Tumwater, WA Weather & Growing Conditions
This Afternoon
58°F
Partly Sunny
Partly sunny. High near 58, with temperatures falling to around 53 in the afternoon. North northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Partly Sunny | 2 mph NNE | 3% |
| Tonight | 36°F | Patchy Fog | 0 mph | 3% |
| Wednesday | 59°F | Patchy Fog then Chance Light Rain | 0 to 6 mph SSW | 50% |
| Wednesday Night | 45°F | Light Rain | 6 to 12 mph S | 98% |
| Thursday | 58°F | Partly Sunny | 5 to 8 mph SSW | 13% |
| Thursday Night | 45°F | Light Rain | 3 to 7 mph S | 78% |
| Friday | 57°F | Light Rain | 7 to 14 mph S | 78% |
| Friday Night | 45°F | Chance Light Rain | 0 to 7 mph S | 41% |
| Saturday | 62°F | Chance Light Rain | 1 to 5 mph S | 35% |
| Saturday Night | 48°F | Light Rain | 5 to 16 mph SSW | 75% |
| Sunday | 58°F | Light Rain Likely | 3 to 14 mph SW | 66% |
| Sunday Night | 41°F | Chance Light Rain | 0 to 3 mph SW | 26% |
| Monday | 57°F | Chance Light Rain | 0 to 7 mph SSE | 54% |
| Monday Night | 45°F | Light Rain Likely | 7 to 13 mph S | 69% |
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 (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.