What is the soil temperature in ZIP code 99136 today?

About 52°F on average in the top 4 inches (0–10 cm), low 49°F and high 57°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 9.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 99136?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 6 and 55°F from May 2.

ZIP 99136 · Washington · Nov 11, 2026

Soil temperature for ZIP code 99136

52°Faverage today, 0–4 in deep (modelled)
low 49°F · high 57°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.2 km from the ZIP centre point

On a week ago

4° warmer

47°F on Nov 4

5-day mean

51°F

what the verdicts use

Held 55°F last spring

May 2

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	47.3°F	43.8°F	52.6°F	analysis
Nov 5	47.7°F	43.8°F	54.0°F	analysis
Nov 6	45.9°F	43.1°F	49.9°F	analysis
Nov 7	49.0°F	45.6°F	55.2°F	analysis
Nov 8	51.3°F	49.2°F	54.7°F	analysis
Nov 9	50.8°F	47.9°F	55.5°F	analysis
Nov 10	50.6°F	48.9°F	52.5°F	analysis
Today	51.7°F	49.2°F	56.7°F	analysis
Nov 12	51.1°F	48.5°F	54.8°F	forecast
Nov 13	49.5°F	47.4°F	52.4°F	forecast
Nov 14	50.8°F	48.8°F	53.7°F	forecast
Nov 15	47.7°F	45.6°F	50.3°F	forecast
Nov 16	49.9°F	48.8°F	52.0°F	forecast
Nov 17	47.0°F	44.8°F	50.3°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	Feb 3
50°F	Pre-emergent window opens	Apr 6
55°F	Crabgrass can germinate	May 2
60°F	Tomatoes	May 4
65°F	Warm-season grass seed	Jun 15

Pullman, WA, 59 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

99143 52°F · 99333 52°F · 99359 52°F · 99371 52°F · 99105 52°F · 99125 52°F · 99335 52°F · 99347 51°F

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

Questions

What is the soil temperature in ZIP code 99136 today?: About 52°F on average in the top 4 inches (0–10 cm), low 49°F and high 57°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 9.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 99136?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 6 and 55°F from May 2.

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).