What is the soil temperature in ZIP code 74820 today?

About 64°F on average in the top 4 inches (0–10 cm), low 61°F and high 67°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 6.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 74820?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 7 and 55°F from Feb 10.

ZIP 74820 · Ada, OK · Nov 11, 2026

Soil temperature for ZIP code 74820

64°Faverage today, 0–4 in deep (modelled)
low 61°F · high 67°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 6.8 km from the ZIP centre point

On a week ago

3° warmer

61°F on Nov 4

5-day mean

59°F

what the verdicts use

Held 55°F last spring

Feb 10

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	60.8°F	57.5°F	64.1°F	analysis
Nov 5	61.6°F	58.0°F	65.1°F	analysis
Nov 6	59.9°F	58.2°F	61.4°F	analysis
Nov 7	55.3°F	52.3°F	58.4°F	analysis
Nov 8	55.6°F	51.7°F	60.1°F	analysis
Nov 9	57.8°F	53.3°F	63.1°F	analysis
Nov 10	62.7°F	59.7°F	66.9°F	analysis
Today	64.2°F	61.2°F	67.0°F	analysis
Nov 12	61.3°F	57.7°F	64.3°F	forecast
Nov 13	57.3°F	54.6°F	59.5°F	forecast
Nov 14	53.0°F	50.3°F	55.4°F	forecast
Nov 15	51.8°F	49.9°F	53.7°F	forecast
Nov 16	51.5°F	49.0°F	55.5°F	forecast
Nov 17	51.4°F	47.8°F	55.3°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 4
50°F	Pre-emergent window opens	Feb 7
55°F	Crabgrass can germinate	Feb 10
60°F	Tomatoes	Mar 1
65°F	Warm-season grass seed	May 14

Ada, OK, 5 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

74844 64°F · 74843 64°F · 74849 64°F · 74842 66°F · 74865 64°F · 74867 64°F · 74872 64°F · 74871 66°F

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

Questions

What is the soil temperature in ZIP code 74820 today?: About 64°F on average in the top 4 inches (0–10 cm), low 61°F and high 67°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 6.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 74820?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 7 and 55°F from Feb 10.

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).