Live soil temperature · 2 inches down
Soil temperature in Topeka, KS
Right now · 66601
74°FActive
Annual bluegrass (Poa annua) and winter annual weeds: Fall pre-emergent window is open: get it down before soil drops below 70°F. Pre-emergent is a product that stops weed seeds before they sprout, so it only works ahead of germination.
By depth
- Surface
- 73°F
- 2 in depth
- 74°F
- 6 in depth
- 72°F
Past 14 days · 24-hour average
This week in Topeka
Over the past week, soil 2 inches down in Topeka, KS ranged from 61.9°F to 71.9°F and rose 10°F, averaging 67.7°F. 3 of those days sat inside the fall pre-emergent window, before soil drops below 70°F.
| Day | Surface | 2 in | 6 in |
|---|---|---|---|
| Mon | 59.5°F | 61.9°F | 64.3°F |
| Tue | 64°F | 62.7°F | 63.9°F |
| Wed | 70°F | 68.2°F | 65.7°F |
| Thu | 70°F | 68.6°F | 67.4°F |
| Fri | 71.3°F | 70.2°F | 68.9°F |
| Sat | 71.8°F | 70.6°F | 69.6°F |
| Sun | 73.3°F | 71.9°F | 70.4°F |
Daily averages from Open-Meteo for Topeka, KS 66601. Readings refresh every six hours.
Interpretation
What this means for your grass.
- Bermuda
- Bermuda is still growing, but the season is turning. This is the fall pre-emergent window: get it down before soil falls below 70°F, which is when annual bluegrass and other winter weeds start to germinate.
- Zoysia
- Zoysia is still growing and the season is turning. This is the fall pre-emergent window: get it down before soil falls below 70°F. Ease off nitrogen so you aren't pushing growth into dormancy.
- St. Augustine
- St. Augustine is still growing and the season is turning. This is the fall pre-emergent window: get it down before soil falls below 70°F. Check the label for St. Augustine tolerance before you buy.
- Cool-season
- Cooling out of summer stress and starting to recover. Fall feeding and seeding start here. Pre-emergent and overseeding cannot go down together, so pick one before you buy.
Nearest readings
Soil temperature near Topeka
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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 Mon, 12 Oct 2026 00:07:05 GMT