What is the soil temperature in ZIP code 49340 today?

About 47°F on average in the top 4 inches (0–10 cm), low 45°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 15.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 49340?

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 49340 · Mount Pleasant, MI · Nov 11, 2026

Soil temperature for ZIP code 49340

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

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 15.9 km from the ZIP centre point

On a week ago

17° cooler

63°F on Nov 4

5-day mean

46°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	63.4°F	63.1°F	64.0°F	analysis
Nov 5	55.1°F	52.3°F	58.9°F	analysis
Nov 6	46.0°F	43.9°F	49.2°F	analysis
Nov 7	44.1°F	42.2°F	46.1°F	analysis
Nov 8	45.1°F	41.8°F	49.6°F	analysis
Nov 9	47.3°F	44.5°F	48.9°F	analysis
Nov 10	48.2°F	44.9°F	51.5°F	analysis
Today	46.7°F	45.2°F	47.4°F	analysis
Nov 12	43.2°F	41.3°F	45.6°F	forecast
Nov 13	38.3°F	37.9°F	39.2°F	forecast
Nov 14	37.6°F	36.1°F	39.4°F	forecast
Nov 15	37.7°F	36.9°F	38.8°F	forecast
Nov 16	37.0°F	35.5°F	38.9°F	forecast
Nov 17	37.8°F	35.5°F	41.3°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 11
50°F	Pre-emergent window opens	May 17
55°F	Crabgrass can germinate	May 27
60°F	Tomatoes	Jun 6
65°F	Warm-season grass seed	not reached

Mount Pleasant, MI, 28 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

49332 46°F · 48893 47°F · 49310 47°F · 49305 46°F · 49342 46°F · 48896 47°F · 49320 46°F · 48886 46°F

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

Questions

What is the soil temperature in ZIP code 49340 today?: About 47°F on average in the top 4 inches (0–10 cm), low 45°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 15.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 49340?: 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).