What is the soil temperature in ZIP code 56733 today?

About 42°F on average in the top 4 inches (0–10 cm), low 40°F and high 45°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 14.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 56733?

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 56733 · Minnesota · Nov 11, 2026

Soil temperature for ZIP code 56733

42°Faverage today, 0–4 in deep (modelled)
low 40°F · high 45°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 14.6 km from the ZIP centre point

On a week ago

2° cooler

44°F on Nov 4

5-day mean

44°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	44.3°F	42.2°F	46.2°F	analysis
Nov 5	41.5°F	39.3°F	42.7°F	analysis
Nov 6	38.0°F	35.4°F	41.8°F	analysis
Nov 7	41.4°F	37.0°F	47.9°F	analysis
Nov 8	45.1°F	42.5°F	47.0°F	analysis
Nov 9	46.8°F	43.6°F	51.0°F	analysis
Nov 10	44.7°F	41.1°F	47.7°F	analysis
Today	41.8°F	39.8°F	45.1°F	analysis
Nov 12	36.4°F	34.5°F	38.6°F	forecast
Nov 13	32.9°F	30.7°F	34.7°F	forecast
Nov 14	33.0°F	30.9°F	36.1°F	forecast
Nov 15	34.9°F	32.6°F	39.1°F	forecast
Nov 16	41.1°F	37.5°F	46.0°F	forecast
Nov 17	45.6°F	43.8°F	47.9°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 22
50°F	Pre-emergent window opens	May 24
55°F	Crabgrass can germinate	May 25
60°F	Tomatoes	May 28
65°F	Warm-season grass seed	not reached

Grand Forks, ND, 80 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

56720 43°F · 56728 42°F · 56757 43°F · 56729 40°F · 58225 44°F · 56734 40°F · 56732 41°F · 56758 41°F

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

Questions

What is the soil temperature in ZIP code 56733 today?: About 42°F on average in the top 4 inches (0–10 cm), low 40°F and high 45°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 14.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 56733?: 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).