Brighton, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Brighton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast10%—93°60°—
- SundayJul 5Overcast——97°61°+4°
- MondayJul 6Overcast——100°64°+3°
- TuesdayJul 7Light Drizzle36%—97°64°-3°
- WednesdayJul 8Light Drizzle58%—93°64°-4°
- ThursdayJul 9Overcast38%—100°59°+7°
- FridayJul 10Overcast16%—94°61°-6°
AQI 102 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI up 40 in the last 6 hours — air quality is degrading. PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 46 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 around 1 PM.
- Present
- AQI 46
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 10.7 µg/m³ (AQI 54) 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
- 11:18 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Brighton at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 80601, 80602, 80603
16-Day Forecast — Brighton
- Sat93°60°10%
- Sun97°61°3%
- Mon100°64°8%
- Tue97°64°36%
- Wed93°64°58%
- Thu100°59°38%
- Fri94°61°16%
- Sat97°56°5%
- Sun102°62°2%
- Mon110°63°5%
- Tue108°64°15%
- Wed111°67°31%
- Thu109°76°39%
- Fri105°70°43%
- Sat103°67°44%
- Sun95°66°50%
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 — Brighton
SPC has placed Brighton in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Brighton
- 80603
- 80601