Portland, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a community in Ouray County, Colorado.
Tonight
33°F
Partly Cloudy
Partly cloudy, with a low around 33. Southeast wind 5 to 10 mph.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 33°F | Partly Cloudy | 5 to 10 mph SE | 0% |
| Wednesday | 49°F | Chance Rain And Snow Showers | 5 to 10 mph SW | 68% |
| Wednesday Night | 33°F | Rain And Snow Showers Likely | 0 to 5 mph ESE | 61% |
| Thursday | 49°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 34°F | Mostly Cloudy | 5 mph S | 1% |
| Friday | 47°F | Slight Chance Rain And Snow Showers | 0 to 5 mph NW | 18% |
| Friday Night | 31°F | Partly Cloudy | 0 mph | 13% |
| Saturday | 52°F | Sunny | 0 mph | 1% |
| Saturday Night | 35°F | Clear | 0 to 5 mph ESE | 0% |
| Sunday | 58°F | Sunny | 0 mph | 0% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Monday | 58°F | Mostly Sunny | 0 to 5 mph NNW | 5% |
| Monday Night | 39°F | Mostly Cloudy | 0 to 5 mph S | 5% |
| Tuesday | 56°F | Mostly Sunny | 0 to 5 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Portland (38.089, -107.695). Updated through the day.
Growing snapshot for Portland
Last spring frost
Jun 11
First fall frost
Sep 13
Growing season
92 days
Hardiness zone
6a
More local growing data for Portland: nearby ZIP 81432 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ridgway, Co (1.6 mi from Portland). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.