Soil Temperature in Maine
The current average 2-inch soil temperature across Maine is 54°F, based on 2 USDA and NOAA monitoring stations. Readings range from 54°F to 54°F. Last updated May 18, 2026.
Current Planting Conditions
The pre-emergent herbicide window is opening across Maine with soil averaging 54°F at 2 inches. Monitor your city's specific readings for optimal timing, since crabgrass germinates when soil sustains 55°F.
Monitoring Stations in Maine (2)
| Station | 2" Temp | Last Reading |
|---|---|---|
| Old Town 2 W | 54°F | 2026-05-18 |
| Limestone 4 NNW | 54°F | 2026-05-18 |
Cities in Maine (15)
| City | ZIP | Current Temp | Distance from state center |
|---|---|---|---|
| Auburn | 04210 | — | 101 mi |
| Augusta | 04330 | — | 77 mi |
| Bangor | 04401 | — | 44 mi |
| Biddeford | 04005 | — | 143 mi |
| Castine | 04420 | — | 70 mi |
| Freeport | 04032 | — | 113 mi |
| Lewiston | 04240 | — | 99 mi |
| Limestone | 04750 | — | 127 mi |
| New Portland | 04954 | — | 53 mi |
| Orono | 04469 | — | 39 mi |
| Portland | 04101 | — | 128 mi |
| Scarborough | 04070 | — | 134 mi |
| South Portland | 04106 | — | 130 mi |
| Waterville | 04901 | — | 59 mi |
| Westbrook | 04092 | — | 129 mi |
Soil Temperature FAQ for Maine
What is the current soil temperature in Maine?
The current average 2-inch soil temperature across Maine is 54°F, based on 2 USDA and NOAA monitoring stations. Readings range from 54°F to 54°F depending on location and elevation.
When should I apply pre-emergent in Maine?
Apply pre-emergent herbicide when soil at 2 inches reaches 55°F for several consecutive days. Timing varies across Maine, so check your city's page for station-specific readings and the pre-emergent timing recommendation.
When can I plant grass seed in Maine?
Cool-season grasses (fescue, bluegrass) can be seeded when soil holds between 50 and 65°F. Warm-season grasses (bermuda, zoysia) need soil above 65°F. Timing varies by location, so check your city's planting window for the dates specific to your area.