What is the soil temperature in ZIP code 23866 today?

About 58°F on average in the top 4 inches (0–10 cm), low 54°F and high 61°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 13.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 23866?

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 Apr 13.

ZIP 23866 · Smithfield, VA · Nov 11, 2026

Soil temperature for ZIP code 23866

58°Faverage today, 0–4 in deep (modelled)
low 54°F · high 61°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 13.1 km from the ZIP centre point

On a week ago

5° cooler

63°F on Nov 4

5-day mean

57°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	62.7°F	58.8°F	66.9°F	analysis
Nov 5	67.4°F	64.5°F	70.6°F	analysis
Nov 6	68.3°F	67.1°F	69.2°F	analysis
Nov 7	60.3°F	58.9°F	62.9°F	analysis
Nov 8	54.3°F	51.0°F	56.6°F	analysis
Nov 9	55.1°F	51.5°F	57.9°F	analysis
Nov 10	55.7°F	51.6°F	59.4°F	analysis
Today	57.9°F	53.9°F	61.0°F	analysis
Nov 12	58.6°F	56.2°F	60.6°F	forecast
Nov 13	55.5°F	53.7°F	58.4°F	forecast
Nov 14	49.3°F	46.9°F	51.0°F	forecast
Nov 15	46.0°F	42.5°F	48.1°F	forecast
Nov 16	46.0°F	42.4°F	48.9°F	forecast
Nov 17	47.5°F	44.7°F	49.8°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 6
50°F	Pre-emergent window opens	Mar 6
55°F	Crabgrass can germinate	Apr 13
60°F	Tomatoes	Apr 14
65°F	Warm-season grass seed	May 19

Suffolk, VA, 33 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

23898 58°F · 23888 58°F · 23487 58°F · 23846 58°F · 23878 58°F · 23839 58°F · 23430 58°F · 23315 58°F

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

Questions

What is the soil temperature in ZIP code 23866 today?: About 58°F on average in the top 4 inches (0–10 cm), low 54°F and high 61°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 13.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 23866?: 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 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).