What is the soil temperature in ZIP code 49401 today?

About 48°F on average in the top 4 inches (0–10 cm), low 46°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 4.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 49401?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 17 and 55°F from May 26.

ZIP 49401 · Allendale, MI · Nov 11, 2026

Soil temperature for ZIP code 49401

48°Faverage today, 0–4 in deep (modelled)
low 46°F · high 50°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 4.2 km from the ZIP centre point

On a week ago

16° cooler

64°F on Nov 4

5-day mean

48°F

what the verdicts use

Held 55°F last spring

May 26

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	64.1°F	62.2°F	64.9°F	analysis
Nov 5	56.0°F	53.8°F	58.8°F	analysis
Nov 6	48.6°F	47.6°F	51.0°F	analysis
Nov 7	47.1°F	45.8°F	48.5°F	analysis
Nov 8	48.1°F	45.2°F	51.7°F	analysis
Nov 9	48.4°F	45.4°F	50.1°F	analysis
Nov 10	50.5°F	48.0°F	52.6°F	analysis
Today	48.4°F	46.5°F	49.6°F	analysis
Nov 12	44.6°F	42.6°F	47.1°F	forecast
Nov 13	39.7°F	37.3°F	40.9°F	forecast
Nov 14	39.8°F	38.2°F	41.8°F	forecast
Nov 15	39.1°F	37.7°F	41.3°F	forecast
Nov 16	39.1°F	37.7°F	41.3°F	forecast
Nov 17	39.3°F	35.4°F	42.9°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 30
50°F	Pre-emergent window opens	May 17
55°F	Crabgrass can germinate	May 26
60°F	Tomatoes	Jun 5
65°F	Warm-season grass seed	not reached

Grand Rapids, MI, 24 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

49430 48°F · 49404 48°F · 49435 48°F · 49428 48°F · 49426 49°F · 49534 48°F · 49464 49°F · 49448 48°F

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

Questions

What is the soil temperature in ZIP code 49401 today?: About 48°F on average in the top 4 inches (0–10 cm), low 46°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 4.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 49401?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 17 and 55°F from May 26.

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).