What is the soil temperature in ZIP code 78843 today?

About 66°F on average in the top 4 inches (0–10 cm), low 62°F and high 72°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 11.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 78843?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 31 and 55°F from Feb 4.

ZIP 78843 · Del Rio, TX · Nov 11, 2026

Soil temperature for ZIP code 78843

66°Faverage today, 0–4 in deep (modelled)
low 62°F · high 72°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.1 km from the ZIP centre point

On a week ago

5° cooler

72°F on Nov 4

5-day mean

66°F

what the verdicts use

Held 55°F last spring

Feb 4

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	71.6°F	67.1°F	75.9°F	analysis
Nov 5	71.9°F	66.9°F	78.4°F	analysis
Nov 6	71.0°F	67.9°F	73.5°F	analysis
Nov 7	67.7°F	66.2°F	69.4°F	analysis
Nov 8	64.2°F	64.0°F	64.9°F	analysis
Nov 9	63.7°F	63.6°F	64.0°F	analysis
Nov 10	65.4°F	63.1°F	69.2°F	analysis
Today	66.5°F	62.5°F	71.7°F	analysis
Nov 12	68.9°F	64.7°F	74.0°F	forecast
Nov 13	68.8°F	65.1°F	72.2°F	forecast
Nov 14	65.3°F	63.2°F	67.4°F	forecast
Nov 15	64.0°F	62.3°F	65.9°F	forecast
Nov 16	63.3°F	62.2°F	65.0°F	forecast
Nov 17	60.0°F	59.5°F	60.9°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	never below
50°F	Pre-emergent window opens	Jan 31
55°F	Crabgrass can germinate	Feb 4
60°F	Tomatoes	Feb 7
65°F	Warm-season grass seed	Feb 10

Del Rio, TX, 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.

78842 64°F · 78832 64°F · 78840 64°F · 78877 66°F · 78852 66°F · 78837 64°F · 78880 61°F · 78841 66°F

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

Questions

What is the soil temperature in ZIP code 78843 today?: About 66°F on average in the top 4 inches (0–10 cm), low 62°F and high 72°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 11.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 78843?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 31 and 55°F from Feb 4.

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).