Elk Grove, California Weather
Ceanothus blooms again. Day 93 of summer. Read this microseason across nine climate regions →
Elk Grove weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 7:25 AM PDT · Open-Meteo
- TodaySep 21Clear later——80°55°—
- TuesdaySep 22Clear——84°54°+4°
- WednesdaySep 23Clear——93°59°+9°
- ThursdaySep 24Overcast——92°63°-1°
- FridaySep 25Overcast——87°60°-5°
- SaturdaySep 26Overcast——86°59°-1°
- SundaySep 27Overcast——84°54°-2°
Air quality now AQI 51 · Moderate
AQI 51 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.75 fine-to-coarse ratio and 5 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 8.9 µg/m³ (AQI 49) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.75
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:37 PM
- Moonset
- 1:37 AM
- In sign
- ♑︎ Capricorn
Ceanothus blooms again
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Elk Grove at a glance
- Today vs. normal: Today averages 68°F (high 80°F, low 55°F), 4°F below the 72°F normal for Sep 21
- Last frost: February 2 (1991–2020 median, NOAA station 14 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant beans, squash, fall brassicas, carrots; harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Elk Grove
- Mon80°55°2%
- Tue84°54°1%
- Wed93°59°0%
- Thu92°63°0%
- Fri87°60°0%
- Sat86°59°0%
- Sun84°54°1%
- Mon91°59°1%
- Tue93°62°1%
- Wed97°65°2%
- Thu86°69°1%
- Fri91°77°10%
- Sat101°72°0%
- Sun98°68°0%
- Mon91°58°0%
- Tue89°60°0%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Elk Grove
Interactive wind and temperature map centered on Elk Grove — it loads in your browser. Open the full weather map.
Right now in the garden
Peak growing season
As of September 21, the growing season is at its peak — the first frost (around December 2) is weeks away. Fall transplants go in about 10–12 weeks before the first frost, September 9 to September 23 here. This city's planting calendar for September: plant beans, squash, fall brassicas, and carrots; harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Elk Grove
Elk Grove sits in Sacramento County, where the year’s longest day runs 14h 51m of daylight and its shortest just 9h 29m — a swing of +5h 22m 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 340 miles to the SSE. The nearest town Elk Grove tracks is Sacramento, roughly 11 miles to the NNW.
Air quality in Elk Grove
Air quality in Elk Grove’s county has trended cleaner since 2020; its cleanest year on record was 2025 (median AQI 49). See the full air-quality history for Elk Grove.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | — |
| February | lettuce, peas, spinach, radishes | lettuce, spinach, radishes |
| March | — | lettuce, peas, spinach, radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach |
| May | tomatoes, peppers, beans, squash | peas, summer squash, garlic |
| June | beans, squash | tomatoes, peppers, beans, summer squash |
| July | beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| September | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
Elk Grove's warmest month is July (~78°F mean) and its coldest is December (~49°F). Rainfall peaks in January (3.9 inches) and bottoms out in July (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
Similar climates Florin, CA, Vineyard, CA, Parkway, CA
By the nearest station's NOAA NCEI 1991-2020 normals, Elk Grove sees 49°F Januarys and 78°F Julys, a 29°F range, plus around 19.2 inches of precipitation across 38 days.
Precipitation in Elk Grove 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. That cool-season-wet pattern aligns Elk Grove with places like Florin, CA, Vineyard, CA and Parkway, CA.
By February 2 the frosts ease in Elk Grove, opening the season for lettuce, chard, arugula, and mustard greens. Warm-soil crops in Elk Grove wait about two weeks past Elk Grove's last frost, once the soil warms. It shuts near December 2, when freezes return to Elk Grove and tender plants need cover. Sheltered Elk Grove yards can escape a light frost.
Similar climates: Florin, CA, Vineyard, CA, Parkway, CA, Freeport, CA, Hood, CA.
Frequently asked
- When does it freeze in Elk Grove?
- Frost typically leaves Elk Grove by February 2 and returns to Elk Grove near December 2.
- What is the rainy season in Elk Grove?
- Rainfall in Elk Grove peaks in January near 3.9 inches, out of about 19 inches annually.
- What is the warmest month in Elk Grove?
- On average July tops the year in Elk Grove at about 78°F.
- What is the coldest month in Elk Grove?
- The coldest stretch in Elk Grove falls in December, around 49°F on average.
- When can I start a vegetable garden in Elk Grove?
- In Elk Grove, sow peas and hardy greens around February 2; Elk Grove's tomatoes and peppers wait two weeks more.
- How many rainy days does Elk Grove get?
- Elk Grove records around 38 days of measurable precipitation annually.
- What hardiness zone is Elk Grove?
- Since December in Elk Grove averages 49°F, Elk Grove's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Elk Grove?
- Elk Grove'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 Elk Grove?
- See this week's day-by-day rain chances for Elk Grove in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Elk Grove?
- Current conditions for Elk Grove and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Elk Grove forecast updated?
- The Elk Grove forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Elk Grove?
- Today's sunrise and sunset times for Elk Grove 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 Elk Grove?
- The next few days in Elk Grove's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Elk Grove sits at 38.4°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Elk Grove
- 95624
- 95757
- 95758
- 95759