What is the soil temperature in ZIP code 59255 today?

About 45°F on average in the top 4 inches (0–10 cm), low 41°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 6.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 59255?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 23.

ZIP 59255 · Montana · Nov 11, 2026

Soil temperature for ZIP code 59255

45°Faverage today, 0–4 in deep (modelled)
low 41°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 6.9 km from the ZIP centre point

On a week ago

2° warmer

42°F on Nov 4

5-day mean

46°F

what the verdicts use

Held 55°F last spring

May 23

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	42.2°F	37.2°F	48.5°F	analysis
Nov 5	42.5°F	38.1°F	47.9°F	analysis
Nov 6	44.0°F	40.9°F	48.1°F	analysis
Nov 7	46.3°F	42.2°F	51.9°F	analysis
Nov 8	45.4°F	40.7°F	51.5°F	analysis
Nov 9	48.6°F	46.8°F	50.7°F	analysis
Nov 10	44.3°F	40.4°F	49.4°F	analysis
Today	44.6°F	40.9°F	48.6°F	analysis
Nov 12	43.6°F	40.4°F	47.6°F	forecast
Nov 13	43.3°F	40.8°F	46.6°F	forecast
Nov 14	42.7°F	40.0°F	46.0°F	forecast
Nov 15	43.2°F	39.5°F	47.8°F	forecast
Nov 16	44.6°F	41.1°F	49.0°F	forecast
Nov 17	46.3°F	43.7°F	49.2°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 20
50°F	Pre-emergent window opens	May 2
55°F	Crabgrass can germinate	May 23
60°F	Tomatoes	May 25
65°F	Warm-season grass seed	not reached

This ZIP code area covers about 689 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.

59213 45°F · 59201 45°F · 59274 46°F · 59226 44°F · 59222 43°F · 59258 43°F · 59247 43°F · 59257 42°F

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

Questions

What is the soil temperature in ZIP code 59255 today?: About 45°F on average in the top 4 inches (0–10 cm), low 41°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 6.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 59255?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 23.

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).