ZIP 21671 · Chesapeake Beach, MD · Nov 11, 2026
Soil temperature for ZIP code 21671
low 53°F · high 58°F
Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 15.5 km from the ZIP centre point
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 | 60.6°F | 57.5°F | 63.6°F | analysis |
| Nov 5 | 64.9°F | 63.1°F | 67.4°F | analysis |
| Nov 6 | 65.4°F | 63.3°F | 66.7°F | analysis |
| Nov 7 | 57.7°F | 56.4°F | 60.0°F | analysis |
| Nov 8 | 53.7°F | 51.3°F | 55.2°F | analysis |
| Nov 9 | 54.2°F | 51.7°F | 56.5°F | analysis |
| Nov 10 | 53.8°F | 50.5°F | 56.8°F | analysis |
| Today | 56.1°F | 53.0°F | 58.4°F | analysis |
| Nov 12 | 56.4°F | 55.0°F | 57.3°F | forecast |
| Nov 13 | 51.6°F | 50.0°F | 54.1°F | forecast |
| Nov 14 | 45.3°F | 42.9°F | 46.6°F | forecast |
| Nov 15 | 44.4°F | 41.8°F | 46.6°F | forecast |
| Nov 16 | 44.3°F | 40.9°F | 47.0°F | forecast |
| Nov 17 | 45.2°F | 42.6°F | 47.1°F | forecast |
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 1 |
| 50°F | Pre-emergent window opens | Mar 30 |
| 55°F | Crabgrass can germinate | May 5 |
| 60°F | Tomatoes | May 17 |
| 65°F | Warm-season grass seed | Jun 5 |
Nearby ZIP codes
Today's modelled average.
21652 56°F · 21665 56°F · 21612 56°F · 21676 56°F · 21662 56°F · 21647 56°F · 21663 56°F · 21653 56°F
More: crabgrass timing in Maryland · every Maryland city · how accurate the model is.
Questions
- What is the soil temperature in ZIP code 21671 today?
- About 56°F on average in the top 4 inches (0–10 cm), low 53°F and high 58°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 15.5 km from the ZIP centre, not a reading from your yard.
- Is it time for crabgrass preventer in 21671?
- The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 30 and 55°F from May 5.
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).