Monroe, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a city in Snohomish County, Washington.
Today
87°F
Areas Of Smoke
Areas of smoke after 11am. Sunny, with a high near 87. North northwest wind 1 to 6 mph.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Areas Of Smoke | 1 to 6 mph NNW | 0% |
| Tonight | 56°F | Patchy Smoke | 0 to 5 mph NNW | 0% |
| Wednesday | 91°F | Patchy Smoke | 0 to 3 mph NW | 0% |
| Wednesday Night | 59°F | Clear | 0 to 3 mph NNW | 0% |
| Thursday | 92°F | Sunny | 2 mph WNW | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 mph NNE | 0% |
| Friday | 89°F | Sunny | 3 mph SW | 0% |
| Friday Night | 58°F | Mostly Clear | 3 mph N | 0% |
| Saturday | 84°F | Sunny | 0 to 7 mph NNW | 0% |
| Saturday Night | 56°F | Mostly Clear | 0 to 7 mph N | 0% |
| Sunday | 80°F | Mostly Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 55°F | Mostly Clear | 0 to 3 mph N | 2% |
| Monday | 80°F | Mostly Sunny | 2 mph NW | 3% |
| Monday Night | 55°F | Partly Cloudy | 2 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov) for Monroe (47.860, -121.984). Updated through the day.
Growing snapshot for Monroe
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b
More local growing data for Monroe: nearby ZIP 98290 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
Arlington
Arlington Heights
Bothell East
Bothell West
Brier
Bunk Foss
Canyon Creek
Cathcart
Cavalero
Chain Lake
Clearview
Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
Lake Cassidy
Lake Cavanaugh
Lake Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Climate data from the nearest NOAA station, Monroe, Wa (7.6 mi from Monroe). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.