What is the soil temperature in ZIP code 15633 today?

About 49°F on average in the top 4 inches (0–10 cm), low 45°F and high 52°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 12.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 15633?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 and 55°F from May 19.

ZIP 15633 · Greensburg, PA · Nov 11, 2026

Soil temperature for ZIP code 15633

49°Faverage today, 0–4 in deep (modelled)
low 45°F · high 52°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 12.2 km from the ZIP centre point

On a week ago

10° cooler

59°F on Nov 4

5-day mean

47°F

what the verdicts use

Held 55°F last spring

May 19

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	59.1°F	56.1°F	62.2°F	analysis
Nov 5	61.1°F	60.6°F	61.7°F	analysis
Nov 6	55.8°F	54.0°F	58.2°F	analysis
Nov 7	47.6°F	46.5°F	50.3°F	analysis
Nov 8	45.6°F	43.1°F	47.7°F	analysis
Nov 9	46.7°F	45.1°F	47.8°F	analysis
Nov 10	46.2°F	43.3°F	49.5°F	analysis
Today	48.7°F	45.4°F	51.8°F	analysis
Nov 12	49.5°F	48.3°F	50.8°F	forecast
Nov 13	44.2°F	42.5°F	46.5°F	forecast
Nov 14	38.7°F	37.3°F	39.6°F	forecast
Nov 15	39.0°F	37.7°F	40.4°F	forecast
Nov 16	41.4°F	39.9°F	43.3°F	forecast
Nov 17	41.2°F	38.2°F	42.9°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	Mar 5
50°F	Pre-emergent window opens	Apr 13
55°F	Crabgrass can germinate	May 19
60°F	Tomatoes	Jun 7
65°F	Warm-season grass seed	not reached

Murrysville, PA, 17 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

15635 49°F · 15662 49°F · 15624 49°F · 15619 49°F · 15601 49°F · 15626 48°F · 15670 48°F · 15644 49°F

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

Questions

What is the soil temperature in ZIP code 15633 today?: About 49°F on average in the top 4 inches (0–10 cm), low 45°F and high 52°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 12.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 15633?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 and 55°F from May 19.

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).