What is the soil temperature in ZIP code 83604 today?

About 53°F on average in the top 4 inches (0–10 cm), low 48°F and high 60°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 5.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83604?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 16 and 55°F from Mar 20.

ZIP 83604 · Idaho · Nov 11, 2026

Soil temperature for ZIP code 83604

53°Faverage today, 0–4 in deep (modelled)
low 48°F · high 60°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 5.6 km from the ZIP centre point

On a week ago

2° warmer

51°F on Nov 4

5-day mean

52°F

what the verdicts use

Held 55°F last spring

Mar 20

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedToo cold
TomatoesToo cold
Peas and lettuceWarm enough

From the 5-day mean of the modelled 0–4 in layer.

Soil temperature, 0–4 in: last 7 days and next 7

°F, modelled. Dots and line: daily average (dashed = forecast); bars: low to high; green band: 50–55°F.

View as table

Day	Average	Low	High
Nov 4	51.0°F	47.4°F	57.1°F	analysis
Nov 5	49.9°F	45.1°F	56.9°F	analysis
Nov 6	48.7°F	43.1°F	56.7°F	analysis
Nov 7	50.1°F	44.9°F	58.3°F	analysis
Nov 8	52.4°F	47.9°F	59.1°F	analysis
Nov 9	51.5°F	46.8°F	58.1°F	analysis
Nov 10	52.3°F	46.9°F	60.3°F	analysis
Today	52.6°F	47.6°F	60.2°F	analysis
Nov 12	52.6°F	47.9°F	59.3°F	forecast
Nov 13	52.7°F	48.9°F	58.7°F	forecast
Nov 14	54.3°F	51.8°F	57.0°F	forecast
Nov 15	49.2°F	45.6°F	54.4°F	forecast
Nov 16	49.3°F	47.4°F	51.9°F	forecast
Nov 17	48.6°F	46.3°F	52.1°F	forecast

Source: NOAA NCEP GFS 0.25°, 0–10 cm soil temperature, run Nov 11, 12:00 UTC (7 am Eastern).

Spring 2026 threshold dates

From the 5-day mean held for 10 days or more.

Soil	What it means	Held from (spring 2026)
40°F	Peas and lettuce	Feb 5
50°F	Pre-emergent window opens	Mar 16
55°F	Crabgrass can germinate	Mar 20
60°F	Tomatoes	May 2
65°F	Warm-season grass seed	May 5

This ZIP code area covers about 794 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

83627 53°F · 83648 53°F · 83623 53°F · 83624 52°F · 83633 52°F · 83337 46°F · 83647 47°F · 83634 54°F

More: crabgrass timing in Idaho · every Idaho city · how accurate the model is.

Questions

What is the soil temperature in ZIP code 83604 today?: About 53°F on average in the top 4 inches (0–10 cm), low 48°F and high 60°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 5.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83604?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 16 and 55°F from Mar 20.

Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); 2025 Gazetteer ZIP Code Tabulation Areas (ZCTA) and 2024 cartographic boundary state outlines (U.S. Census Bureau).