Lynden, WA Weather & Growing Conditions
Tonight
36°F
Partly Cloudy
Partly cloudy, with a low around 36. Northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Partly Cloudy | 1 mph NE | 4% |
| Wednesday | 58°F | Mostly Sunny then Slight Chance Light Rain | 2 mph E | 22% |
| Wednesday Night | 46°F | Light Rain | 2 to 8 mph S | 96% |
| Thursday | 56°F | Chance Light Rain | 3 to 8 mph S | 46% |
| Thursday Night | 46°F | Light Rain | 3 to 9 mph SE | 90% |
| Friday | 54°F | Light Rain | 7 to 12 mph SSE | 90% |
| Friday Night | 45°F | Chance Light Rain | 3 to 7 mph ESE | 43% |
| Saturday | 59°F | Chance Light Rain | 7 mph ESE | 47% |
| Saturday Night | 48°F | Light Rain | 7 to 16 mph SSE | 80% |
| Sunday | 55°F | Light Rain | 6 to 12 mph S | 76% |
| Sunday Night | 41°F | Chance Light Rain | 6 mph SE | 33% |
| Monday | 54°F | Light Rain Likely | 6 mph E | 56% |
| Monday Night | 45°F | Light Rain | 6 to 9 mph ESE | 77% |
| Tuesday | 57°F | Light Rain | 9 mph SE | 77% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lynden, WA
Last spring frost
Apr 18
First fall frost
Oct 18
Growing season
185 days
Hardiness zone
8a
Explore more for Lynden, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Clearbrook, Wa (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.