What is the soil temperature in ZIP code 83115 today?

About 38°F on average in the top 4 inches (0–10 cm), low 34°F and high 44°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 9.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83115?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 27 and 55°F from Jun 17.

ZIP 83115 · Wyoming · Nov 11, 2026

Soil temperature for ZIP code 83115

38°Faverage today, 0–4 in deep (modelled)
low 34°F · high 44°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.9 km from the ZIP centre point

On a week ago

2° warmer

35°F on Nov 4

5-day mean

37°F

what the verdicts use

Held 55°F last spring

Jun 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 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	35.4°F	33.2°F	38.7°F	analysis
Nov 5	36.1°F	33.4°F	38.2°F	analysis
Nov 6	35.9°F	33.6°F	39.3°F	analysis
Nov 7	36.3°F	33.4°F	41.4°F	analysis
Nov 8	37.6°F	34.7°F	43.5°F	analysis
Nov 9	38.2°F	35.7°F	43.3°F	analysis
Nov 10	36.9°F	34.5°F	41.2°F	analysis
Today	37.5°F	33.9°F	44.2°F	analysis
Nov 12	38.5°F	35.5°F	44.2°F	forecast
Nov 13	36.9°F	34.7°F	40.3°F	forecast
Nov 14	35.3°F	32.5°F	39.1°F	forecast
Nov 15	35.0°F	32.1°F	37.5°F	forecast
Nov 16	34.1°F	32.0°F	37.6°F	forecast
Nov 17	33.8°F	30.8°F	37.9°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 7
50°F	Pre-emergent window opens	May 27
55°F	Crabgrass can germinate	Jun 17
60°F	Tomatoes	not reached
65°F	Warm-season grass seed	not reached

Nearby ZIP codes

Today's modelled average.

82922 37°F · 83113 39°F · 83128 38°F · 82941 34°F · 82925 30°F · 83112 37°F · 83110 37°F · 83118 41°F

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

Questions

What is the soil temperature in ZIP code 83115 today?: About 38°F on average in the top 4 inches (0–10 cm), low 34°F and high 44°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 9.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83115?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 27 and 55°F from Jun 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).