What is the soil temperature in ZIP code 97034 today?

About 55°F on average in the top 4 inches (0–10 cm), low 53°F and high 59°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 11.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 97034?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 6 and 55°F from Apr 30.

ZIP 97034 · Lake Oswego, OR · Nov 11, 2026

Soil temperature for ZIP code 97034

55°Faverage today, 0–4 in deep (modelled)
low 53°F · high 59°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.2 km from the ZIP centre point

On a week ago

2° warmer

53°F on Nov 4

5-day mean

55°F

what the verdicts use

Held 55°F last spring

Apr 30

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	52.9°F	50.5°F	56.2°F	analysis
Nov 5	53.0°F	50.7°F	57.2°F	analysis
Nov 6	53.4°F	51.4°F	56.9°F	analysis
Nov 7	55.1°F	53.2°F	58.8°F	analysis
Nov 8	55.7°F	53.7°F	57.8°F	analysis
Nov 9	52.5°F	51.7°F	54.2°F	analysis
Nov 10	54.6°F	53.4°F	56.5°F	analysis
Today	55.3°F	53.2°F	59.3°F	analysis
Nov 12	55.1°F	53.9°F	56.4°F	forecast
Nov 13	52.7°F	52.3°F	53.7°F	forecast
Nov 14	51.7°F	50.7°F	52.6°F	forecast
Nov 15	52.0°F	51.2°F	53.3°F	forecast
Nov 16	50.1°F	48.0°F	53.7°F	forecast
Nov 17	48.6°F	46.2°F	52.7°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	Jan 29
50°F	Pre-emergent window opens	Apr 6
55°F	Crabgrass can germinate	Apr 30
60°F	Tomatoes	Jun 13
65°F	Warm-season grass seed	Jun 15

Portland, OR, 13 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

97035 55°F · 97219 55°F · 97267 55°F · 97222 55°F · 97068 54°F · 97027 55°F · 97062 54°F · 97223 55°F

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

Questions

What is the soil temperature in ZIP code 97034 today?: About 55°F on average in the top 4 inches (0–10 cm), low 53°F and high 59°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 11.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 97034?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 6 and 55°F from Apr 30.

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).