What is the soil temperature in ZIP code 83806 today?

About 46°F on average in the top 4 inches (0–10 cm), low 45°F and high 49°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 16.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83806?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 4 and 55°F from Jun 16.

ZIP 83806 · Idaho · Nov 11, 2026

Soil temperature for ZIP code 83806

46°Faverage today, 0–4 in deep (modelled)
low 45°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 16.6 km from the ZIP centre point

On a week ago

5° warmer

41°F on Nov 4

5-day mean

44°F

what the verdicts use

Held 55°F last spring

Jun 16

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	41.0°F	39.3°F	43.0°F	analysis
Nov 5	39.3°F	38.6°F	40.6°F	analysis
Nov 6	38.0°F	36.8°F	39.4°F	analysis
Nov 7	42.3°F	40.0°F	46.2°F	analysis
Nov 8	44.8°F	44.0°F	45.8°F	analysis
Nov 9	42.5°F	41.1°F	44.9°F	analysis
Nov 10	44.4°F	44.0°F	45.1°F	analysis
Today	45.9°F	44.7°F	48.6°F	analysis
Nov 12	47.3°F	46.2°F	49.6°F	forecast
Nov 13	47.8°F	46.5°F	50.0°F	forecast
Nov 14	46.6°F	45.0°F	49.0°F	forecast
Nov 15	41.2°F	39.8°F	42.5°F	forecast
Nov 16	41.9°F	41.2°F	42.5°F	forecast
Nov 17	39.1°F	38.0°F	39.9°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	Apr 6
50°F	Pre-emergent window opens	May 4
55°F	Crabgrass can germinate	Jun 16
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Pullman, WA, 63 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

83823 47°F · 83812 46°F · 83827 47°F · 83830 46°F · 83537 47°F · 83866 47°F · 83834 47°F · 83871 48°F

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

Questions

What is the soil temperature in ZIP code 83806 today?: About 46°F on average in the top 4 inches (0–10 cm), low 45°F and high 49°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 16.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83806?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 4 and 55°F from Jun 16.

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).