Fern Prairie, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fern Prairie, a community in Clark County, Washington.
Today
78°F
Mostly Sunny
Mostly sunny, with a high near 78. West wind around 5 mph.
7-day forecast for Fern Prairie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Mostly Sunny | 5 mph W | 0% |
| Tonight | 52°F | Mostly Clear | 3 mph NNE | 0% |
| Sunday | 82°F | Sunny | 1 to 7 mph NW | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 7 mph NNW | 0% |
| Monday | 76°F | Mostly Sunny | 1 to 7 mph WNW | 0% |
| Monday Night | 52°F | Partly Cloudy | 1 to 7 mph N | 0% |
| Tuesday | 72°F | Patchy Fog then Mostly Sunny | 1 to 7 mph NW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 1 to 7 mph N | 0% |
| Wednesday | 71°F | Patchy Fog then Partly Sunny | 1 to 5 mph NNW | 0% |
| Wednesday Night | 50°F | Mostly Cloudy | 1 to 5 mph N | 1% |
| Thursday | 71°F | Partly Sunny | 1 to 7 mph NNW | 11% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 7 mph NW | 11% |
| Friday | 69°F | Partly Sunny | 2 to 7 mph WNW | 10% |
| Friday Night | 48°F | Partly Cloudy | 3 to 7 mph NNW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Fern Prairie (45.637, -122.396). Updated through the day.
Growing snapshot for Fern Prairie
Last spring frost
Mar 26
First fall frost
Nov 17
Growing season
237 days
Hardiness zone
8b
More local growing data for Fern Prairie: nearby ZIP 98607 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Troutdale, Or (6.2 mi from Fern Prairie). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.