Mount Crested Butte, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Mount Crested Butte weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——75°49°—
- MondayJul 6Overcast——77°51°+2°
- TuesdayJul 7Overcast28%—74°49°-3°
- WednesdayJul 8Overcast17%—75°51°+1°
- ThursdayJul 9Light Drizzle21%0.01″72°49°-3°
- FridayJul 10Overcast——75°47°+3°
- SaturdayJul 11Mostly Clear——80°49°+5°
AQI 49 (Good), driven by PM2.5. AQI down 37 over the last 6 hours — air quality is improving sharply. PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 32
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:26 PM
- Moonset
- 11:23 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Mount Crested Butte at a glance
- Today vs. normal: 22°F below the seasonal normal for this latitude
- Last frost: April 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Mount Crested Butte
- Sun75°50°1%
- Mon77°51°7%
- Tue74°49°28%
- Wed75°51°17%
- Thu72°49°21%
- Fri75°47°5%
- Sat80°49°6%
- Sun79°49°10%
- Mon83°52°22%
- Tue82°53°22%
- Wed85°53°36%
- Thu84°52°51%
- Fri78°49°59%
- Sat82°51°61%
- Sun78°51°52%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Mount Crested Butte
SPC includes Mount Crested Butte in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Mount Crested Butte
- 81225