Live soil temperature · 2 inches down
Soil temperature in Plano, TX
Right now · 75023
55.4°FCool
Annual bluegrass (Poa annua) and winter annual weeds: First fall window has passed. Most labels call for a second application 8 to 10 weeks after the first. Pre-emergent is a product that stops weed seeds before they sprout, so it only works ahead of germination.
By depth
- Surface
- 47.3°F
- 2 in depth
- 55.4°F
- 6 in depth
- 66.5°F
Past 14 days · 24-hour average
This week in Plano
Over the past week, soil 2 inches down in Plano, TX ranged from 62.8°F to 83.8°F and fell 16.6°F, averaging 74.6°F.
| Day | Surface | 2 in | 6 in |
|---|---|---|---|
| Mon | 80.1°F | 79.4°F | 78.8°F |
| Tue | 84.6°F | 82.9°F | 80.6°F |
| Wed | 84.2°F | 83.8°F | 82.3°F |
| Thu | 80.4°F | 81.1°F | 81.6°F |
| Fri | 63.6°F | 69.3°F | 76.4°F |
| Sat | 58.9°F | 62.9°F | 69.3°F |
| Sun | 60.7°F | 62.8°F | 67.1°F |
Daily averages from Open-Meteo for Plano, TX 75023. Readings refresh every six hours.
Interpretation
What this means for your grass.
- Bermuda
- Bermuda's growth is slowing toward dormancy. Stop pushing nitrogen. Soil is already below the 70°F annual bluegrass germination point, so fall pre-emergent is late, but it still blocks the seed that germinates over the next couple of months.
- Zoysia
- Zoysia is slowing toward dormancy. Stop nitrogen. Soil is below the 70°F annual bluegrass germination point, so fall pre-emergent is late but still worth putting down for later-germinating seed.
- St. Augustine
- St. Augustine is slowing toward winter. Hold nitrogen. Winter weeds are already up, so treat what you can see rather than applying a pre-emergent now.
- Cool-season
- The best growing range of the year for cool-season grass. This is prime time to fertilize and to overseed. If you are overseeding, do not apply pre-emergent: it stops grass seed the same way it stops weed seed.
Nearest readings
Soil temperature near Plano
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Weather data from Open-Meteo. Timing guidance follows the sources on when to apply pre-emergent and how to use soil temperature.Data as of Sun, 18 Oct 2026 07:22:00 GMT