What is the soil temperature in ZIP code 97918 today?

About 49°F on average in the top 4 inches (0–10 cm), low 44°F and high 56°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 9.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 97918?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 19 and 55°F from May 1.

ZIP 97918 · Ontario, OR · Nov 11, 2026

Soil temperature for ZIP code 97918

49°Faverage today, 0–4 in deep (modelled)
low 44°F · high 56°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.8 km from the ZIP centre point

On a week ago

2° warmer

47°F on Nov 4

5-day mean

47°F

what the verdicts use

Held 55°F last spring

May 1

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	47.3°F	42.6°F	55.2°F	analysis
Nov 5	48.5°F	44.2°F	55.8°F	analysis
Nov 6	46.8°F	41.7°F	54.1°F	analysis
Nov 7	46.8°F	42.2°F	53.8°F	analysis
Nov 8	46.8°F	43.1°F	51.7°F	analysis
Nov 9	45.8°F	41.6°F	52.3°F	analysis
Nov 10	48.0°F	43.3°F	55.0°F	analysis
Today	48.8°F	44.0°F	56.2°F	analysis
Nov 12	48.6°F	44.3°F	54.8°F	forecast
Nov 13	47.5°F	44.0°F	52.6°F	forecast
Nov 14	49.6°F	47.2°F	53.5°F	forecast
Nov 15	46.7°F	43.2°F	52.1°F	forecast
Nov 16	47.4°F	46.6°F	48.3°F	forecast
Nov 17	45.7°F	45.2°F	46.7°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	Feb 25
50°F	Pre-emergent window opens	Mar 19
55°F	Crabgrass can germinate	May 1
60°F	Tomatoes	May 3
65°F	Warm-season grass seed	May 6

This ZIP code area covers about 585 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

97909 47°F · 97914 51°F · 97920 48°F · 97913 50°F · 97903 47°F · 83619 51°F · 83660 52°F · 97901 51°F

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

Questions

What is the soil temperature in ZIP code 97918 today?: About 49°F on average in the top 4 inches (0–10 cm), low 44°F and high 56°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 9.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 97918?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 19 and 55°F from May 1.

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).