What is the soil temperature in ZIP code 98827 today?

About 42°F on average in the top 4 inches (0–10 cm), low 41°F and high 45°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 11.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 98827?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 24.

ZIP 98827 · Washington · Nov 11, 2026

Soil temperature for ZIP code 98827

42°Faverage today, 0–4 in deep (modelled)
low 41°F · high 45°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.8 km from the ZIP centre point

On a week ago

5° warmer

37°F on Nov 4

5-day mean

40°F

what the verdicts use

Held 55°F last spring

May 24

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 lettuceToo cold

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	37.4°F	35.2°F	41.1°F	analysis
Nov 5	38.7°F	37.0°F	41.6°F	analysis
Nov 6	38.6°F	37.9°F	39.5°F	analysis
Nov 7	38.0°F	36.2°F	41.1°F	analysis
Nov 8	40.6°F	38.8°F	43.5°F	analysis
Nov 9	39.0°F	37.7°F	40.2°F	analysis
Nov 10	39.5°F	38.2°F	41.2°F	analysis
Today	42.3°F	40.9°F	45.0°F	analysis
Nov 12	42.2°F	40.8°F	44.5°F	forecast
Nov 13	42.4°F	40.0°F	46.6°F	forecast
Nov 14	43.0°F	41.5°F	44.7°F	forecast
Nov 15	39.0°F	38.1°F	40.0°F	forecast
Nov 16	38.7°F	38.0°F	40.5°F	forecast
Nov 17	36.5°F	35.6°F	37.5°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	Apr 7
50°F	Pre-emergent window opens	May 2
55°F	Crabgrass can germinate	May 24
60°F	Tomatoes	Jun 16
65°F	Warm-season grass seed	not reached

Nearby ZIP codes

Today's modelled average.

98819 44°F · 98844 43°F · 98855 45°F · 98849 47°F · 98862 41°F · 98829 45°F · 98841 44°F · 98840 48°F

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

Questions

What is the soil temperature in ZIP code 98827 today?: About 42°F on average in the top 4 inches (0–10 cm), low 41°F and high 45°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 11.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 98827?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 24.

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).