Platteville, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Platteville, a town in Weld County, Colorado.
Today
58°F
Sunny
Sunny. High near 58, with temperatures falling to around 54 in the afternoon. North northeast wind 6 to 9 mph.
7-day forecast for Platteville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Sunny | 6 to 9 mph NNE | 0% |
| Tonight | 33°F | Mostly Clear | 5 mph SSW | 0% |
| Wednesday | 57°F | Mostly Sunny | 1 to 5 mph N | 4% |
| Wednesday Night | 36°F | Mostly Cloudy | 3 mph NNW | 4% |
| Thursday | 60°F | Sunny | 5 mph WNW | 0% |
| Thursday Night | 35°F | Partly Cloudy | 3 mph SW | 0% |
| Friday | 59°F | Mostly Sunny | 5 mph N | 2% |
| Friday Night | 34°F | Partly Cloudy | 3 mph SW | 2% |
| Saturday | 58°F | Sunny | 5 mph SSE | 1% |
| Saturday Night | 32°F | Mostly Clear | 3 mph SSW | 1% |
| Sunday | 62°F | Sunny | 2 mph S | 0% |
| Sunday Night | 35°F | Mostly Clear | 3 mph WSW | 0% |
| Monday | 66°F | Sunny | 2 mph SE | 0% |
| Monday Night | 38°F | Partly Cloudy | 2 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Platteville (40.223, -104.834). Updated through the day.
Growing snapshot for Platteville
Last spring frost
May 2
First fall frost
Oct 8
Growing season
159 days
Hardiness zone
5b
More local growing data for Platteville: nearby ZIP 80651 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Greeley Unc, Co (12.8 mi from Platteville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.