What is the soil temperature in ZIP code 78370 today?

About 68°F on average in the top 4 inches (0–10 cm), low 66°F and high 71°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 12.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 78370?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 30 and 55°F from Feb 3.

ZIP 78370 · Sinton, TX · Nov 11, 2026

Soil temperature for ZIP code 78370

68°Faverage today, 0–4 in deep (modelled)
low 66°F · high 71°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 12.6 km from the ZIP centre point

On a week ago

8° cooler

76°F on Nov 4

5-day mean

70°F

what the verdicts use

Held 55°F last spring

Feb 3

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	76.0°F	71.4°F	80.1°F	analysis
Nov 5	74.4°F	70.4°F	78.7°F	analysis
Nov 6	77.0°F	73.7°F	80.8°F	analysis
Nov 7	75.2°F	71.0°F	78.8°F	analysis
Nov 8	74.0°F	73.1°F	75.3°F	analysis
Nov 9	67.0°F	66.0°F	69.4°F	analysis
Nov 10	65.3°F	64.5°F	66.2°F	analysis
Today	67.6°F	65.8°F	70.9°F	analysis
Nov 12	69.8°F	66.7°F	73.7°F	forecast
Nov 13	68.5°F	63.6°F	73.1°F	forecast
Nov 14	68.4°F	65.9°F	70.1°F	forecast
Nov 15	69.0°F	66.1°F	72.4°F	forecast
Nov 16	65.7°F	64.6°F	68.1°F	forecast
Nov 17	61.8°F	60.8°F	63.4°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 30
55°F	Crabgrass can germinate	Feb 3
60°F	Tomatoes	Feb 6
65°F	Warm-season grass seed	Feb 10

Corpus Christi, TX, 25 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

78352 67°F · 78410 68°F · 78409 68°F · 78387 68°F · 78402 68°F · 78406 68°F · 78407 68°F · 78408 68°F

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

Questions

What is the soil temperature in ZIP code 78370 today?: About 68°F on average in the top 4 inches (0–10 cm), low 66°F and high 71°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 12.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 78370?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 30 and 55°F from Feb 3.

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).