What is the soil temperature in ZIP code 53549 today?

About 48°F on average in the top 4 inches (0–10 cm), low 46°F and high 48°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 2.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 53549?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 16 and 55°F from May 26.

ZIP 53549 · Jefferson, WI · Nov 11, 2026

Soil temperature for ZIP code 53549

48°Faverage today, 0–4 in deep (modelled)
low 46°F · high 48°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 2.1 km from the ZIP centre point

On a week ago

12° cooler

59°F on Nov 4

5-day mean

46°F

what the verdicts use

Held 55°F last spring

May 26

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	59.2°F	56.5°F	61.3°F	analysis
Nov 5	52.0°F	50.7°F	53.9°F	analysis
Nov 6	46.0°F	44.5°F	48.3°F	analysis
Nov 7	41.8°F	38.4°F	44.9°F	analysis
Nov 8	44.6°F	41.3°F	49.2°F	analysis
Nov 9	46.1°F	42.9°F	49.2°F	analysis
Nov 10	48.3°F	44.9°F	51.7°F	analysis
Today	47.6°F	45.9°F	48.3°F	analysis
Nov 12	44.2°F	42.2°F	47.1°F	forecast
Nov 13	38.1°F	35.7°F	39.5°F	forecast
Nov 14	36.1°F	33.0°F	38.8°F	forecast
Nov 15	36.9°F	33.0°F	40.8°F	forecast
Nov 16	37.9°F	33.9°F	41.6°F	forecast
Nov 17	39.2°F	35.7°F	42.8°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 16
55°F	Crabgrass can germinate	May 26
60°F	Tomatoes	Jun 5
65°F	Warm-season grass seed	not reached

Watertown, WI, 24 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

53137 48°F · 53038 48°F · 53538 48°F · 53178 47°F · 53551 48°F · 53156 47°F · 53094 47°F · 53190 48°F

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

Questions

What is the soil temperature in ZIP code 53549 today?: About 48°F on average in the top 4 inches (0–10 cm), low 46°F and high 48°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 2.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 53549?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 16 and 55°F from May 26.

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).