Lewisville, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewisville, a community in Clark County, Washington.
Today
76°F
Patchy Fog then Mostly Sunny
Patchy fog before 9am. Mostly sunny, with a high near 76. West northwest wind 0 to 3 mph.
7-day forecast for Lewisville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Patchy Fog then Mostly Sunny | 0 to 3 mph WNW | 0% |
| Tonight | 52°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 79°F | Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Monday | 74°F | Patchy Fog then Mostly Sunny | 1 to 6 mph NW | 0% |
| Monday Night | 51°F | Partly Cloudy then Patchy Fog | 0 to 6 mph NNW | 0% |
| Tuesday | 70°F | Patchy Fog then Partly Sunny | 0 to 5 mph NW | 0% |
| Tuesday Night | 49°F | Partly Cloudy then Patchy Fog | 0 to 5 mph NNW | 0% |
| Wednesday | 69°F | Areas Of Fog then Partly Sunny | 0 to 3 mph NW | 0% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 3 mph NNW | 1% |
| Thursday | 68°F | Partly Sunny | 0 to 5 mph NNW | 14% |
| Thursday Night | 49°F | Mostly Cloudy | 1 to 5 mph NNW | 14% |
| Friday | 67°F | Partly Sunny | 1 to 5 mph NW | 10% |
| Friday Night | 48°F | Partly Cloudy | 1 to 5 mph N | 9% |
Forecast source: National Weather Service (api.weather.gov) for Lewisville (45.817, -122.508). Updated through the day.
Growing snapshot for Lewisville
Last spring frost
Apr 26
First fall frost
Oct 16
Growing season
174 days
Hardiness zone
8b
More local growing data for Lewisville: nearby ZIP 98604 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Battle Ground, Wa (2.5 mi from Lewisville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.