ZIP 78545 · Roma, TX · Nov 11, 2026

Soil temperature for ZIP code 78545

70°Faverage today, 0–4 in deep (modelled)
low 66°F · high 74°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 14.9 km from the ZIP centre point

On a week ago
12° cooler
82°F on Nov 4
5-day mean
71°F
what the verdicts use
Held 55°F last spring
Jan 30
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.

40°50°60°70°80°90°100°50–55°F windowNov 4Nov 6Nov 8TodayNov 14Nov 1682°70°65°
View as table
DayAverageLowHigh
Nov 481.6°F75.5°F87.9°Fanalysis
Nov 580.2°F76.6°F85.1°Fanalysis
Nov 680.2°F76.9°F83.8°Fanalysis
Nov 777.1°F76.2°F78.9°Fanalysis
Nov 873.0°F71.5°F73.9°Fanalysis
Nov 969.7°F68.4°F71.4°Fanalysis
Nov 1067.8°F66.9°F69.2°Fanalysis
Today69.7°F66.5°F73.6°Fanalysis
Nov 1271.7°F69.0°F75.6°Fforecast
Nov 1373.3°F68.1°F78.8°Fforecast
Nov 1472.6°F69.9°F75.7°Fforecast
Nov 1571.9°F68.8°F75.1°Fforecast
Nov 1670.8°F68.6°F73.3°Fforecast
Nov 1765.3°F64.5°F66.1°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 opensnever below
55°FCrabgrass can germinateJan 30
60°FTomatoesFeb 1
65°FWarm-season grass seedFeb 5

Nearby ZIP codes

Today's modelled average.

78564 70°F · 78585 71°F · 78584 71°F · 78076 70°F · 78582 70°F · 78360 69°F · 78547 71°F · 78591 69°F

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

Questions

What is the soil temperature in ZIP code 78545 today?
About 70°F on average in the top 4 inches (0–10 cm), low 66°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 14.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 78545?
Soil here stayed above 50°F all last winter, so the 50 to 55°F soil rule gives no spring window. Time pre-emergent to your local calendar.

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).