Hayden, Colorado Weather
Wind builds through canyons. Day 16 of summer. Read this microseason across nine climate regions →
Hayden weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Overcast——89°49°—
- TuesdayJul 7Overcast29%—86°61°-3°
- WednesdayJul 8Drizzle29%0.03″94°55°+8°
- ThursdayJul 9Light Drizzle17%—90°51°-4°
- FridayJul 10Overcast——93°52°+3°
- SaturdayJul 11Overcast——100°53°+7°
- SundayJul 12Partly Cloudy——103°55°+3°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.80 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 4.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.80 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.80
- Wind
- calm
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:51 PM
- Moonset
- 12:32 PM
- In sign
- ♓︎ Pisces
Wind builds through canyons
Hayden at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 81639
16-Day Forecast — Hayden
- Mon89°49°1%
- Tue86°61°29%
- Wed94°55°29%
- Thu90°51°17%
- Fri93°52°6%
- Sat100°53°0%
- Sun103°55°1%
- Mon102°57°7%
- Tue101°55°18%
- Wed99°56°20%
- Thu97°55°20%
- Fri97°55°38%
- Sat98°57°45%
- Sun98°56°48%
- Mon101°56°27%
- Tue101°57°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Hayden
SPC includes Hayden 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 Hayden
- 81639