What is the soil temperature in ZIP code 98645 today?

About 53°F on average in the top 4 inches (0–10 cm), low 52°F and high 55°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 9.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 98645?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 1 and 55°F from Jun 14.

ZIP 98645 · West Side Highway, WA · Nov 11, 2026

Soil temperature for ZIP code 98645

53°Faverage today, 0–4 in deep (modelled)
low 52°F · high 55°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.1 km from the ZIP centre point

On a week ago

5° warmer

48°F on Nov 4

5-day mean

51°F

what the verdicts use

Held 55°F last spring

Jun 14

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	47.7°F	46.3°F	49.4°F	analysis
Nov 5	48.7°F	47.6°F	50.3°F	analysis
Nov 6	48.9°F	48.2°F	50.2°F	analysis
Nov 7	50.2°F	48.8°F	52.4°F	analysis
Nov 8	52.0°F	50.8°F	53.4°F	analysis
Nov 9	48.5°F	47.4°F	49.8°F	analysis
Nov 10	50.4°F	49.4°F	51.9°F	analysis
Today	52.8°F	51.7°F	54.9°F	analysis
Nov 12	53.3°F	52.5°F	54.1°F	forecast
Nov 13	50.8°F	49.8°F	52.3°F	forecast
Nov 14	48.0°F	47.6°F	48.7°F	forecast
Nov 15	48.5°F	47.8°F	49.2°F	forecast
Nov 16	46.9°F	45.5°F	47.9°F	forecast
Nov 17	43.9°F	41.9°F	45.4°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	Jan 11
50°F	Pre-emergent window opens	May 1
55°F	Crabgrass can germinate	Jun 14
60°F	Tomatoes	Jun 16
65°F	Warm-season grass seed	not reached

Longview, WA, 26 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

98611 52°F · 98591 53°F · 98649 51°F · 98626 53°F · 98593 53°F · 98542 53°F · 98596 53°F · 98582 53°F

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

Questions

What is the soil temperature in ZIP code 98645 today?: About 53°F on average in the top 4 inches (0–10 cm), low 52°F and high 55°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 9.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 98645?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 1 and 55°F from Jun 14.

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).