Northglenn, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Northglenn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——95°60°—
- MondayJul 6Overcast——99°65°+4°
- TuesdayJul 7Drizzle37%0.03″95°73°-4°
- WednesdayJul 8Rain61%0.17″97°70°+2°
- ThursdayJul 9Drizzle48%0.03″94°71°-3°
- FridayJul 10Partly Cloudy20%—97°69°+3°
- SaturdayJul 11Clear——103°73°+6°
AQI 55 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 15.0 µg/m³ (AQI 62) with a 0.87 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 15.0 µg/m³ (AQI 62) with a 0.87 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
Northglenn at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Northglenn
- Sun95°60°2%
- Mon99°65°6%
- Tue95°73°37%
- Wed97°70°61%
- Thu94°71°48%
- Fri97°69°20%
- Sat103°73°4%
- Sun106°79°2%
- Mon108°80°6%
- Tue106°79°13%
- Wed107°79°21%
- Thu108°82°29%
- Fri107°73°42%
- Sat96°75°42%
- Sun102°77°26%
- Mon97°82°48%
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 — Northglenn
SPC includes Northglenn 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 Northglenn
- 80260
- 80233
- 80234
- 80603