What is the soil temperature in ZIP code 73945 today?

About 57°F on average in the top 4 inches (0–10 cm), low 53°F and high 62°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 8.7 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 73945?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 8 and 55°F from Feb 28.

ZIP 73945 · Guymon, OK · Nov 11, 2026

Soil temperature for ZIP code 73945

57°Faverage today, 0–4 in deep (modelled)
low 53°F · high 62°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.7 km from the ZIP centre point

On a week ago

2° warmer

56°F on Nov 4

5-day mean

57°F

what the verdicts use

Held 55°F last spring

Feb 28

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	55.5°F	50.7°F	61.6°F	analysis
Nov 5	56.0°F	54.1°F	57.8°F	analysis
Nov 6	52.8°F	47.8°F	58.0°F	analysis
Nov 7	54.7°F	49.9°F	60.6°F	analysis
Nov 8	56.2°F	51.3°F	61.9°F	analysis
Nov 9	56.8°F	52.1°F	62.3°F	analysis
Nov 10	57.6°F	53.0°F	63.0°F	analysis
Today	57.3°F	53.3°F	62.2°F	analysis
Nov 12	57.5°F	53.2°F	62.6°F	forecast
Nov 13	55.6°F	51.9°F	58.8°F	forecast
Nov 14	53.2°F	50.1°F	56.4°F	forecast
Nov 15	51.5°F	49.1°F	54.2°F	forecast
Nov 16	48.9°F	46.5°F	52.4°F	forecast
Nov 17	51.0°F	48.0°F	54.3°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	Feb 2
50°F	Pre-emergent window opens	Feb 8
55°F	Crabgrass can germinate	Feb 28
60°F	Tomatoes	Mar 21
65°F	Warm-season grass seed	Mar 22

Liberal, KS, 37 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

This ZIP code area covers about 403 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.

73901 58°F · 73951 56°F · 73942 57°F · 73944 56°F · 73950 58°F · 67951 56°F · 67901 56°F · 73931 57°F

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

Questions

What is the soil temperature in ZIP code 73945 today?: About 57°F on average in the top 4 inches (0–10 cm), low 53°F and high 62°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 8.7 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 73945?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 8 and 55°F from Feb 28.

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).