What is the soil temperature in ZIP code 83455 today?

About 41°F on average in the top 4 inches (0–10 cm), low 37°F and high 45°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 14.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83455?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jun 16 and 55°F from Jun 18.

ZIP 83455 · Idaho · Nov 11, 2026

Soil temperature for ZIP code 83455

41°Faverage today, 0–4 in deep (modelled)
low 37°F · high 45°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 14.9 km from the ZIP centre point

On a week ago

5° warmer

36°F on Nov 4

5-day mean

40°F

what the verdicts use

Held 55°F last spring

Jun 18

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 lettuceToo cold

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	35.9°F	35.0°F	37.8°F	analysis
Nov 5	37.4°F	36.6°F	37.7°F	analysis
Nov 6	37.1°F	36.8°F	37.3°F	analysis
Nov 7	37.8°F	36.1°F	39.8°F	analysis
Nov 8	38.6°F	35.3°F	43.9°F	analysis
Nov 9	41.1°F	38.4°F	45.0°F	analysis
Nov 10	40.6°F	38.6°F	43.2°F	analysis
Today	40.6°F	37.3°F	45.4°F	analysis
Nov 12	41.8°F	38.4°F	46.9°F	forecast
Nov 13	42.0°F	39.7°F	44.7°F	forecast
Nov 14	39.6°F	38.6°F	41.1°F	forecast
Nov 15	36.6°F	35.8°F	37.3°F	forecast
Nov 16	35.1°F	33.8°F	36.7°F	forecast
Nov 17	36.1°F	34.9°F	39.4°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	Mar 22
50°F	Pre-emergent window opens	Jun 16
55°F	Crabgrass can germinate	Jun 18
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Rexburg, ID, 58 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

83422 41°F · 83014 38°F · 83025 39°F · 83428 38°F · 83452 41°F · 83449 41°F · 83012 31°F · 83414 40°F

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

Questions

What is the soil temperature in ZIP code 83455 today?: About 41°F on average in the top 4 inches (0–10 cm), low 37°F and high 45°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 14.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83455?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jun 16 and 55°F from Jun 18.

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).