Sacramento, California Weather
Ceanothus blooms again. Day 93 of summer. Read this microseason across nine climate regions →
Sacramento weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:00 AM PDT · Open-Meteo
- TodaySep 21Clear later——82°54°—
- TuesdaySep 22Mostly Clear——84°56°+2°
- WednesdaySep 23Overcast——92°63°+8°
- ThursdaySep 24Overcast——92°66°0°
- FridaySep 25Overcast——88°62°-4°
- SaturdaySep 26Overcast——88°65°0°
- SundaySep 27Overcast——88°59°0°
Air quality now AQI 50 · Good
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.75 fine-to-coarse ratio and 6 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 7.5 µg/m³ (AQI 42) with a 0.75 fine-to-coarse ratio and 6 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
- 4:38 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 →
Sacramento at a glance
- Today vs. normal: Today averages 68°F (high 82°F, low 54°F), 4°F below the 72°F normal for Sep 21
- Last frost: January 12 (1991–2020 median, NOAA station 5 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant tomatoes, peppers, beans, squash, fall brassicas, carrots; harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Sacramento
- Mon82°54°2%
- Tue84°56°1%
- Wed92°63°0%
- Thu92°66°0%
- Fri88°62°1%
- Sat88°65°0%
- Sun88°59°1%
- Mon95°63°0%
- Tue98°67°2%
- Wed81°69°10%
- Thu88°66°3%
- Fri91°63°3%
- Sat84°60°6%
- Sun87°58°3%
- Mon81°66°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Sacramento
Interactive wind and temperature map centered on Sacramento — 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 16) is weeks away. Fall transplants go in about 10–12 weeks before the first frost, September 23 to October 7 here. This city's planting calendar for September: plant tomatoes, peppers, beans, squash, fall brassicas, and carrots; harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Sacramento
Sacramento sits in Sacramento County, where the year’s longest day runs 14h 52m of daylight and its shortest just 9h 28m — a swing of +5h 24m 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 352 miles to the SSE. The nearest town Sacramento tracks is Elk Grove, roughly 11 miles to the SSE.
Air quality in Sacramento
Air quality in Sacramento’s county has trended cleaner since 2020; its cleanest year on record was 2025 (median AQI 49). See the full air-quality history for Sacramento.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | spinach, radishes, fall brassicas, carrots |
| February | — | lettuce, peas, spinach, radishes |
| March | — | lettuce, peas, spinach |
| April | tomatoes, peppers, beans, squash | lettuce, peas |
| May | tomatoes, peppers, beans, squash | 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 | tomatoes, peppers, beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| October | beans, squash, fall brassicas, carrots | beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| December | lettuce, peas, spinach, radishes | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
A year in weather
Sacramento'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 Fruitridge Pocket, CA, Lemon Hill, CA, West Sacramento, CA
Sacramento'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.
Sacramento's moisture rides winter storm tracks: January brings 3.9 inches over 6.6 wet days, while July sees only 0.0 inches across 0.0 days in the dry warm season. That cool-season-wet pattern aligns Sacramento with places like Fruitridge Pocket, CA, Lemon Hill, CA and West Sacramento, CA.
By January 12 the frosts ease in Sacramento, opening the season for lettuce, chard, arugula, and mustard greens. In Sacramento, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Sacramento's frost date. It shuts near December 16, when freezes return to Sacramento and tender plants need cover. In about half of years, Sacramento's last freeze comes after January 12.
Similar climates: Fruitridge Pocket, CA, Lemon Hill, CA, West Sacramento, CA, Parkway, CA, Arden-Arcade, CA.
Frequently asked
- When does it freeze in Sacramento?
- In Sacramento, expect the last spring frost near January 12; Sacramento's first autumn frost comes around December 16.
- What is the rainy season in Sacramento?
- Rainfall in Sacramento peaks in January near 3.9 inches, out of about 19 inches annually.
- What is the warmest month in Sacramento?
- On average July tops the year in Sacramento at about 78°F.
- What is the coldest month in Sacramento?
- The coldest stretch in Sacramento falls in December, around 49°F on average.
- When can I start a vegetable garden in Sacramento?
- Hardy spring crops go in near January 12 in Sacramento; tender peppers and squash wait 10–14 days.
- How many rainy days does Sacramento get?
- Expect roughly 38 wet days a year in Sacramento.
- What hardiness zone is Sacramento?
- Since December in Sacramento averages 49°F, Sacramento's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Sacramento?
- Sacramento'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 Sacramento?
- See this week's day-by-day rain chances for Sacramento in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Sacramento?
- Current conditions for Sacramento and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Sacramento forecast updated?
- The Sacramento forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Sacramento?
- Today's sunrise and sunset times for Sacramento 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 Sacramento?
- The next few days in Sacramento's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Sacramento sits at 38.6°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Sacramento
- 94203
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