What is the soil temperature in ZIP code 83101 today?

About 40°F on average in the top 4 inches (0–10 cm), low 36°F and high 47°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 4.7 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 83101?

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 4.

ZIP 83101 · Wyoming · Nov 11, 2026

Soil temperature for ZIP code 83101

40°Faverage today, 0–4 in deep (modelled)
low 36°F · high 47°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 4.7 km from the ZIP centre point

On a week ago

2° warmer

38°F on Nov 4

5-day mean

40°F

what the verdicts use

Held 55°F last spring

Jun 4

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	37.8°F	35.7°F	41.6°F	analysis
Nov 5	37.7°F	35.0°F	41.5°F	analysis
Nov 6	38.3°F	35.9°F	42.7°F	analysis
Nov 7	38.0°F	34.5°F	44.1°F	analysis
Nov 8	39.1°F	36.1°F	46.3°F	analysis
Nov 9	41.2°F	36.4°F	48.2°F	analysis
Nov 10	40.5°F	36.2°F	45.5°F	analysis
Today	39.9°F	36.1°F	47.0°F	analysis
Nov 12	39.9°F	36.4°F	46.3°F	forecast
Nov 13	38.6°F	35.9°F	43.3°F	forecast
Nov 14	37.7°F	35.7°F	40.9°F	forecast
Nov 15	35.8°F	32.9°F	38.3°F	forecast
Nov 16	35.8°F	32.8°F	40.1°F	forecast
Nov 17	36.3°F	33.0°F	41.3°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 21
50°F	Pre-emergent window opens	May 4
55°F	Crabgrass can germinate	Jun 4
60°F	Tomatoes	Jun 17
65°F	Warm-season grass seed	not reached

This ZIP code area covers about 530 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

83121 42°F · 83116 42°F · 83124 45°F · 83114 40°F · 83123 41°F · 84064 41°F · 83233 42°F · 84038 42°F

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

Questions

What is the soil temperature in ZIP code 83101 today?: About 40°F on average in the top 4 inches (0–10 cm), low 36°F and high 47°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 4.7 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 83101?: 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 4.

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).