Clear Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clear Lake, a community in Skagit County, Washington.
This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. West northwest wind around 2 mph.
7-day forecast for Clear Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 2 mph WNW | 0% |
| Tonight | 51°F | Mostly Clear | 0 mph | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph WNW | 0% |
| Sunday Night | 51°F | Mostly Cloudy | 1 mph N | 0% |
| Monday | 71°F | Partly Sunny | 2 mph WSW | 0% |
| Monday Night | 51°F | Partly Cloudy | 2 mph W | 0% |
| Tuesday | 68°F | Partly Sunny | 2 mph WSW | 1% |
| Tuesday Night | 49°F | Mostly Cloudy | 2 mph S | 11% |
| Wednesday | 66°F | Partly Sunny | 1 mph S | 14% |
| Wednesday Night | 48°F | Mostly Cloudy | 1 mph ENE | 11% |
| Thursday | 65°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 3 mph NW | 15% |
| Thursday Night | 48°F | Chance Light Rain | 0 to 3 mph NW | 28% |
| Friday | 64°F | Chance Light Rain | 0 to 3 mph NW | 28% |
| Friday Night | 46°F | Slight Chance Light Rain | 0 to 3 mph ENE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Clear Lake (48.448, -122.239). Updated through the day.
Growing snapshot for Clear Lake
Last spring frost
Mar 27
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8b
More local growing data for Clear Lake: nearby ZIP 98235 weather · frost dates · planting calendar · Washington frost dates
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Sedro-Woolley
Climate data from the nearest NOAA station, Sedro-Woolley, Wa (2.3 mi from Clear Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.