Live soil temperature · 2 inches down
Soil temperature in Cedar Rapids, IA
Right now · 52401
65.7°FActive
Annual bluegrass (Poa annua) and winter annual weeds: Window is closing: soil is below 70°F, so annual bluegrass is germinating now. Pre-emergent is a product that stops weed seeds before they sprout, so it only works ahead of germination.
By depth
- Surface
- 65.9°F
- 2 in depth
- 65.7°F
- 6 in depth
- 62.1°F
Past 14 days · 24-hour average
This week in Cedar Rapids
Over the past week, soil 2 inches down in Cedar Rapids, IA ranged from 57°F to 63.5°F and rose 4.6°F, averaging 59.8°F.
| Day | Surface | 2 in | 6 in |
|---|---|---|---|
| Sat | 55.9°F | 57°F | 59.2°F |
| Sun | 58°F | 59.8°F | 59.9°F |
| Mon | 55.4°F | 57.1°F | 59.1°F |
| Tue | 63.2°F | 61.2°F | 59.7°F |
| Wed | 62.8°F | 63.5°F | 61.9°F |
| Thu | 56.2°F | 58.5°F | 61.5°F |
| Fri | 63.9°F | 61.6°F | 61°F |
Daily averages from Open-Meteo for Cedar Rapids, IA 52401. 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's growth is winding down and the fall pre-emergent window is closing: soil is at or below 70°F, so annual bluegrass is germinating. Apply now if you haven't, and expect to treat some weeds that are already up.
- 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 Cedar Rapids
- Des Moines, IA101 miles from Cedar Rapids · ZIP 50301
- Madison, WI137 miles from Cedar Rapids · ZIP 53701
- Peoria, IL139 miles from Cedar Rapids · ZIP 61601
- Rochester, MN149 miles from Cedar Rapids · ZIP 55901
- Naperville, IL181 miles from Cedar Rapids · ZIP 60540
- Springfield, IL183 miles from Cedar Rapids · ZIP 62701
Get alerted the day your window opens
The app watches your soil temperature every day and reminds you before timing windows open or close. Free to download.
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 00:07:30 GMT