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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

WhenTempForecastWindPrecip
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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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.