What is the soil temperature in ZIP code 37879 today?

About 52°F on average in the top 4 inches (0–10 cm), low 49°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 3.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 37879?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 5 and 55°F from Apr 13.

ZIP 37879 · Morristown, TN · Nov 11, 2026

Soil temperature for ZIP code 37879

52°Faverage today, 0–4 in deep (modelled)
low 49°F · high 55°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 3.2 km from the ZIP centre point

On a week ago

9° cooler

61°F on Nov 4

5-day mean

51°F

what the verdicts use

Held 55°F last spring

Apr 13

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	61.2°F	59.5°F	62.8°F	analysis
Nov 5	63.0°F	62.0°F	64.2°F	analysis
Nov 6	58.8°F	56.6°F	60.2°F	analysis
Nov 7	52.9°F	51.0°F	55.5°F	analysis
Nov 8	49.5°F	46.1°F	52.1°F	analysis
Nov 9	49.5°F	45.9°F	53.0°F	analysis
Nov 10	50.9°F	46.9°F	54.8°F	analysis
Today	51.9°F	48.7°F	54.8°F	analysis
Nov 12	51.4°F	49.5°F	53.0°F	forecast
Nov 13	44.2°F	42.7°F	47.1°F	forecast
Nov 14	40.7°F	38.8°F	42.4°F	forecast
Nov 15	40.4°F	37.1°F	43.6°F	forecast
Nov 16	42.0°F	38.6°F	45.2°F	forecast
Nov 17	42.7°F	39.2°F	46.0°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 15
50°F	Pre-emergent window opens	Mar 5
55°F	Crabgrass can germinate	Apr 13
60°F	Tomatoes	May 19
65°F	Warm-season grass seed	Jun 9

Morristown, TN, 35 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

37752 52°F · 24248 52°F · 37881 52°F · 37825 52°F · 37888 52°F · 37724 52°F · 37708 53°F · 24281 52°F

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

Questions

What is the soil temperature in ZIP code 37879 today?: About 52°F on average in the top 4 inches (0–10 cm), low 49°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 3.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 37879?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 5 and 55°F from Apr 13.

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).