What is the soil temperature in ZIP code 63304 today?

About 58°F on average in the top 4 inches (0–10 cm), low 54°F and high 61°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 7.4 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 63304?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 22 and 55°F from Apr 11.

ZIP 63304 · Weldon Spring, MO · Nov 11, 2026

Soil temperature for ZIP code 63304

58°Faverage today, 0–4 in deep (modelled)
low 54°F · high 61°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 7.4 km from the ZIP centre point

On a week ago

4° cooler

62°F on Nov 4

5-day mean

53°F

what the verdicts use

Held 55°F last spring

Apr 11

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	61.9°F	60.5°F	64.5°F	analysis
Nov 5	55.9°F	53.4°F	57.3°F	analysis
Nov 6	54.1°F	53.4°F	55.7°F	analysis
Nov 7	47.8°F	44.0°F	50.6°F	analysis
Nov 8	48.2°F	43.4°F	54.2°F	analysis
Nov 9	53.5°F	48.8°F	59.0°F	analysis
Nov 10	56.6°F	52.8°F	60.5°F	analysis
Today	57.6°F	54.2°F	60.9°F	analysis
Nov 12	54.4°F	53.2°F	56.6°F	forecast
Nov 13	45.0°F	42.6°F	47.6°F	forecast
Nov 14	41.4°F	37.5°F	44.9°F	forecast
Nov 15	42.2°F	38.2°F	46.2°F	forecast
Nov 16	43.4°F	39.5°F	47.2°F	forecast
Nov 17	43.7°F	39.7°F	47.5°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 13
50°F	Pre-emergent window opens	Mar 22
55°F	Crabgrass can germinate	Apr 11
60°F	Tomatoes	May 16
65°F	Warm-season grass seed	May 27

O'Fallon, MO, 12 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

63368 58°F · 63005 58°F · 63341 58°F · 63367 58°F · 63376 60°F · 63303 60°F · 63017 60°F · 63038 57°F

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

Questions

What is the soil temperature in ZIP code 63304 today?: About 58°F on average in the top 4 inches (0–10 cm), low 54°F and high 61°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 7.4 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 63304?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 22 and 55°F from Apr 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).