Glendale, California Weather
August begins in scorching stillness. Day 43 of summer. Read this microseason across nine climate regions →
Glendale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Clear——89°64°—
- MondayAug 3Clear——88°67°-1°
- TuesdayAug 4Clear——93°65°+5°
- WednesdayAug 5Clear——91°71°-2°
- ThursdayAug 6Clear——89°70°-2°
- FridayAug 7Clear——90°70°+1°
- SaturdayAug 8Clear——91°71°+1°
AQI 70 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 33.3 µg/m³ (AQI 96) with a 0.92 fine-to-coarse ratio and 4 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.
What's driving it
PM × Wind × Precip
PM2.5 at 33.3 µg/m³ (AQI 96) with a 0.92 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.92
- 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).








































Red sky at night, sailor's delight.
- Moonrise
- 9:38 PM
- Moonset
- 10:02 AM
- In sign
- ♓︎ Pisces
August begins in scorching stillness
Glendale at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 12 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 91201, 91202, 91203, 91204, 91205, 91206, 91207, 91208 +1 more
16-Day Forecast — Glendale
- Sun89°64°0%
- Mon88°67°0%
- Tue93°65°0%
- Wed91°71°0%
- Thu89°70°0%
- Fri90°70°0%
- Sat91°71°0%
- Sun89°70°1%
- Mon87°69°1%
- Tue86°69°0%
- Wed86°68°0%
- Thu87°68°6%
- Fri89°70°10%
- Sat89°71°5%
- Sun90°71°6%
- Mon89°70°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Glendale
Right now in the garden
Peak growing season
As of August 2, 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.
Sun & seasons in Glendale
Glendale sits in Los Angeles County, where the year’s longest day runs 14h 26m of daylight and its shortest just 9h 52m — a swing of +4h 34m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Los Angeles, the state’s largest city, lies about 10 miles to the WSW. The nearest town Glendale tracks is Pasadena, roughly 6 miles to the ESE.
Air quality in Glendale’s county has trended cleaner since 2020; its cleanest year on record was 2023 (median AQI 67). See the full air-quality history for Glendale.
Microseason · August 1–5
August begins in scorching stillness
Calm days dominate early August; temperatures peak; the entire ecosystem is in survival mode.
Day 214 of 365 · Wedge 43 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
In Glendale, August runs warmest near 76°F and December coldest around 55°F, while February is the wettest month (4.5 inches) and August the driest (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 3.6″ | 5 |
| February | 56° | 4.5″ | 5 |
| March | 59° | 2.8″ | 4 |
| April | 62° | 0.9″ | 2 |
| May | 65° | 0.4″ | 1 |
| June | 69° | 0.1″ | 0 |
| July | 74° | 0.0″ | 0 |
| August | 76° | 0.0″ | 0 |
| September | 74° | 0.1″ | 0 |
| October | 68° | 0.7″ | 1 |
| November | 60° | 0.8″ | 2 |
| December | 55° | 2.5″ | 4 |
Regional context
In Glendale, NOAA NCEI 1991-2020 normals put January near 56°F and July near 74°F — a 18°F seasonal arc — with about 16.5 inches of precipitation over 24 rainy or snowy days.
Precipitation in Glendale peaks in the cool season: February averages 4.5 inches across 5.1 storm-fed days, while August bottoms out at 0.0 inches over just 0.1 rainy days. That groups Glendale with places like La Cañada Flintridge, CA, La Crescenta-Montrose, CA and Burbank, CA on the same cool-season storm track.
Hard freezes are rare in Glendale: the coldest month averages 55°F, so Glendale's growing window runs most of the year. August is the hottest stretch near 76°F, pushing cool-season crops to the milder shoulder months. Across Glendale, elevation and tree cover drive a 4-7°F spread in Glendale's overnight lows.
Similar climates: La Cañada Flintridge, CA, La Crescenta-Montrose, CA, Burbank, CA, Pasadena, CA, Altadena, CA.
Naturalist notes
California poppies begin their golden bloom across Glendale's hillsides during late March and early April.
Allen's hummingbirds return from their winter range in late February, their courtship dives becoming a common sight by March.
Frequently asked
- When does it freeze in Glendale?
- Glendale's last spring frost lands near mid-March, and in Glendale the first fall frost follows around mid-December.
- What is the rainy season in Glendale?
- February is the wettest month in Glendale, about 4.5 inches on average; the year totals roughly 17 inches.
- What is the warmest month in Glendale?
- August is Glendale's warmest month, averaging about 76°F.
- What is the coldest month in Glendale?
- Glendale bottoms out in December, with a mean near 55°F.
- When can I start a vegetable garden in Glendale?
- Glendale's last frost (mid-March) cues hardy greens; in Glendale, hold heat-lovers two weeks past.
- How many rainy days does Glendale get?
- Expect roughly 24 wet days a year in Glendale.
- What hardiness zone is Glendale?
- Glendale sits in the USDA zone set by December lows near 55°F; the USDA ZIP tool gives the band.
- 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, California has a hot-summer Mediterranean climate: January averages roughly 56°F, July about 74°F, 18°F between them.
Yearly precipitation in Glendale totals around 17 inches, spread over about 24 days of rain or snow.
Latitude 34.2°N gives Glendale its 18°F swing, and with it the rhythm of Glendale's growing season.
ZIP codes in Glendale
- 91210
- 91214
- 91201
- 91205
- 91208
- 91203
- 91202
- 91204
- 91207
- 91206
- 91046
- 91020
- 91209
- 91221
- 91222
- 91225
- 91226