Portland, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a community in Ouray County, Colorado.
Today
88°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 88. West northwest wind 0 to 10 mph.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Patchy Smoke | 0 to 10 mph WNW | 8% |
| Tonight | 61°F | Patchy Smoke | 5 to 10 mph S | 1% |
| Wednesday | 87°F | Patchy Smoke then Sunny | 0 to 10 mph WSW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Thursday | 87°F | Sunny | 0 to 10 mph WNW | 0% |
| Thursday Night | 60°F | Clear | 0 to 10 mph ENE | 0% |
| Friday | 88°F | Sunny | 0 to 10 mph NE | 0% |
| Friday Night | 61°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Saturday | 89°F | Sunny | 5 to 10 mph SSW | 1% |
| Saturday Night | 61°F | Mostly Clear | 5 to 10 mph WSW | 0% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph WSW | 19% |
| Sunday Night | 61°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SW | 13% |
| Monday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph W | 49% |
| Monday Night | 60°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 29% |
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 Aug 4, 2026.