What is the soil temperature in ZIP code 04939 today?

About 41°F on average in the top 4 inches (0–10 cm), low 41°F and high 42°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 11.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 04939?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 18 and 55°F from Jun 7.

ZIP 04939 · Maine · Nov 11, 2026

Soil temperature for ZIP code 04939

41°Faverage today, 0–4 in deep (modelled)
low 41°F · high 42°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.2 km from the ZIP centre point

On a week ago

10° cooler

51°F on Nov 4

5-day mean

44°F

what the verdicts use

Held 55°F last spring

Jun 7

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	51.0°F	49.2°F	53.6°F	analysis
Nov 5	53.7°F	51.4°F	56.0°F	analysis
Nov 6	57.2°F	56.4°F	58.2°F	analysis
Nov 7	51.6°F	47.6°F	55.7°F	analysis
Nov 8	44.1°F	42.2°F	46.2°F	analysis
Nov 9	41.4°F	40.7°F	42.2°F	analysis
Nov 10	40.6°F	39.5°F	41.1°F	analysis
Today	41.1°F	40.7°F	41.6°F	analysis
Nov 12	38.3°F	38.1°F	38.5°F	forecast
Nov 13	37.4°F	37.0°F	37.7°F	forecast
Nov 14	37.3°F	36.8°F	37.6°F	forecast
Nov 15	37.9°F	37.1°F	38.8°F	forecast
Nov 16	37.1°F	36.6°F	37.3°F	forecast
Nov 17	36.3°F	36.2°F	36.4°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	Apr 28
50°F	Pre-emergent window opens	May 18
55°F	Crabgrass can germinate	Jun 7
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Bangor, ME, 43 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

04422 41°F · 04479 41°F · 04426 40°F · 04435 41°F · 04930 41°F · 04427 41°F · 04928 41°F · 04481 40°F

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

Questions

What is the soil temperature in ZIP code 04939 today?: About 41°F on average in the top 4 inches (0–10 cm), low 41°F and high 42°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 11.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 04939?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 18 and 55°F from Jun 7.

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).