Aspen, Colorado Weather
Thunderheads build by noon. Day 89 of spring. Read this microseason across nine climate regions →
Aspen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Clear——79°48°—
- WednesdayJun 17Partly Cloudy——83°56°+4°
- ThursdayJun 18Overcast——82°52°-1°
- FridayJun 19Overcast——84°54°+2°
- SaturdayJun 20Overcast——79°53°-5°
- SundayJun 21Mostly Clear——79°49°0°
- MondayJun 22Overcast——78°48°-1°
AQI 48 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 58 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 60 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 58 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 60 around 1 PM.
- Present
- AQI 58
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 60
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:57 AM
- Moonset
- 9:55 PM
- In sign
- ♋︎ Cancer
Thunderheads build by noon
Aspen at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Aspen
- Tue79°48°1%
- Wed83°56°1%
- Thu82°52°0%
- Fri84°54°2%
- Sat79°53°2%
- Sun79°49°4%
- Mon78°48°5%
- Tue75°50°3%
- Wed82°54°2%
- Thu83°54°3%
- Fri86°56°7%
- Sat84°56°6%
- Sun83°53°6%
- Mon80°52°14%
- Tue75°50°30%
- Wed69°48°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Warm-season window is open
As of June 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
ZIP codes in Aspen
- 81611