What is the soil temperature in ZIP code 43521 today?

About 49°F on average in the top 4 inches (0–10 cm), low 46°F and high 52°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 10.7 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 43521?

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 18.

ZIP 43521 · Wauseon, OH · Nov 11, 2026

Soil temperature for ZIP code 43521

49°Faverage today, 0–4 in deep (modelled)
low 46°F · high 52°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.7 km from the ZIP centre point

On a week ago

14° cooler

64°F on Nov 4

5-day mean

48°F

what the verdicts use

Held 55°F last spring

May 18

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	63.9°F	63.4°F	64.4°F	analysis
Nov 5	58.3°F	56.5°F	60.9°F	analysis
Nov 6	51.4°F	49.5°F	54.2°F	analysis
Nov 7	47.9°F	45.8°F	49.3°F	analysis
Nov 8	45.8°F	41.4°F	50.4°F	analysis
Nov 9	48.0°F	44.2°F	51.3°F	analysis
Nov 10	50.3°F	46.0°F	54.7°F	analysis
Today	49.4°F	45.9°F	51.9°F	analysis
Nov 12	47.5°F	45.9°F	49.2°F	forecast
Nov 13	41.8°F	40.2°F	42.6°F	forecast
Nov 14	38.9°F	35.4°F	41.9°F	forecast
Nov 15	38.4°F	34.6°F	41.0°F	forecast
Nov 16	38.4°F	33.4°F	42.5°F	forecast
Nov 17	39.9°F	35.4°F	43.9°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 22
50°F	Pre-emergent window opens	Apr 13
55°F	Crabgrass can germinate	May 18
60°F	Tomatoes	May 28
65°F	Warm-season grass seed	Jun 7

Adrian, MI, 34 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

49256 49°F · 49288 49°F · 43501 49°F · 43502 50°F · 43567 50°F · 43570 50°F · 43553 50°F · 43531 49°F

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

Questions

What is the soil temperature in ZIP code 43521 today?: About 49°F on average in the top 4 inches (0–10 cm), low 46°F and high 52°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 10.7 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 43521?: 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 18.

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).