What is the soil temperature in ZIP code 46989 today?

About 52°F on average in the top 4 inches (0–10 cm), low 48°F and high 55°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 5.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 46989?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 12 and 55°F from May 17.

ZIP 46989 · Hartford City, IN · Nov 11, 2026

Soil temperature for ZIP code 46989

52°Faverage today, 0–4 in deep (modelled)
low 48°F · high 55°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 5.9 km from the ZIP centre point

On a week ago

13° cooler

64°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

May 17

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	64.4°F	64.0°F	65.1°F	analysis
Nov 5	57.6°F	55.0°F	59.8°F	analysis
Nov 6	53.1°F	51.6°F	55.7°F	analysis
Nov 7	48.5°F	46.0°F	49.8°F	analysis
Nov 8	46.4°F	42.0°F	51.2°F	analysis
Nov 9	49.5°F	45.1°F	53.6°F	analysis
Nov 10	51.8°F	47.6°F	56.0°F	analysis
Today	51.7°F	47.6°F	55.4°F	analysis
Nov 12	49.8°F	48.0°F	52.8°F	forecast
Nov 13	42.9°F	40.4°F	44.5°F	forecast
Nov 14	39.6°F	36.4°F	42.5°F	forecast
Nov 15	40.2°F	36.1°F	43.3°F	forecast
Nov 16	39.9°F	35.5°F	43.4°F	forecast
Nov 17	41.0°F	36.1°F	45.5°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 5
50°F	Pre-emergent window opens	Apr 12
55°F	Crabgrass can germinate	May 17
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	Jun 6

Marion, IN, 19 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

46957 52°F · 46930 52°F · 46933 52°F · 46938 52°F · 47348 52°F · 47342 52°F · 46953 52°F · 47338 52°F

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

Questions

What is the soil temperature in ZIP code 46989 today?: About 52°F on average in the top 4 inches (0–10 cm), low 48°F and high 55°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 5.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 46989?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 12 and 55°F from May 17.

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).