What is the soil temperature in ZIP code 58421 today?

About 46°F on average in the top 4 inches (0–10 cm), low 45°F and high 47°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 8.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 58421?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 24 and 55°F from May 25.

ZIP 58421 · North Dakota · Nov 11, 2026

Soil temperature for ZIP code 58421

46°Faverage today, 0–4 in deep (modelled)
low 45°F · high 47°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.8 km from the ZIP centre point

On a week ago

2° warmer

43°F on Nov 4

5-day mean

46°F

what the verdicts use

Held 55°F last spring

May 25

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	43.3°F	40.8°F	46.2°F	analysis
Nov 5	40.9°F	38.8°F	42.9°F	analysis
Nov 6	37.7°F	35.2°F	41.9°F	analysis
Nov 7	43.6°F	39.7°F	50.1°F	analysis
Nov 8	46.0°F	43.2°F	48.2°F	analysis
Nov 9	48.1°F	46.1°F	51.1°F	analysis
Nov 10	45.1°F	41.8°F	48.0°F	analysis
Today	45.5°F	44.9°F	46.8°F	analysis
Nov 12	36.5°F	34.7°F	39.0°F	forecast
Nov 13	32.9°F	30.7°F	34.9°F	forecast
Nov 14	33.1°F	31.2°F	36.8°F	forecast
Nov 15	37.2°F	34.1°F	41.5°F	forecast
Nov 16	41.1°F	37.0°F	46.9°F	forecast
Nov 17	45.4°F	42.8°F	48.4°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	Apr 13
50°F	Pre-emergent window opens	May 24
55°F	Crabgrass can germinate	May 25
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	not reached

Jamestown, ND, 65 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

This ZIP code area covers about 402 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.

58486 46°F · 58356 45°F · 58445 45°F · 58476 46°F · 58443 45°F · 58422 46°F · 58455 46°F · 58496 46°F

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

Questions

What is the soil temperature in ZIP code 58421 today?: About 46°F on average in the top 4 inches (0–10 cm), low 45°F and high 47°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 8.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 58421?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 24 and 55°F from May 25.

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).