What is the soil temperature in ZIP code 37620 today?

About 51°F on average in the top 4 inches (0–10 cm), low 47°F and high 54°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 10.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 37620?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 6 and 55°F from May 18.

ZIP 37620 · Bristol, TN · Nov 11, 2026

Soil temperature for ZIP code 37620

51°Faverage today, 0–4 in deep (modelled)
low 47°F · high 54°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.1 km from the ZIP centre point

On a week ago

6° cooler

57°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

May 18

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	56.6°F	55.3°F	57.9°F	analysis
Nov 5	59.8°F	58.2°F	61.6°F	analysis
Nov 6	59.5°F	58.4°F	60.9°F	analysis
Nov 7	53.6°F	52.2°F	56.4°F	analysis
Nov 8	48.2°F	45.2°F	50.3°F	analysis
Nov 9	47.8°F	44.9°F	50.4°F	analysis
Nov 10	49.0°F	45.6°F	52.2°F	analysis
Today	50.6°F	47.2°F	53.6°F	analysis
Nov 12	50.4°F	47.9°F	52.1°F	forecast
Nov 13	42.5°F	40.7°F	45.6°F	forecast
Nov 14	38.9°F	38.4°F	39.7°F	forecast
Nov 15	38.1°F	37.9°F	38.2°F	forecast
Nov 16	37.9°F	37.7°F	38.2°F	forecast
Nov 17	38.5°F	37.5°F	40.6°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	Mar 1
50°F	Pre-emergent window opens	Mar 6
55°F	Crabgrass can germinate	May 18
60°F	Tomatoes	May 20
65°F	Warm-season grass seed	not reached

Bristol, TN, 10 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

24201 51°F · 37618 51°F · 24202 50°F · 24211 50°F · 37688 51°F · 37643 50°F · 24270 50°F · 37617 51°F

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

Questions

What is the soil temperature in ZIP code 37620 today?: About 51°F on average in the top 4 inches (0–10 cm), low 47°F and high 54°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 10.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 37620?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 6 and 55°F from May 18.

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).