, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Olympia Ap, Wa (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.