Hayden, Colorado Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Hayden weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Partly Cloudy——79°41°—
- ThursdayJun 4Overcast——83°51°+4°
- FridayJun 5Clear——83°52°0°
- SaturdayJun 6Overcast——84°50°+1°
- SundayJun 7Overcast——81°50°-3°
- MondayJun 8Mostly Clear——81°44°0°
- TuesdayJun 9Overcast——86°49°+5°
Ozone at AQI 43. AQI flat over the last 6 hours (within ±3 points). Overcast through the UV peak window (cloud cover ~92%) — afternoon ozone should stay flat.
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 43. Overcast through the UV peak window (cloud cover ~92%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 5.2 µg/m³ (AQI 29) with a 0.66 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.66
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:41 AM
- Moonset
- 3:12 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Hayden at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, 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.