Broomfield, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Broomfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——95°58°—
- MondayJul 6Overcast——98°64°+3°
- TuesdayJul 7Drizzle39%0.04″96°67°-2°
- WednesdayJul 8Rain63%0.16″97°65°+1°
- ThursdayJul 9Light Drizzle47%0.01″95°64°-2°
- FridayJul 10Overcast21%—98°61°+3°
- SaturdayJul 11Clear——103°64°+5°
AQI 41 (Good), driven by PM2.5. AQI down 14 over the last 6 hours (gradual decline). PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.85 fine-to-coarse ratio and 3 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
PM × Wind × Precip
PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.85 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:19 PM
- Moonset
- 11:15 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Broomfield at a glance
- Today vs. normal: 14°F below 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: 80020, 80021, 80023
16-Day Forecast — Broomfield
- Sun95°58°0%
- Mon98°64°4%
- Tue96°67°39%
- Wed97°65°63%
- Thu95°64°47%
- Fri98°61°21%
- Sat103°64°3%
- Sun106°70°2%
- Mon110°73°6%
- Tue107°69°13%
- Wed108°67°24%
- Thu109°74°44%
- Fri108°70°45%
- Sat95°70°44%
- Sun101°69°55%
- Mon98°74°55%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Broomfield
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 — Broomfield
SPC includes Broomfield 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 Broomfield
- 80023
- 80021
- 80020
- 80516
- 80038