What is the soil temperature in ZIP code 83243 today?

About 43°F on average in the top 4 inches (0–10 cm), low 38°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 7.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83243?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 21 and 55°F from May 26.

ZIP 83243 · Idaho · Nov 11, 2026

Soil temperature for ZIP code 83243

43°Faverage today, 0–4 in deep (modelled)
low 38°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 7.2 km from the ZIP centre point

On a week ago

2° warmer

40°F on Nov 4

5-day mean

42°F

what the verdicts use

Held 55°F last spring

May 26

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	40.4°F	37.3°F	45.5°F	analysis
Nov 5	39.3°F	36.4°F	43.6°F	analysis
Nov 6	39.8°F	35.7°F	46.2°F	analysis
Nov 7	40.1°F	35.9°F	46.4°F	analysis
Nov 8	41.1°F	37.5°F	46.4°F	analysis
Nov 9	42.3°F	38.4°F	47.8°F	analysis
Nov 10	43.0°F	38.6°F	49.2°F	analysis
Today	42.6°F	38.0°F	48.9°F	analysis
Nov 12	41.7°F	37.0°F	47.6°F	forecast
Nov 13	41.5°F	37.9°F	45.8°F	forecast
Nov 14	40.1°F	39.2°F	42.0°F	forecast
Nov 15	35.4°F	34.1°F	36.4°F	forecast
Nov 16	35.9°F	33.9°F	40.3°F	forecast
Nov 17	37.6°F	35.0°F	43.0°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 14
50°F	Pre-emergent window opens	Mar 21
55°F	Crabgrass can germinate	May 26
60°F	Tomatoes	Jun 16
65°F	Warm-season grass seed	not reached

Pocatello, ID, 73 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

83252 43°F · 83271 46°F · 83212 44°F · 84331 44°F · 84336 46°F · 83214 43°F · 83342 48°F · 83228 44°F

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

Questions

What is the soil temperature in ZIP code 83243 today?: About 43°F on average in the top 4 inches (0–10 cm), low 38°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 7.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83243?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 21 and 55°F from May 26.

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).