Arden-Arcade, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Arden-Arcade weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——88°60°—
- MondayJul 6Overcast——88°56°0°
- TuesdayJul 7Overcast——92°57°+4°
- WednesdayJul 8Clear——98°59°+6°
- ThursdayJul 9Clear——101°64°+3°
- FridayJul 10Overcast——103°64°+2°
- SaturdayJul 11Overcast——102°69°-1°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.1 µg/m³, PM10 at 9.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 34 now. With UV 9.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 30 around 1 PM.
- Present
- AQI 34
- UV peak
- 9.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 30
PM × Wind × Precip
PM2.5 at 7.1 µg/m³, PM10 at 9.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.72
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:25 PM
- Moonset
- 11:24 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Arden-Arcade at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Arden-Arcade
- Sun88°60°0%
- Mon88°56°1%
- Tue92°57°0%
- Wed98°59°0%
- Thu101°64°0%
- Fri103°64°0%
- Sat102°69°0%
- Sun83°70°1%
- Mon103°71°3%
- Tue109°74°4%
- Wed108°73°2%
- Thu109°71°2%
- Fri110°77°3%
- Sat106°73°3%
- Sun102°70°0%
- Mon102°66°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Arden-Arcade
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.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 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
The year in Arden-Arcade tops out in July (~78°F) and dips lowest in December (~49°F), with January wettest at 3.9 inches and July driest at 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.9″ | 7 |
| February | 53° | 3.6″ | 7 |
| March | 57° | 2.8″ | 6 |
| April | 61° | 1.4″ | 3 |
| May | 68° | 0.9″ | 2 |
| June | 74° | 0.2″ | 1 |
| July | 78° | 0.0″ | 0 |
| August | 77° | 0.0″ | 0 |
| September | 74° | 0.1″ | 0 |
| October | 66° | 0.9″ | 2 |
| November | 55° | 1.8″ | 4 |
| December | 49° | 3.5″ | 6 |
Regional context
Arden-Arcade's climate, from NOAA NCEI 1991-2020 station normals, pairs 49°F Januarys with 78°F Julys — a 29°F swing. About 19.2 inches of precipitation falls over roughly 38 days a year.
Precipitation in Arden-Arcade peaks in the cool season: January averages 3.9 inches across 6.6 storm-fed days, while July bottoms out at 0.0 inches over just 0.0 rainy days. It is a winter-storm rhythm Arden-Arcade shares with places like La Riviera, CA, Carmichael, CA and Rosemont, CA.
Arden-Arcade rarely sees a hard freeze — its coldest month sits near 49°F — so planting spans most of the calendar. Heat peaks in July around 78°F, which confines cool-season crops to the shoulders of summer. Arden-Arcade's coastal lots stay 4-7°F milder overnight than Arden-Arcade's inland parcels.
Similar climates: La Riviera, CA, Carmichael, CA, Rosemont, CA, McClellan Park, CA, North Highlands, CA.
Naturalist notes
By mid-May, valley carpenter bees are patrolling garden blossoms and defending aerial territories across the region's oak-studded lots.
Shortly after the June solstice, the constellation Scorpius rises fully above the southeastern horizon after twilight, with Antares burning orange-red through the dry summer air.
Frequently asked
- When does it freeze in Arden-Arcade?
- Frost typically leaves Arden-Arcade by mid-April and returns to Arden-Arcade near mid-November.
- What is the rainy season in Arden-Arcade?
- Rainfall in Arden-Arcade peaks in January near 3.9 inches, out of about 19 inches annually.
- What is the warmest month in Arden-Arcade?
- On average July tops the year in Arden-Arcade at about 78°F.
- What is the coldest month in Arden-Arcade?
- The coldest stretch in Arden-Arcade falls in December, around 49°F on average.
- When can I start a vegetable garden in Arden-Arcade?
- In Arden-Arcade, sow peas and hardy greens around mid-April; Arden-Arcade's tomatoes and peppers wait two weeks more.
- How many rainy days does Arden-Arcade get?
- Expect roughly 38 wet days a year in Arden-Arcade.
- What hardiness zone is Arden-Arcade?
- Since December in Arden-Arcade averages 49°F, Arden-Arcade's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Arden-Arcade?
- Arden-Arcade'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 Arden-Arcade?
- See this week's day-by-day rain chances for Arden-Arcade in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Arden-Arcade?
- Current conditions for Arden-Arcade and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Arden-Arcade forecast updated?
- The Arden-Arcade forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Arden-Arcade?
- Today's sunrise and sunset times for Arden-Arcade 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 Arden-Arcade?
- The next few days in Arden-Arcade's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a hot-summer Mediterranean zone, Arden-Arcade, California swings from 49°F in the heart of winter to 78°F at midsummer — a 29°F arc.
Yearly precipitation in Arden-Arcade totals around 19 inches, spread over about 38 days of rain or snow.
Arden-Arcade sits at 38.6°N; that 29°F seasonal swing frames planting windows and frost dates across Arden-Arcade.
ZIP codes in Arden-Arcade
- 95821
- 95864
- 95825
- 95860
- 95865
- 95866