What is the soil temperature in ZIP code 62549 today?

About 56°F on average in the top 4 inches (0–10 cm), low 51°F and high 60°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 10.3 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 62549?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 22 and 55°F from Apr 12.

ZIP 62549 · Mount Zion, IL · Nov 11, 2026

Soil temperature for ZIP code 62549

56°Faverage today, 0–4 in deep (modelled)
low 51°F · high 60°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.3 km from the ZIP centre point

On a week ago

6° cooler

62°F on Nov 4

5-day mean

52°F

what the verdicts use

Held 55°F last spring

Apr 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	62.4°F	59.8°F	65.1°F	analysis
Nov 5	56.7°F	53.7°F	58.4°F	analysis
Nov 6	54.1°F	52.9°F	56.0°F	analysis
Nov 7	47.1°F	42.5°F	50.6°F	analysis
Nov 8	47.9°F	42.3°F	54.4°F	analysis
Nov 9	51.9°F	46.5°F	57.2°F	analysis
Nov 10	56.0°F	51.4°F	60.9°F	analysis
Today	56.0°F	51.2°F	60.2°F	analysis
Nov 12	50.8°F	48.2°F	54.6°F	forecast
Nov 13	42.7°F	39.5°F	44.2°F	forecast
Nov 14	40.7°F	36.2°F	44.7°F	forecast
Nov 15	41.9°F	36.6°F	46.8°F	forecast
Nov 16	42.9°F	38.1°F	47.1°F	forecast
Nov 17	43.0°F	37.9°F	47.6°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	Mar 22
55°F	Crabgrass can germinate	Apr 12
60°F	Tomatoes	May 16
65°F	Warm-season grass seed	May 27

Decatur, IL, 11 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

61925 56°F · 62521 56°F · 62532 56°F · 62523 56°F · 62544 56°F · 61936 56°F · 62514 56°F · 62522 56°F

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

Questions

What is the soil temperature in ZIP code 62549 today?: About 56°F on average in the top 4 inches (0–10 cm), low 51°F and high 60°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 10.3 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 62549?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 22 and 55°F from Apr 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).