Platteville, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Platteville, a town in Weld County, Colorado.
This Afternoon
85°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 76 in the afternoon. Southwest wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Platteville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Chance Showers And Thunderstorms | 7 mph SW | 43% |
| Tonight | 53°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 8 mph W | 34% |
| Saturday | 76°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph E | 76% |
| Saturday Night | 50°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 7 mph WNW | 59% |
| Sunday | 72°F | Chance Rain Showers | 2 to 6 mph NE | 54% |
| Sunday Night | 47°F | Chance Rain Showers then Partly Cloudy | 0 to 6 mph E | 30% |
| Monday | 73°F | Mostly Sunny | 0 to 8 mph SE | 2% |
| Monday Night | 49°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph ENE | 19% |
| Tuesday | 77°F | Mostly Sunny | 2 to 6 mph NNE | 9% |
| Tuesday Night | 52°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 mph S | 29% |
| Wednesday | 79°F | Partly Sunny | 6 mph NE | 7% |
| Wednesday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SSW | 16% |
| Thursday | 79°F | Mostly Sunny | 2 to 7 mph NNE | 8% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 7 mph SSE | 19% |
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 Sep 19, 2026.