ZIP 78639 · Kingsland, TX · Nov 11, 2026

Soil temperature for ZIP code 78639

65°Faverage today, 0–4 in deep (modelled)
low 61°F · high 69°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.3 km from the ZIP centre point

On a week ago
4° cooler
68°F on Nov 4
5-day mean
63°F
what the verdicts use
Held 55°F last spring
Feb 8
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°65°54°
View as table
DayAverageLowHigh
Nov 468.1°F63.6°F72.0°Fanalysis
Nov 566.9°F62.5°F72.1°Fanalysis
Nov 666.2°F63.8°F68.6°Fanalysis
Nov 764.1°F62.0°F65.6°Fanalysis
Nov 863.1°F62.7°F64.2°Fanalysis
Nov 962.1°F60.5°F64.6°Fanalysis
Nov 1063.5°F61.3°F66.8°Fanalysis
Today64.6°F61.4°F68.7°Fanalysis
Nov 1265.0°F61.8°F68.6°Fforecast
Nov 1363.0°F58.6°F67.6°Fforecast
Nov 1460.6°F58.4°F62.9°Fforecast
Nov 1559.4°F58.4°F60.6°Fforecast
Nov 1655.4°F54.4°F56.6°Fforecast
Nov 1754.4°F51.4°F59.0°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 lettuceJan 31
50°FPre-emergent window opensFeb 6
55°FCrabgrass can germinateFeb 8
60°FTomatoesFeb 11
65°FWarm-season grass seedMar 1

Round Rock, TX, 76 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

78609 65°F · 78657 65°F · 78607 65°F · 78611 64°F · 78643 63°F · 78654 65°F · 78672 63°F · 78663 65°F

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

Questions

What is the soil temperature in ZIP code 78639 today?
About 65°F on average in the top 4 inches (0–10 cm), low 61°F and high 69°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 11.3 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 78639?
The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 6 and 55°F from Feb 8.

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).