What is the soil temperature in ZIP code 61336 today?

About 52°F on average in the top 4 inches (0–10 cm), low 49°F and high 54°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 12.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 61336?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 10 and 55°F from May 12.

ZIP 61336 · Spring Valley, IL · Nov 11, 2026

Soil temperature for ZIP code 61336

52°Faverage today, 0–4 in deep (modelled)
low 49°F · high 54°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 12.8 km from the ZIP centre point

On a week ago

9° cooler

61°F on Nov 4

5-day mean

49°F

what the verdicts use

Held 55°F last spring

May 12

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	61.0°F	57.7°F	64.0°F	analysis
Nov 5	53.2°F	52.5°F	55.2°F	analysis
Nov 6	49.9°F	48.7°F	51.9°F	analysis
Nov 7	44.7°F	40.9°F	48.0°F	analysis
Nov 8	46.5°F	41.8°F	52.1°F	analysis
Nov 9	49.5°F	44.9°F	54.1°F	analysis
Nov 10	53.1°F	49.6°F	56.9°F	analysis
Today	51.6°F	49.2°F	53.5°F	analysis
Nov 12	46.7°F	45.6°F	48.0°F	forecast
Nov 13	40.1°F	37.2°F	41.9°F	forecast
Nov 14	38.8°F	34.8°F	42.3°F	forecast
Nov 15	40.2°F	35.5°F	44.8°F	forecast
Nov 16	41.9°F	37.3°F	46.2°F	forecast
Nov 17	42.3°F	37.9°F	46.2°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 10
55°F	Crabgrass can germinate	May 12
60°F	Tomatoes	May 17
65°F	Warm-season grass seed	May 27

Ottawa, IL, 40 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

61335 50°F · 61375 52°F · 61334 50°F · 61541 52°F · 61326 50°F · 61327 50°F · 61369 52°F · 61377 52°F

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

Questions

What is the soil temperature in ZIP code 61336 today?: About 52°F on average in the top 4 inches (0–10 cm), low 49°F and high 54°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 12.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 61336?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 10 and 55°F from May 12.

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).