What is the soil temperature in ZIP code 32421 today?

About 66°F on average in the top 4 inches (0–10 cm), low 63°F and high 68°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 4.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 32421?

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 11.

ZIP 32421 · Marianna, FL · Nov 11, 2026

Soil temperature for ZIP code 32421

66°Faverage today, 0–4 in deep (modelled)
low 63°F · high 68°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 4.9 km from the ZIP centre point

On a week ago

8° cooler

74°F on Nov 4

5-day mean

65°F

what the verdicts use

Held 55°F last spring

Feb 11

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedWarm enough
TomatoesSoil warm enough
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	73.9°F	71.2°F	76.7°F	analysis
Nov 5	75.3°F	72.1°F	78.5°F	analysis
Nov 6	74.1°F	72.1°F	75.0°F	analysis
Nov 7	67.7°F	65.8°F	69.9°F	analysis
Nov 8	62.9°F	58.6°F	66.6°F	analysis
Nov 9	64.7°F	60.9°F	68.2°F	analysis
Nov 10	64.6°F	60.0°F	68.8°F	analysis
Today	65.6°F	62.7°F	67.8°F	analysis
Nov 12	66.4°F	64.0°F	68.8°F	forecast
Nov 13	62.2°F	59.5°F	64.7°F	forecast
Nov 14	55.3°F	52.5°F	57.7°F	forecast
Nov 15	53.5°F	49.0°F	58.1°F	forecast
Nov 16	57.2°F	56.8°F	57.7°F	forecast
Nov 17	55.7°F	54.8°F	56.3°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	never below
50°F	Pre-emergent window opens	Feb 8
55°F	Crabgrass can germinate	Feb 11
60°F	Tomatoes	Mar 2
65°F	Warm-season grass seed	Mar 6

Panama City, FL, 59 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

32430 66°F · 32448 65°F · 32424 66°F · 32438 65°F · 32420 64°F · 32432 65°F · 32442 65°F · 32449 67°F

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

Questions

What is the soil temperature in ZIP code 32421 today?: About 66°F on average in the top 4 inches (0–10 cm), low 63°F and high 68°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 4.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 32421?: 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 11.

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).