Lyman, WA Weather & Growing Conditions
Today
56°F
Partly Sunny then Slight Chance Light Rain
A slight chance of rain after 4pm. Partly sunny. High near 56, with temperatures falling to around 52 in the afternoon. East southeast wind 5 to 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 56°F | Partly Sunny then Slight Chance Light Rain | 5 to 12 mph ESE | 23% |
| Tonight | 46°F | Light Rain | 6 to 14 mph S | 96% |
| Thursday | 52°F | Chance Light Rain then Partly Sunny | 8 mph S | 25% |
| Thursday Night | 46°F | Light Rain | 7 to 16 mph SE | 94% |
| Friday | 50°F | Light Rain | 7 to 16 mph ESE | 94% |
| Friday Night | 47°F | Light Rain | 7 to 12 mph ESE | 76% |
| Saturday | 58°F | Chance Light Rain | 8 to 12 mph ESE | 38% |
| Saturday Night | 48°F | Rain | 8 to 16 mph SE | 84% |
| Sunday | 51°F | Light Rain | 1 to 13 mph S | 84% |
| Sunday Night | 42°F | Slight Chance Light Rain | 1 to 9 mph ESE | 24% |
| Monday | 51°F | Chance Light Rain | 6 to 9 mph E | 50% |
| Monday Night | 46°F | Light Rain Likely | 6 to 14 mph ESE | 67% |
| Tuesday | 53°F | Light Rain Likely | 10 to 15 mph ESE | 67% |
| Tuesday Night | 48°F | Light Rain Likely | 10 to 15 mph ESE | 59% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lyman, WA
Last spring frost
Mar 27
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8b
Explore more for Lyman, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Sedro-Woolley, Wa (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.