What is the soil temperature in ZIP code 84758 today?

About 50°F on average in the top 4 inches (0–10 cm), low 46°F and high 57°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 8.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 84758?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 13 and 55°F from Mar 17.

ZIP 84758 · Utah · Nov 11, 2026

Soil temperature for ZIP code 84758

50°Faverage today, 0–4 in deep (modelled)
low 46°F · high 57°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.9 km from the ZIP centre point

On a week ago

4° warmer

47°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

Mar 17

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	46.8°F	42.4°F	52.3°F	analysis
Nov 5	45.5°F	41.1°F	51.2°F	analysis
Nov 6	47.1°F	42.2°F	54.0°F	analysis
Nov 7	48.7°F	43.4°F	56.2°F	analysis
Nov 8	49.8°F	44.3°F	57.3°F	analysis
Nov 9	49.9°F	44.3°F	57.7°F	analysis
Nov 10	50.3°F	44.7°F	58.0°F	analysis
Today	50.5°F	45.6°F	56.9°F	analysis
Nov 12	49.9°F	44.9°F	56.5°F	forecast
Nov 13	49.2°F	45.8°F	53.6°F	forecast
Nov 14	47.2°F	45.4°F	49.9°F	forecast
Nov 15	43.3°F	39.5°F	49.9°F	forecast
Nov 16	45.1°F	40.6°F	51.3°F	forecast
Nov 17	45.9°F	43.1°F	49.4°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	Feb 2
50°F	Pre-emergent window opens	Mar 13
55°F	Crabgrass can germinate	Mar 17
60°F	Tomatoes	Mar 21
65°F	Warm-season grass seed	May 10

Cedar City, UT, 46 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

84755 50°F · 84729 43°F · 84762 43°F · 84767 51°F · 84710 43°F · 84779 51°F · 84763 51°F · 84719 42°F

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

Questions

What is the soil temperature in ZIP code 84758 today?: About 50°F on average in the top 4 inches (0–10 cm), low 46°F and high 57°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 8.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 84758?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 13 and 55°F from Mar 17.

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).