Live Soil Data · Powered by Open-Meteo

Check Your Soil
Temperature Right Now

Enter any US ZIP code. Get real-time soil temperatures at every depth — and see exactly which crops are ready to plant today.

Try:
✓ No account required
✓ Updated hourly
✓ 4 true soil depths
Topsoil
Root zone
Deep roots
Subsoil
0 cm
6 cm
18 cm
54 cm
—°F
—°F
—°F
—°F
Surface
~2 in
~7 in
~21 in
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Live data
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Live data
How It Works

Live data, in three steps

No hardware, no signup. Real satellite and NWP model data, delivered instantly.

1
Enter Your ZIP

We geocode your ZIP to precise lat/lon coordinates using OpenStreetMap's Nominatim API.

2
Fetch Soil Data

We query Open-Meteo's NWP model for real-time soil temperatures at 4 true depths — surface through 21 inches down.

3
Get Your Verdict

Your soil temps are matched against 15+ crop germination ranges so you know exactly what's ready to plant.

Surface · 0 cm
Topsoil Zone
Seed germination & lawn
~65°
~2 inches · 6 cm
Shallow Root Zone
Seedlings & annuals
~62°
~7 inches · 18 cm
Vegetable Root Zone
Tomatoes, peppers, squash
~58°
~21 inches · 54 cm
Deep Root Zone
Perennials & trees
~54°
Why Depth Matters

Your seeds don't feel the air temperature

Most weather apps show air temperature — but germination happens in the soil. A warm 65°F afternoon can mask a 44°F ground temperature at 2 inches.

SoilIQ tracks four true soil depths so you know the temperature where your seeds actually sit.

The SoilIQ app extends this with 14-day forecasts, crop-specific alerts, and watering schedules tailored to your exact location and crop.

The full experience lives
in the SoilIQ app

130+ crops. 14-day soil forecasts. Watering schedules. Frost alerts. Everything this page shows, plus real-time push notifications on your iPhone.

Download Free on the App Store Learn more about SoilIQ
Questions

Frequently asked

We use Open-Meteo, which aggregates data from multiple NWP models including ECMWF, GFS, and ERA5. Soil temperature accuracy is typically within 2–4°F of ground-truth measurements, updated hourly. For critical decisions, cross-reference with a physical soil thermometer.
Ranges are based on data from the USDA, University Extension programs, and seed supplier specifications. "Ready Now" = current temp within the ideal range. "Coming Up" = within 8°F of the minimum. The SoilIQ app covers 130+ crops with AI-powered planting window analysis.
Weather model data resolves at approximately 0.1° grid cells (~7 miles). Two nearby ZIPs in different grid cells will show slightly different values. For hyper-local accuracy, use a physical soil thermometer or the SoilIQ app's calibration feature.
This page is completely free, no account required. The SoilIQ iOS app adds: 14-day soil forecasts, all 130+ crops, custom watering schedules with push reminders, frost risk alerts, soil health scoring, a growing journal, and a live Home Screen widget — updated continuously in the background.