Markham, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Markham, a community in Grays Harbor County, Washington.
Overnight
56°F
Mostly Clear
Mostly clear, with a low around 56. North northeast wind around 6 mph.
7-day forecast for Markham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Clear | 6 mph NNE | 0% |
| Tuesday | 75°F | Sunny | 5 to 12 mph N | 0% |
| Tuesday Night | 59°F | Mostly Clear | 3 to 12 mph NNW | 0% |
| Wednesday | 75°F | Patchy Smoke | 3 to 10 mph NNW | 0% |
| Wednesday Night | 57°F | Partly Cloudy | 2 to 10 mph NW | 0% |
| Thursday | 70°F | Mostly Sunny | 2 to 10 mph WNW | 0% |
| Thursday Night | 57°F | Partly Cloudy | 6 to 10 mph WNW | 0% |
| Friday | 69°F | Mostly Sunny | 6 to 15 mph WNW | 0% |
| Friday Night | 57°F | Partly Cloudy | 13 to 16 mph NW | 0% |
| Saturday | 67°F | Mostly Sunny | 13 to 17 mph NW | 0% |
| Saturday Night | 57°F | Partly Cloudy | 13 to 18 mph NW | 0% |
| Sunday | 65°F | Partly Sunny | 12 to 15 mph NW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 10 to 16 mph NW | 0% |
| Monday | 65°F | Partly Sunny | 9 to 14 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Markham (46.914, -123.988). Updated through the day.
Growing snapshot for Markham
Last spring frost
Mar 29
First fall frost
Nov 15
Growing season
234 days
Hardiness zone
8b
More local growing data for Markham: nearby ZIP 98520 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Aberdeen, Wa (1.6 mi from Markham). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.