Aspen, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Aspen, a city in Pitkin County, Colorado.
Today
90°F
Patchy Smoke
Patchy smoke before 4pm. Mostly sunny, with a high near 90. West northwest wind 5 to 10 mph, with gusts as high as 25 mph.
7-day forecast for Aspen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Patchy Smoke | 5 to 10 mph WNW | 3% |
| Tonight | 52°F | Patchy Smoke then Mostly Clear | 0 to 10 mph S | 1% |
| Wednesday | 88°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Thursday | 89°F | Sunny | 0 to 10 mph WSW | 0% |
| Thursday Night | 53°F | Clear | 0 to 10 mph SW | 0% |
| Friday | 91°F | Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 55°F | Mostly Clear | 5 mph SW | 0% |
| Saturday | 91°F | Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 57°F | Partly Cloudy | 5 mph ESE | 0% |
| Sunday | 91°F | Sunny | 0 to 5 mph W | 7% |
| Sunday Night | 57°F | Partly Cloudy | 0 to 5 mph S | 4% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 35% |
| Monday Night | 54°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph S | 34% |
Forecast source: National Weather Service (api.weather.gov) for Aspen (39.195, -106.837). Updated through the day.
Growing snapshot for Aspen
Last spring frost
May 31
First fall frost
Sep 23
Growing season
114 days
Hardiness zone
5b
More local growing data for Aspen: nearby ZIP 81656 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Aspen Pitkin Co Ap, Co (5.8 mi from Aspen). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.