Elk Grove, California Weather
Coastal fog thickens at dawn. Day 76 of spring. Read this microseason across nine climate regions →
Elk Grove weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——90°55°—
- ThursdayJun 4Clear——94°57°+4°
- FridayJun 5Partly Cloudy——100°58°+6°
- SaturdayJun 6Overcast——86°55°-14°
- SundayJun 7Overcast——88°49°+2°
- MondayJun 8Overcast12%—87°55°-1°
- TuesdayJun 9Partly Cloudy11%—82°57°-5°
Ozone at AQI 83 — peak already passed at 1 PM under clear skies. AQI flat over the last 6 hours (within ±3 points). Levels should ease through evening.
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 83 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 83
- UV peak
- 4.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 83
PM × Wind × Precip
PM2.5/PM10 ratio 0.67 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.67
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:55 AM
- Moonset
- 3:15 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Elk Grove at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 6 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.
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
July brings Elk Grove's peak warmth with average temperatures around 78°F, while December delivers the year's coldest conditions at roughly 49°F. January sees the heaviest rainfall at 3.9 inches, contrasting sharply with July's complete absence of precipitation 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
The city falls within a hot-summer Mediterranean climate region, sharing temperature ranges, seasonal cycles, and growing conditions with surrounding communities in this climate zone.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
Valley oaks begin their spring leaf emergence in late March as daylight hours lengthen past the vernal equinox.
Anna's hummingbirds start their peak nesting activity in February, taking advantage of the Mediterranean climate's early spring warming.
Frequently asked
- When does it freeze in Elk Grove?
- Spring's final frost usually occurs around mid-April in Elk Grove, while the season's first frost returns around mid-November.
- What is the rainy season in Elk Grove?
- January delivers the most rainfall, averaging about 3.9 inches, contributing to the city's annual total of roughly 19 inches.
- What is the warmest month in Elk Grove?
- July typically records the highest temperatures, with averages around 78°F.
- What is the coldest month in Elk Grove?
- December brings the coldest temperatures, averaging about 49°F.
- When can I start a vegetable garden in Elk Grove?
- Cool-season vegetables like peas and lettuce can be planted around the last spring frost in mid-April, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks later.
- How many rainy days does Elk Grove get?
- The city experiences approximately 38 rainy days annually.
- What hardiness zone is Elk Grove?
- The USDA hardiness zone for Elk Grove depends on average minimum winter temperatures; consult the USDA's online zone finder using the city's ZIP code for current designation.
Climate
Elk Grove, California experiences a hot-summer Mediterranean climate zone. Temperatures hover near 49°F in January and climb to an average of 78°F in July, creating a 29°F seasonal swing.
Annual precipitation totals approximately 19 inches, distributed across roughly 38 rainy days throughout the year.
Local weather patterns emerge from the city's position at 38.4°N latitude, its distance from large water bodies, and elevation factors. These elements determine plant growth cycles, frost timing, and daily weather conditions.