What is the soil temperature in ZIP code 33909 today?

About 79°F on average in the top 4 inches (0–10 cm), low 75°F and high 84°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 4.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 33909?

Soil here stayed above 50°F all last winter, so the 50 to 55°F soil rule gives no spring window. Time pre-emergent to your local calendar.

ZIP 33909 · North Fort Myers, FL · Nov 11, 2026

Soil temperature for ZIP code 33909

79°Faverage today, 0–4 in deep (modelled)
low 75°F · high 84°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 4.8 km from the ZIP centre point

On a week ago

No change

79°F on Nov 4

5-day mean

78°F

what the verdicts use

Held 55°F last spring

Feb 7

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	79.0°F	74.1°F	82.9°F	analysis
Nov 5	80.1°F	74.8°F	83.9°F	analysis
Nov 6	80.9°F	75.1°F	85.8°F	analysis
Nov 7	79.7°F	74.8°F	83.2°F	analysis
Nov 8	77.5°F	71.9°F	80.9°F	analysis
Nov 9	77.2°F	70.8°F	81.8°F	analysis
Nov 10	78.4°F	73.4°F	82.4°F	analysis
Today	79.4°F	75.1°F	83.6°F	analysis
Nov 12	77.3°F	74.4°F	79.8°F	forecast
Nov 13	73.9°F	72.4°F	74.9°F	forecast
Nov 14	66.7°F	63.1°F	68.5°F	forecast
Nov 15	65.1°F	58.0°F	72.2°F	forecast
Nov 16	69.5°F	68.5°F	70.6°F	forecast
Nov 17	67.7°F	66.9°F	69.4°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	never below
55°F	Crabgrass can germinate	Feb 7
60°F	Tomatoes	Feb 10
65°F	Warm-season grass seed	Jan 6

Cape Coral, FL, 18 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

33903 79°F · 33993 79°F · 33990 79°F · 33991 79°F · 33955 79°F · 33917 79°F · 33901 79°F · 33916 79°F

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

Questions

What is the soil temperature in ZIP code 33909 today?: About 79°F on average in the top 4 inches (0–10 cm), low 75°F and high 84°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 4.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 33909?: Soil here stayed above 50°F all last winter, so the 50 to 55°F soil rule gives no spring window. Time pre-emergent to your local calendar.

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).