Rochester, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rochester, a community in Thurston County, Washington.
Today
57°F
Patchy Fog then Light Rain
Patchy fog before 9am, then rain. Mostly cloudy. High near 57, with temperatures falling to around 53 in the afternoon. South wind 1 to 8 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Rochester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Patchy Fog then Light Rain | 1 to 8 mph S | 82% |
| Tonight | 44°F | Light Rain | 7 to 15 mph S | 96% |
| Thursday | 58°F | Partly Sunny | 8 mph S | 12% |
| Thursday Night | 43°F | Light Rain | 3 to 10 mph S | 78% |
| Friday | 55°F | Light Rain | 6 to 16 mph S | 83% |
| Friday Night | 45°F | Light Rain Likely | 1 to 6 mph SSE | 70% |
| Saturday | 63°F | Mostly Cloudy then Chance Light Rain | 2 to 6 mph S | 42% |
| Saturday Night | 48°F | Light Rain | 6 to 18 mph S | 83% |
| Sunday | 58°F | Light Rain Likely | 0 to 10 mph SSW | 56% |
| Sunday Night | 40°F | Slight Chance Light Rain | 0 mph | 15% |
| Monday | 57°F | Chance Light Rain | 0 to 3 mph ESE | 39% |
| Monday Night | 45°F | Light Rain Likely | 3 to 13 mph SSE | 57% |
| Tuesday | 59°F | Light Rain Likely | 6 to 14 mph S | 57% |
| Tuesday Night | 46°F | Chance Light Rain | 8 mph SSE | 52% |
Forecast source: National Weather Service (api.weather.gov) for Rochester (46.820, -123.064). Updated through the day.
Growing snapshot for Rochester
Last spring frost
Apr 22
First fall frost
Oct 27
Growing season
188 days
Hardiness zone
8b
More local growing data for Rochester: nearby ZIP 98579 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Centralia, Wa (9.4 mi from Rochester). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.