Westport, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westport, a city in Grays Harbor County, Washington.
Today
56°F
Mostly Cloudy then Light Rain
Rain after 1pm. Mostly cloudy. High near 56, with temperatures falling to around 53 in the afternoon. South southeast wind 8 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Westport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 56°F | Mostly Cloudy then Light Rain | 8 to 23 mph SSE | 96% |
| Tonight | 49°F | Light Rain Likely | 9 to 23 mph WSW | 72% |
| Thursday | 56°F | Partly Sunny | 9 to 17 mph SSW | 9% |
| Thursday Night | 48°F | Light Rain | 16 to 23 mph SSE | 94% |
| Friday | 56°F | Light Rain | 17 to 30 mph SSE | 94% |
| Friday Night | 50°F | Light Rain | 13 to 17 mph SSE | 77% |
| Saturday | 59°F | Chance Light Rain then Showers And Thunderstorms | 14 to 29 mph SSE | 86% |
| Saturday Night | 52°F | Showers And Thunderstorms then Light Rain | 23 to 31 mph SSW | 90% |
| Sunday | 57°F | Chance Light Rain | 5 to 23 mph SSW | 48% |
| Sunday Night | 47°F | Slight Chance Light Rain | 5 to 12 mph SE | 15% |
| Monday | 56°F | Light Rain Likely | 12 to 20 mph SE | 56% |
| Monday Night | 50°F | Light Rain Likely | 20 to 26 mph SSE | 69% |
| Tuesday | 57°F | Light Rain Likely | 24 to 30 mph S | 69% |
| Tuesday Night | 50°F | Light Rain Likely | 21 to 26 mph SSE | 63% |
Forecast source: National Weather Service (api.weather.gov) for Westport (46.892, -124.120). Updated through the day.
Growing snapshot for Westport
Last spring frost
Mar 29
First fall frost
Nov 7
Growing season
224 days
Hardiness zone
9a
More local growing data for Westport: nearby ZIP 98595 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Grayland, Wa (6.7 mi from Westport). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.