What is the soil temperature in ZIP code 08865 today?

About 48°F on average in the top 4 inches (0–10 cm), low 45°F and high 50°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 9.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 08865?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 6 and 55°F from May 27.

ZIP 08865 · Phillipsburg, NJ · Nov 11, 2026

Soil temperature for ZIP code 08865

48°Faverage today, 0–4 in deep (modelled)
low 45°F · high 50°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.8 km from the ZIP centre point

On a week ago

6° cooler

54°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

May 27

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	54.5°F	51.2°F	57.9°F	analysis
Nov 5	57.2°F	55.3°F	59.6°F	analysis
Nov 6	59.9°F	59.5°F	60.2°F	analysis
Nov 7	55.6°F	53.9°F	57.0°F	analysis
Nov 8	50.8°F	49.6°F	51.8°F	analysis
Nov 9	48.5°F	46.5°F	49.6°F	analysis
Nov 10	47.0°F	44.0°F	49.8°F	analysis
Today	48.0°F	44.7°F	50.3°F	analysis
Nov 12	49.8°F	49.2°F	50.3°F	forecast
Nov 13	45.9°F	43.3°F	48.3°F	forecast
Nov 14	41.2°F	40.0°F	41.7°F	forecast
Nov 15	39.4°F	37.1°F	40.7°F	forecast
Nov 16	40.8°F	38.1°F	42.5°F	forecast
Nov 17	39.7°F	36.1°F	42.3°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	Mar 23
50°F	Pre-emergent window opens	May 6
55°F	Crabgrass can germinate	May 27
60°F	Tomatoes	Jun 6
65°F	Warm-season grass seed	not reached

Allentown, PA, 31 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

08886 49°F · 18040 48°F · 08804 49°F · 18063 48°F · 18085 48°F · 18042 48°F · 08802 49°F · 18045 48°F

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

Questions

What is the soil temperature in ZIP code 08865 today?: About 48°F on average in the top 4 inches (0–10 cm), low 45°F and high 50°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 9.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 08865?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 6 and 55°F from May 27.

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).