What is the soil temperature in ZIP code 45864 today?

About 51°F on average in the top 4 inches (0–10 cm), low 47°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 14.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 45864?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 and 55°F from May 17.

ZIP 45864 · Defiance, OH · Nov 11, 2026

Soil temperature for ZIP code 45864

51°Faverage today, 0–4 in deep (modelled)
low 47°F · high 55°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 14.6 km from the ZIP centre point

On a week ago

14° cooler

65°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	64.7°F	64.1°F	65.4°F	analysis
Nov 5	59.6°F	57.5°F	61.7°F	analysis
Nov 6	54.6°F	53.5°F	56.8°F	analysis
Nov 7	50.0°F	47.6°F	51.4°F	analysis
Nov 8	47.5°F	42.7°F	52.5°F	analysis
Nov 9	49.9°F	45.4°F	53.6°F	analysis
Nov 10	51.9°F	47.1°F	56.6°F	analysis
Today	51.1°F	46.7°F	54.8°F	analysis
Nov 12	49.9°F	48.3°F	52.1°F	forecast
Nov 13	43.4°F	41.5°F	44.9°F	forecast
Nov 14	39.6°F	35.5°F	42.9°F	forecast
Nov 15	39.7°F	35.3°F	43.1°F	forecast
Nov 16	40.1°F	34.8°F	44.4°F	forecast
Nov 17	42.0°F	36.8°F	46.3°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	Mar 6
50°F	Pre-emergent window opens	Apr 13
55°F	Crabgrass can germinate	May 17
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	Jun 6

Defiance, OH, 27 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

45848 50°F · 45831 51°F · 43548 51°F · 45875 50°F · 45856 50°F · 45853 51°F · 43527 51°F · 43524 51°F

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

Questions

What is the soil temperature in ZIP code 45864 today?: About 51°F on average in the top 4 inches (0–10 cm), low 47°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 14.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 45864?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 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).