What is the soil temperature in ZIP code 57437 today?

About 47°F on average in the top 4 inches (0–10 cm), low 45°F and high 49°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 10.6 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 57437?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 11 and 55°F from May 25.

ZIP 57437 · South Dakota · Nov 11, 2026

Soil temperature for ZIP code 57437

47°Faverage today, 0–4 in deep (modelled)
low 45°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.6 km from the ZIP centre point

On a week ago

2° warmer

45°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	45.1°F	43.1°F	47.1°F	analysis
Nov 5	43.1°F	40.8°F	44.8°F	analysis
Nov 6	38.8°F	36.4°F	42.9°F	analysis
Nov 7	43.3°F	38.9°F	50.0°F	analysis
Nov 8	46.2°F	42.5°F	50.3°F	analysis
Nov 9	48.6°F	45.9°F	51.7°F	analysis
Nov 10	46.1°F	42.4°F	50.2°F	analysis
Today	47.3°F	45.1°F	49.2°F	analysis
Nov 12	41.1°F	38.9°F	45.4°F	forecast
Nov 13	35.0°F	33.0°F	36.9°F	forecast
Nov 14	35.5°F	33.4°F	39.8°F	forecast
Nov 15	39.9°F	37.7°F	43.5°F	forecast
Nov 16	43.9°F	40.0°F	49.7°F	forecast
Nov 17	47.8°F	45.6°F	50.6°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	Mar 22
50°F	Pre-emergent window opens	May 11
55°F	Crabgrass can germinate	May 25
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	not reached

This ZIP code area covers about 533 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.

57448 47°F · 58413 47°F · 58581 47°F · 57632 48°F · 57452 48°F · 57646 48°F · 57428 48°F · 57457 47°F

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

Questions

What is the soil temperature in ZIP code 57437 today?: About 47°F on average in the top 4 inches (0–10 cm), low 45°F and high 49°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 10.6 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 57437?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 11 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).