Markham, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Markham, a community in Grays Harbor County, Washington.
This Afternoon
64°F
Mostly Sunny
Mostly sunny. High near 64, with temperatures falling to around 62 in the afternoon. Northwest wind around 9 mph.
7-day forecast for Markham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Mostly Sunny | 9 mph NW | 0% |
| Tonight | 53°F | Partly Cloudy | 5 to 8 mph NW | 0% |
| Sunday | 65°F | Mostly Sunny | 5 to 12 mph NNW | 0% |
| Sunday Night | 53°F | Mostly Cloudy | 6 to 12 mph NW | 0% |
| Monday | 66°F | Partly Sunny | 5 to 13 mph NW | 0% |
| Monday Night | 54°F | Mostly Cloudy | 8 to 13 mph NW | 0% |
| Tuesday | 64°F | Partly Sunny | 6 to 10 mph NW | 1% |
| Tuesday Night | 53°F | Mostly Cloudy then Slight Chance Light Rain | 3 to 10 mph WSW | 20% |
| Wednesday | 63°F | Slight Chance Light Rain then Partly Sunny | 3 to 9 mph W | 20% |
| Wednesday Night | 51°F | Mostly Cloudy | 6 to 9 mph NNW | 9% |
| Thursday | 63°F | Mostly Cloudy | 5 to 12 mph NNE | 11% |
| Thursday Night | 51°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 12 mph NNW | 20% |
| Friday | 63°F | Slight Chance Light Rain then Partly Sunny | 6 to 12 mph NNW | 20% |
| Friday Night | 50°F | Mostly Cloudy | 5 to 12 mph NNW | 10% |
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 Sep 20, 2026.