Pierce, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pierce, a town in Weld County, Colorado.
Overnight
57°F
Patchy Smoke
Patchy smoke. Mostly cloudy, with a low around 57. Northeast wind around 13 mph, with gusts as high as 21 mph.
7-day forecast for Pierce
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Patchy Smoke | 13 mph NE | 13% |
| Tuesday | 76°F | Patchy Smoke | 9 to 13 mph E | 5% |
| Tuesday Night | 53°F | Patchy Smoke | 6 to 15 mph ESE | 6% |
| Wednesday | 85°F | Patchy Smoke | 5 to 13 mph E | 0% |
| Wednesday Night | 55°F | Patchy Smoke then Mostly Clear | 5 to 14 mph ENE | 1% |
| Thursday | 97°F | Sunny | 5 to 13 mph NNW | 0% |
| Thursday Night | 58°F | Mostly Clear | 6 to 13 mph N | 1% |
| Friday | 98°F | Sunny | 5 to 13 mph NE | 0% |
| Friday Night | 61°F | Mostly Clear | 6 to 13 mph ENE | 0% |
| Saturday | 100°F | Sunny | 7 to 14 mph NW | 0% |
| Saturday Night | 61°F | Partly Cloudy | 8 to 14 mph N | 1% |
| Sunday | 99°F | Sunny | 7 to 13 mph NNW | 5% |
| Sunday Night | 63°F | Partly Cloudy | 9 to 14 mph NW | 5% |
| Monday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 15 mph NNE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Pierce (40.648, -104.780). Updated through the day.
Growing snapshot for Pierce
Last spring frost
May 13
First fall frost
Sep 27
Growing season
136 days
Hardiness zone
5b
More local growing data for Pierce: nearby ZIP 80650 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
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Ault
Berthoud
Briggsdale
Dacono
Eaton
Erie
Evans
Firestone
Fort Lupton
Frederick
Garden City
Gilcrest
Greeley
Grover
Hudson
Johnstown
Keenesburg
Kersey
La Salle
Mead
Milliken
Nunn
Orchard
Platteville
Raymer (New Raymer)
Severance
Windsor
Climate data from the nearest NOAA station, Nunn 7 Nne, Co (11 mi from Pierce). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.