What is the soil temperature in ZIP code 46175 today?

About 54°F on average in the top 4 inches (0–10 cm), low 50°F and high 58°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 7.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 46175?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 11 and 55°F from May 16.

ZIP 46175 · Greencastle, IN · Nov 11, 2026

Soil temperature for ZIP code 46175

54°Faverage today, 0–4 in deep (modelled)
low 50°F · high 58°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 7.9 km from the ZIP centre point

On a week ago

10° cooler

65°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

May 16

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	64.8°F	62.5°F	66.9°F	analysis
Nov 5	56.7°F	54.1°F	58.1°F	analysis
Nov 6	54.2°F	52.5°F	56.4°F	analysis
Nov 7	46.7°F	43.3°F	49.0°F	analysis
Nov 8	46.2°F	41.8°F	51.4°F	analysis
Nov 9	49.9°F	45.6°F	54.4°F	analysis
Nov 10	53.5°F	49.4°F	58.3°F	analysis
Today	54.3°F	50.1°F	58.3°F	analysis
Nov 12	51.8°F	49.4°F	54.8°F	forecast
Nov 13	44.4°F	43.3°F	45.6°F	forecast
Nov 14	40.6°F	37.2°F	43.2°F	forecast
Nov 15	40.8°F	36.8°F	44.7°F	forecast
Nov 16	41.4°F	37.5°F	44.7°F	forecast
Nov 17	41.8°F	37.3°F	45.9°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 1
50°F	Pre-emergent window opens	Apr 11
55°F	Crabgrass can germinate	May 16
60°F	Tomatoes	May 19
65°F	Warm-season grass seed	Jun 7

Crawfordsville, IN, 26 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

47989 54°F · 46172 54°F · 46105 54°F · 47954 54°F · 47965 54°F · 47872 55°F · 46135 54°F · 47859 54°F

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

Questions

What is the soil temperature in ZIP code 46175 today?: About 54°F on average in the top 4 inches (0–10 cm), low 50°F and high 58°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 7.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 46175?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 11 and 55°F from May 16.

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).