Des Moines, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Des Moines, a city in King County, Washington.
This Afternoon
58°F
Partly Sunny
Partly sunny. High near 58, with temperatures falling to around 53 in the afternoon. North wind around 3 mph.
7-day forecast for Des Moines
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Partly Sunny | 3 mph N | 3% |
| Tonight | 40°F | Partly Cloudy then Patchy Fog | 1 mph ESE | 3% |
| Wednesday | 59°F | Patchy Fog then Slight Chance Light Rain | 5 mph S | 18% |
| Wednesday Night | 49°F | Light Rain | 3 to 9 mph S | 95% |
| Thursday | 59°F | Slight Chance Light Rain then Partly Sunny | 5 to 8 mph SSW | 17% |
| Thursday Night | 47°F | Light Rain | 5 mph S | 77% |
| Friday | 58°F | Light Rain | 7 mph S | 77% |
| Friday Night | 48°F | Chance Light Rain | 5 mph S | 47% |
| Saturday | 61°F | Chance Light Rain | 3 mph S | 31% |
| Saturday Night | 50°F | Light Rain Likely | 3 to 17 mph S | 73% |
| Sunday | 57°F | Light Rain Likely | 5 to 15 mph SSW | 73% |
| Sunday Night | 45°F | Slight Chance Light Rain | 5 mph SE | 22% |
| Monday | 57°F | Chance Light Rain | 5 mph SE | 53% |
| Monday Night | 48°F | Light Rain Likely | 5 to 9 mph S | 70% |
Forecast source: National Weather Service (api.weather.gov) for Des Moines (47.389, -122.318). Updated through the day.
Growing snapshot for Des Moines
Last spring frost
Mar 2
First fall frost
Nov 23
Growing season
266 days
Hardiness zone
9a
More local growing data for Des Moines: nearby ZIP 98198 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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Black Diamond
Bothell
Boulevard Park
Bryn Mawr-Skyway
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Carnation
Clyde Hill
Cottage Lake
Covington
Duvall
East Renton Highlands
Fairwood
Fall City
Federal Way
Greenwater
High Bridge
Hobart
Hunts Point
Index
Issaquah
Kenmore
Kent
Kirkland
Lake Forest Park
Climate data from the nearest NOAA station, Seattle Tacoma Intl Ap, Wa (3.7 mi from Des Moines). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.