What is the soil temperature in ZIP code 02186 today?

About 52°F on average in the top 4 inches (0–10 cm), low 48°F and high 56°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 6.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 02186?

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

ZIP 02186 · Milton, MA · Nov 11, 2026

Soil temperature for ZIP code 02186

52°Faverage today, 0–4 in deep (modelled)
low 48°F · high 56°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 6.9 km from the ZIP centre point

On a week ago

10° cooler

62°F on Nov 4

5-day mean

53°F

what the verdicts use

Held 55°F last spring

May 6

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	62.4°F	56.6°F	68.3°F	analysis
Nov 5	64.5°F	60.6°F	69.6°F	analysis
Nov 6	64.7°F	63.5°F	65.6°F	analysis
Nov 7	59.2°F	56.8°F	62.5°F	analysis
Nov 8	53.7°F	50.8°F	56.6°F	analysis
Nov 9	51.5°F	50.1°F	52.7°F	analysis
Nov 10	50.9°F	46.7°F	54.4°F	analysis
Today	52.1°F	48.5°F	55.7°F	analysis
Nov 12	51.5°F	49.6°F	53.9°F	forecast
Nov 13	45.2°F	41.6°F	48.5°F	forecast
Nov 14	41.5°F	41.1°F	41.9°F	forecast
Nov 15	42.2°F	37.8°F	46.5°F	forecast
Nov 16	43.6°F	39.2°F	47.8°F	forecast
Nov 17	44.1°F	39.3°F	48.6°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 10
50°F	Pre-emergent window opens	Apr 27
55°F	Crabgrass can germinate	May 6
60°F	Tomatoes	Jun 5
65°F	Warm-season grass seed	Jun 6

Boston, MA, 13 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

02136 49°F · 02126 52°F · 02124 52°F · 02169 52°F · 02131 52°F · 02170 52°F · 02122 52°F · 02121 52°F

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

Questions

What is the soil temperature in ZIP code 02186 today?: About 52°F on average in the top 4 inches (0–10 cm), low 48°F and high 56°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 6.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 02186?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 27 and 55°F from May 6.

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).