What is the soil temperature in ZIP code 49821 today?

About 46°F on average in the top 4 inches (0–10 cm), low 44°F and high 46°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 9.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 49821?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 26 and 55°F from May 28.

ZIP 49821 · Michigan · Nov 11, 2026

Soil temperature for ZIP code 49821

46°Faverage today, 0–4 in deep (modelled)
low 44°F · high 46°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.6 km from the ZIP centre point

On a week ago

12° cooler

58°F on Nov 4

5-day mean

44°F

what the verdicts use

Held 55°F last spring

May 28

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	57.9°F	57.7°F	58.0°F	analysis
Nov 5	51.2°F	46.5°F	55.2°F	analysis
Nov 6	42.3°F	41.7°F	43.8°F	analysis
Nov 7	39.9°F	39.3°F	40.8°F	analysis
Nov 8	43.3°F	40.0°F	47.2°F	analysis
Nov 9	44.9°F	42.3°F	46.8°F	analysis
Nov 10	46.0°F	43.1°F	49.0°F	analysis
Today	45.6°F	43.8°F	46.5°F	analysis
Nov 12	40.2°F	39.1°F	42.4°F	forecast
Nov 13	37.0°F	36.1°F	37.8°F	forecast
Nov 14	38.0°F	36.2°F	39.9°F	forecast
Nov 15	40.0°F	39.1°F	41.0°F	forecast
Nov 16	37.8°F	37.3°F	38.9°F	forecast
Nov 17	38.7°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	Apr 13
50°F	Pre-emergent window opens	May 26
55°F	Crabgrass can germinate	May 28
60°F	Tomatoes	Jun 6
65°F	Warm-season grass seed	not reached

Nearby ZIP codes

Today's modelled average.

49863 46°F · 49812 46°F · 49848 46°F · 49887 46°F · 49847 45°F · 49886 45°F · 49893 46°F · 49896 45°F

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

Questions

What is the soil temperature in ZIP code 49821 today?: About 46°F on average in the top 4 inches (0–10 cm), low 44°F and high 46°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 9.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 49821?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 26 and 55°F from May 28.

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).