Glendale, Colorado Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Glendale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——92°61°—
- SundayJul 5Overcast11%—95°66°+3°
- MondayJul 6Overcast10%—97°69°+2°
- TuesdayJul 7Light Drizzle50%0.01″97°72°0°
- WednesdayJul 8Light Rain38%0.07″96°70°-1°
- ThursdayJul 9Overcast30%—97°68°+1°
- FridayJul 10Overcast11%—99°72°+2°
AQI 63 (Moderate), driven by PM2.5. AQI down 36 over the last 6 hours — air quality is improving sharply. PM2.5 at 17.3 µg/m³ (AQI 66) with a 0.92 fine-to-coarse ratio and 6 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 17.3 µg/m³ (AQI 66) with a 0.92 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 10:55 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Glendale at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Glendale
- Sat92°61°5%
- Sun95°66°11%
- Mon97°69°10%
- Tue97°72°50%
- Wed96°70°38%
- Thu97°68°30%
- Fri99°72°11%
- Sat99°70°6%
- Sun104°74°8%
- Mon106°77°15%
- Tue103°79°27%
- Wed94°71°39%
- Thu95°69°39%
- Fri92°69°46%
- Sat96°73°45%
- Sun97°75°41%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Glendale
SPC has placed Glendale in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.
Microseason · July 1–5
Monsoon storms drench the south
Monsoon established in southern Mountain West (New Mexico, southern Utah, Arizona north); afternoon downpours and lightning common.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Glendale peaks at about 72°F in July and bottoms near 25°F in December; May brings the heaviest rain (3.3 inches) and January the least (0.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 25° | 0.9″ | 10 |
| February | 28° | 1.1″ | 11 |
| March | 33° | 1.9″ | 15 |
| April | 44° | 2.6″ | 18 |
| May | 55° | 3.3″ | 21 |
| June | 66° | 2.1″ | 20 |
| July | 72° | 2.2″ | 23 |
| August | 70° | 1.8″ | 23 |
| September | 63° | 1.4″ | 15 |
| October | 48° | 1.4″ | 11 |
| November | 33° | 1.4″ | 12 |
| December | 25° | 0.9″ | 10 |
Regional context
In Glendale, NOAA NCEI 1991-2020 normals put January near 25°F and July near 72°F — a 46°F seasonal arc — with about 21 inches of precipitation over 191 rainy or snowy days.
Precipitation in Glendale runs summer-dominant: May averages 3.3 inches across 21.2 days of warm-season storms, while January drops to 0.9 inches over 10.4 rainy days of drier cool air. That puts Glendale in a summer-convective cohort with places like Holly Hills, CO, Four Square Mile, CO and Cherry Hills Village, CO.
Around mid-April, Glendale sheds its freezing nights — kale, peas, spinach, and parsnips go into Glendale's beds. Glendale's heat-lovers — tomatoes, peppers, squash — hold off until Glendale's frost risk clears, 10-14 days on. The season ends by mid-November in Glendale, once hard frosts set back in. Glendale's low ground holds frost later into spring than Glendale's benches, which run 3-5 days ahead.
Similar climates: Holly Hills, CO, Four Square Mile, CO, Cherry Hills Village, CO, Englewood, CO, Denver, CO.
Frequently asked
- When does it freeze in Glendale?
- Glendale's last spring frost lands near mid-April, and in Glendale the first fall frost follows around mid-November.
- What is the rainy season in Glendale?
- May is the wettest month in Glendale, about 3.3 inches on average; the year totals roughly 21 inches.
- What is the warmest month in Glendale?
- The warmest stretch in Glendale comes in July, around 72°F on average.
- What is the coldest month in Glendale?
- On average December is the chilliest month in Glendale, about 25°F.
- When can I start a vegetable garden in Glendale?
- Time tomatoes in Glendale for two weeks after mid-April; peas and greens start at Glendale's frost line.
- How many rainy days does Glendale get?
- Glendale records around 191 days of measurable precipitation annually.
- What hardiness zone is Glendale?
- Glendale's USDA zone comes from its December mean (25°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Glendale?
- Glendale's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Glendale?
- See this week's day-by-day rain chances for Glendale in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Glendale?
- Current conditions for Glendale and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Glendale forecast updated?
- The Glendale forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Glendale?
- Today's sunrise and sunset times for Glendale are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Glendale?
- The next few days in Glendale's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Glendale, Colorado occupies a hot desert zone, with January means near 25°F and July around 72°F — a 47°F swing.
Across the year, Glendale collects about 21 inches of precipitation over roughly 191 days with measurable rain or snow.
Latitude 39.7°N gives Glendale its 47°F swing, and with it the rhythm of Glendale's growing season.
ZIP codes in Glendale
- 80246