Soil Temperature in Idaho
The current average 2-inch soil temperature across Idaho is 59°F, based on 4 USDA and NOAA monitoring stations. Readings range from 58°F to 61°F. Last updated May 18, 2026.
Current Planting Conditions
Prime cool-season planting conditions in Idaho with soil averaging 59°F at 2 inches. The spring fertilizer and overseeding window is active. This is the ideal range for tall fescue and Kentucky bluegrass establishment.
Monitoring Stations in Idaho (4)
| Station | 2" Temp | Last Reading |
|---|---|---|
| Jordan Valley Cwma (Owyhee) | 58°F | 2026-05-18 |
| Orchard Range Site (Ada) | 61°F | 2026-05-18 |
| Arco 17 SW | 58°F | 2026-05-18 |
| Murphy 10 W | 61°F | 2026-05-18 |
Cities in Idaho (12)
| City | ZIP | Current Temp | Distance from state center |
|---|---|---|---|
| Boise | 83701 | — | 97 mi |
| Caldwell | 83605 | — | 114 mi |
| Coeur D Alene | 83814 | — | 253 mi |
| Idaho Falls | 83401 | — | 146 mi |
| Meridian | 83642 | — | 102 mi |
| Moscow | 83843 | — | 201 mi |
| Nampa | 83651 | — | 111 mi |
| Pocatello | 83201 | — | 149 mi |
| Post Falls | 83854 | — | 258 mi |
| Rexburg | 83440 | — | 145 mi |
| Sun Valley | 83353 | — | 48 mi |
| Twin Falls | 83301 | — | 124 mi |
Soil Temperature FAQ for Idaho
What is the current soil temperature in Idaho?
The current average 2-inch soil temperature across Idaho is 59°F, based on 4 USDA and NOAA monitoring stations. Readings range from 58°F to 61°F depending on location and elevation.
When should I apply pre-emergent in Idaho?
Apply pre-emergent herbicide when soil at 2 inches reaches 55°F for several consecutive days. Timing varies across Idaho, so check your city's page for station-specific readings and the pre-emergent timing recommendation.
When can I plant grass seed in Idaho?
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.