What is the soil temperature in ZIP code 67621 today?

About 56°F on average in the top 4 inches (0–10 cm), low 52°F and high 59°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 13.5 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 67621?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 20 and 55°F from Mar 21.

ZIP 67621 · Kansas · Nov 11, 2026

Soil temperature for ZIP code 67621

56°Faverage today, 0–4 in deep (modelled)
low 52°F · high 59°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 13.5 km from the ZIP centre point

On a week ago

5° warmer

51°F on Nov 4

5-day mean

54°F

what the verdicts use

Held 55°F last spring

Mar 21

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	50.9°F	47.8°F	54.1°F	analysis
Nov 5	50.4°F	47.6°F	53.8°F	analysis
Nov 6	48.1°F	44.5°F	51.4°F	analysis
Nov 7	49.6°F	44.7°F	56.3°F	analysis
Nov 8	54.0°F	50.4°F	58.6°F	analysis
Nov 9	55.2°F	51.0°F	60.6°F	analysis
Nov 10	55.4°F	51.9°F	58.8°F	analysis
Today	55.5°F	52.4°F	59.1°F	analysis
Nov 12	52.9°F	50.1°F	55.1°F	forecast
Nov 13	48.2°F	45.4°F	50.2°F	forecast
Nov 14	45.7°F	42.9°F	48.6°F	forecast
Nov 15	47.6°F	45.2°F	51.7°F	forecast
Nov 16	48.9°F	47.2°F	51.0°F	forecast
Nov 17	49.7°F	46.5°F	54.1°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 6
50°F	Pre-emergent window opens	Mar 20
55°F	Crabgrass can germinate	Mar 21
60°F	Tomatoes	May 11
65°F	Warm-season grass seed	May 26

Nearby ZIP codes

Today's modelled average.

66951 55°F · 66932 55°F · 67661 56°F · 67644 56°F · 67628 55°F · 67639 56°F · 68960 54°F · 66967 55°F

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

Questions

What is the soil temperature in ZIP code 67621 today?: About 56°F on average in the top 4 inches (0–10 cm), low 52°F and high 59°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 13.5 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 67621?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 20 and 55°F from Mar 21.

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).