What is the soil temperature in ZIP code 49446 today?

About 48°F on average in the top 4 inches (0–10 cm), low 47°F and high 49°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 10.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 49446?

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 27.

ZIP 49446 · Muskegon, MI · Nov 11, 2026

Soil temperature for ZIP code 49446

48°Faverage today, 0–4 in deep (modelled)
low 47°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.8 km from the ZIP centre point

On a week ago

15° cooler

63°F on Nov 4

5-day mean

49°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	63.2°F	60.9°F	64.5°F	analysis
Nov 5	53.6°F	51.0°F	56.2°F	analysis
Nov 6	46.6°F	45.6°F	48.5°F	analysis
Nov 7	46.2°F	44.5°F	48.2°F	analysis
Nov 8	48.6°F	45.6°F	51.9°F	analysis
Nov 9	48.9°F	45.6°F	50.6°F	analysis
Nov 10	51.1°F	48.2°F	53.4°F	analysis
Today	48.5°F	47.0°F	49.4°F	analysis
Nov 12	44.4°F	42.6°F	46.9°F	forecast
Nov 13	39.1°F	36.8°F	40.6°F	forecast
Nov 14	42.1°F	40.0°F	44.2°F	forecast
Nov 15	42.6°F	40.9°F	44.1°F	forecast
Nov 16	40.2°F	37.2°F	42.7°F	forecast
Nov 17	42.3°F	38.4°F	45.6°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	Apr 9
50°F	Pre-emergent window opens	May 17
55°F	Crabgrass can germinate	May 27
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Muskegon, MI, 36 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

49455 48°F · 49437 48°F · 49452 48°F · 49436 49°F · 49461 48°F · 49420 47°F · 49425 47°F · 49421 47°F

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

Questions

What is the soil temperature in ZIP code 49446 today?: About 48°F on average in the top 4 inches (0–10 cm), low 47°F and high 49°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 10.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 49446?: 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 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).