What is the soil temperature in ZIP code 51350 today?

About 48°F on average in the top 4 inches (0–10 cm), low 45°F and high 51°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 10.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 51350?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 and 55°F from May 11.

ZIP 51350 · Sheldon, IA · Nov 11, 2026

Soil temperature for ZIP code 51350

48°Faverage today, 0–4 in deep (modelled)
low 45°F · high 51°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.2 km from the ZIP centre point

On a week ago

No change

48°F on Nov 4

5-day mean

47°F

what the verdicts use

Held 55°F last spring

May 11

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	48.1°F	46.2°F	50.3°F	analysis
Nov 5	46.7°F	45.8°F	47.5°F	analysis
Nov 6	41.6°F	38.8°F	43.9°F	analysis
Nov 7	42.0°F	37.5°F	47.9°F	analysis
Nov 8	46.7°F	43.6°F	49.8°F	analysis
Nov 9	48.1°F	44.0°F	53.4°F	analysis
Nov 10	48.5°F	44.9°F	51.7°F	analysis
Today	48.1°F	45.4°F	50.7°F	analysis
Nov 12	42.6°F	40.4°F	45.6°F	forecast
Nov 13	37.3°F	35.9°F	38.6°F	forecast
Nov 14	35.9°F	33.7°F	38.2°F	forecast
Nov 15	35.4°F	34.1°F	37.4°F	forecast
Nov 16	39.8°F	36.2°F	45.3°F	forecast
Nov 17	43.5°F	40.4°F	47.4°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	Mar 21
50°F	Pre-emergent window opens	Apr 13
55°F	Crabgrass can germinate	May 11
60°F	Tomatoes	May 26
65°F	Warm-season grass seed	May 28

Nearby ZIP codes

Today's modelled average.

51354 48°F · 51248 48°F · 51249 48°F · 51232 48°F · 51346 48°F · 51345 48°F · 56117 48°F · 51231 49°F

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

Questions

What is the soil temperature in ZIP code 51350 today?: About 48°F on average in the top 4 inches (0–10 cm), low 45°F and high 51°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 10.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 51350?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Apr 13 and 55°F from May 11.

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).