What is the soil temperature in ZIP code 98639 today?

About 49°F on average in the top 4 inches (0–10 cm), low 48°F and high 50°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 12.5 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 98639?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 3 and 55°F from Jun 15.

ZIP 98639 · Washougal, WA · Nov 11, 2026

Soil temperature for ZIP code 98639

49°Faverage today, 0–4 in deep (modelled)
low 48°F · high 50°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 12.5 km from the ZIP centre point

On a week ago

5° warmer

43°F on Nov 4

5-day mean

47°F

what the verdicts use

Held 55°F last spring

Jun 15

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedToo cold
TomatoesToo cold
Peas and lettuceWarm enough

From the 5-day mean of the modelled 0–4 in layer.

Soil temperature, 0–4 in: last 7 days and next 7

°F, modelled. Dots and line: daily average (dashed = forecast); bars: low to high; green band: 50–55°F.

View as table

Day	Average	Low	High
Nov 4	43.3°F	42.0°F	46.0°F	analysis
Nov 5	45.9°F	45.4°F	47.1°F	analysis
Nov 6	45.5°F	44.2°F	47.1°F	analysis
Nov 7	47.7°F	47.1°F	49.3°F	analysis
Nov 8	47.9°F	47.4°F	48.3°F	analysis
Nov 9	45.3°F	44.5°F	46.5°F	analysis
Nov 10	47.8°F	46.2°F	49.4°F	analysis
Today	48.7°F	47.8°F	50.1°F	analysis
Nov 12	48.3°F	47.4°F	49.0°F	forecast
Nov 13	46.6°F	45.8°F	47.8°F	forecast
Nov 14	44.3°F	44.1°F	44.9°F	forecast
Nov 15	43.7°F	43.4°F	43.9°F	forecast
Nov 16	42.9°F	41.7°F	43.8°F	forecast
Nov 17	40.3°F	38.9°F	41.5°F	forecast

Source: NOAA NCEP GFS 0.25°, 0–10 cm soil temperature, run Nov 11, 12:00 UTC (7 am Eastern).

Spring 2026 threshold dates

From the 5-day mean held for 10 days or more.

Soil	What it means	Held from (spring 2026)
40°F	Peas and lettuce	Mar 3
50°F	Pre-emergent window opens	May 3
55°F	Crabgrass can germinate	Jun 15
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Washougal, WA, 31 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

98648 49°F · 97014 49°F · 98610 49°F · 98671 53°F · 97019 53°F · 98605 49°F · 97031 48°F · 97011 49°F

More: crabgrass timing in Washington · every Washington city · how accurate the model is.

Questions

What is the soil temperature in ZIP code 98639 today?: About 49°F on average in the top 4 inches (0–10 cm), low 48°F and high 50°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 12.5 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 98639?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 3 and 55°F from Jun 15.

Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); 2025 Gazetteer ZIP Code Tabulation Areas (ZCTA) and 2024 cartographic boundary state outlines (U.S. Census Bureau).