Marblemount, WA Weather & Growing Conditions
Today
54°F
Mostly Sunny
Mostly sunny, with a high near 54. Southwest wind 3 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Tonight | 41°F | Mostly Clear | 7 mph SW | 0% |
| Sunday | 56°F | Sunny | 6 to 9 mph SSW | 0% |
| Sunday Night | 42°F | Mostly Clear | 3 to 8 mph WNW | 0% |
| Monday | 52°F | Mostly Sunny | 6 to 12 mph W | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 to 12 mph W | 0% |
| Tuesday | 48°F | Mostly Sunny | 3 to 12 mph NW | 0% |
| Tuesday Night | 34°F | Partly Cloudy | 6 to 12 mph S | 12% |
| Wednesday | 45°F | Mostly Sunny then Slight Chance Light Rain | 6 to 12 mph SSW | 22% |
| Wednesday Night | 36°F | Slight Chance Light Rain then Slight Chance Light Snow | 7 to 12 mph SSW | 22% |
| Thursday | 44°F | Mostly Cloudy then Chance Light Rain | 5 to 9 mph SSE | 25% |
| Thursday Night | 35°F | Chance Light Snow | 9 mph N | 33% |
| Friday | 42°F | Chance Light Snow | 6 to 9 mph N | 33% |
| Friday Night | 33°F | Slight Chance Light Snow | 8 to 13 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marblemount, WA
Last spring frost
Apr 2
First fall frost
Nov 14
Growing season
224 days
Hardiness zone
7a
Explore more for Marblemount, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Newhalem, Wa (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.