What is the soil temperature in ZIP code 85756 today?

About 66°F on average in the top 4 inches (0–10 cm), low 60°F and high 74°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 11.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 85756?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 15 and 55°F from Jan 18.

ZIP 85756 · Summit, AZ · Nov 11, 2026

Soil temperature for ZIP code 85756

66°Faverage today, 0–4 in deep (modelled)
low 60°F · high 74°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.8 km from the ZIP centre point

On a week ago

1° warmer

65°F on Nov 4

5-day mean

65°F

what the verdicts use

Held 55°F last spring

Jan 18

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedWarm enough
TomatoesSoil warm enough
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	64.9°F	58.8°F	72.5°F	analysis
Nov 5	65.3°F	58.9°F	73.8°F	analysis
Nov 6	65.8°F	61.1°F	70.5°F	analysis
Nov 7	64.7°F	60.0°F	71.5°F	analysis
Nov 8	64.1°F	59.3°F	70.6°F	analysis
Nov 9	64.7°F	59.3°F	72.1°F	analysis
Nov 10	65.9°F	59.5°F	74.6°F	analysis
Today	66.3°F	60.0°F	74.5°F	analysis
Nov 12	66.5°F	60.2°F	74.9°F	forecast
Nov 13	65.9°F	61.8°F	69.1°F	forecast
Nov 14	63.0°F	59.1°F	67.7°F	forecast
Nov 15	63.8°F	57.8°F	71.8°F	forecast
Nov 16	64.6°F	58.6°F	73.0°F	forecast
Nov 17	65.8°F	60.0°F	73.3°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	never below
50°F	Pre-emergent window opens	Jan 15
55°F	Crabgrass can germinate	Jan 18
60°F	Tomatoes	Feb 5
65°F	Warm-season grass seed	Feb 26

Sahuarita, AZ, 13 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

85734 66°F · 85706 75°F · 85709 75°F · 85714 75°F · 85707 75°F · 85708 65°F · 85747 66°F · 85723 75°F

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

Questions

What is the soil temperature in ZIP code 85756 today?: About 66°F on average in the top 4 inches (0–10 cm), low 60°F and high 74°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 11.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 85756?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 15 and 55°F from Jan 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).