ZIP 78837 · Texas · Nov 11, 2026

Soil temperature for ZIP code 78837

64°Faverage today, 0–4 in deep (modelled)
low 59°F · high 70°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.4 km from the ZIP centre point

On a week ago
4° cooler
68°F on Nov 4
5-day mean
62°F
what the verdicts use
Held 55°F last spring
Feb 6
crabgrass germination temperature

What the soil says today

  • Pre-emergentSeason over
  • Cool-season seedToo late in the season
  • Warm-season seedToo cold
  • 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.

40°50°60°70°80°50–55°F windowNov 4Nov 6Nov 8TodayNov 14Nov 1668°64°59°
View as table
DayAverageLowHigh
Nov 467.9°F63.1°F72.7°Fanalysis
Nov 569.2°F63.8°F75.6°Fanalysis
Nov 666.7°F62.9°F69.8°Fanalysis
Nov 762.8°F61.8°F64.9°Fanalysis
Nov 859.9°F59.6°F60.4°Fanalysis
Nov 960.7°F60.4°F61.0°Fanalysis
Nov 1062.2°F59.7°F67.1°Fanalysis
Today64.2°F59.3°F70.5°Fanalysis
Nov 1266.8°F62.2°F72.4°Fforecast
Nov 1366.4°F62.4°F70.4°Fforecast
Nov 1463.0°F61.1°F65.1°Fforecast
Nov 1562.1°F60.2°F64.8°Fforecast
Nov 1661.3°F60.4°F62.4°Fforecast
Nov 1759.2°F58.2°F60.2°Fforecast
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.

SoilWhat it meansHeld from (spring 2026)
40°FPeas and lettucenever below
50°FPre-emergent window opensFeb 1
55°FCrabgrass can germinateFeb 6
60°FTomatoesFeb 9
65°FWarm-season grass seedFeb 11

Del Rio, TX, 73 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

This ZIP code area covers about 807 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

78841 66°F · 78871 66°F · 78840 64°F · 78842 64°F · 76943 62°F · 78851 65°F · 78843 66°F · 76950 61°F

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

Questions

What is the soil temperature in ZIP code 78837 today?
About 64°F on average in the top 4 inches (0–10 cm), low 59°F and high 70°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 8.4 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 78837?
The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 1 and 55°F from Feb 6.

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).