What is the soil temperature in ZIP code 49817 today?

About 45°F on average in the top 4 inches (0–10 cm), low 42°F and high 47°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 5.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 49817?

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 49817 · Michigan · Nov 11, 2026

Soil temperature for ZIP code 49817

45°Faverage today, 0–4 in deep (modelled)
low 42°F · high 47°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 5.6 km from the ZIP centre point

On a week ago

13° 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	57.0°F	59.1°F	analysis
Nov 5	50.1°F	44.5°F	54.8°F	analysis
Nov 6	41.4°F	40.6°F	42.2°F	analysis
Nov 7	40.2°F	35.9°F	44.3°F	analysis
Nov 8	44.4°F	40.9°F	47.4°F	analysis
Nov 9	45.9°F	43.6°F	47.5°F	analysis
Nov 10	46.9°F	42.9°F	49.6°F	analysis
Today	44.6°F	41.8°F	46.7°F	analysis
Nov 12	39.8°F	38.2°F	42.0°F	forecast
Nov 13	36.4°F	35.0°F	37.7°F	forecast
Nov 14	38.5°F	36.8°F	40.1°F	forecast
Nov 15	39.8°F	38.8°F	41.0°F	forecast
Nov 16	39.7°F	36.1°F	41.6°F	forecast
Nov 17	41.4°F	37.7°F	44.8°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 15
50°F	Pre-emergent window opens	May 26
55°F	Crabgrass can germinate	May 28
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Nearby ZIP codes

Today's modelled average.

49864 46°F · 49854 44°F · 49835 46°F · 49895 43°F · 49878 44°F · 49840 44°F · 49872 44°F · 49837 45°F

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

Questions

What is the soil temperature in ZIP code 49817 today?: About 45°F on average in the top 4 inches (0–10 cm), low 42°F and high 47°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 5.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 49817?: 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).