Concord, California Weather
California lilac blooms in winter light. Day 50 of autumn. Read this microseason across nine climate regions →
Concord weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:29 PM PST · Open-Meteo
- TodayNov 10Clear——73°51°—
- WednesdayNov 11Clear——72°50°-1°
- ThursdayNov 12Overcast——68°52°-4°
- FridayNov 13Showers85%0.48″67°55°-1°
- SaturdayNov 14Heavy Drizzle37%—63°56°-4°
- SundayNov 15Light Drizzle49%—64°54°+1°
- MondayNov 16Showers44%0.66″61°53°-3°
Air quality now AQI 84 · Moderate
AQI 84 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.8 µg/m³ (AQI 38) with a 0.97 fine-to-coarse ratio and 3 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
Ozone × UV × Sky
Ozone at AQI 35 now. With UV 2.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 14.
- Present
- AQI 35
- UV peak
- 2.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 6.8 µg/m³ (AQI 38) with a 0.97 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.97
- 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).
When the wind is in the west, the weather is at its best.
- Moonrise
- 8:26 AM
- Moonset
- 5:05 PM
- In sign
- ♐︎ Sagittarius
California lilac blooms in winter light
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Concord at a glance
- Today vs. normal: Today averages 62°F (high 73°F, low 51°F), 5°F above the 57°F normal for Nov 10
- Last frost: January 9 (1991–2020 median, NOAA station 5 km away)
- Microseason: Nov 6–10
- Planting calendar: November — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Concord
- Tue73°51°0%
- Wed72°50°0%
- Thu68°52°4%
- Fri67°55°85%
- Sat63°56°37%
- Sun64°54°49%
- Mon61°53°44%
- Tue61°50°37%
- Wed61°55°56%
- Thu55°50°43%
- Fri58°48°15%
- Sat57°45°6%
- Sun59°46°23%
- Mon58°47°29%
- Tue61°51°16%
- Wed63°51°20%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Concord
Interactive wind and temperature map centered on Concord — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of November 10, the season's first frost (typically December 14) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for November: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Concord
Concord sits in Contra Costa County, where the year’s longest day runs 14h 48m of daylight and its shortest just 9h 32m — a swing of +5h 17m 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 334 miles to the SE. The nearest town Concord tracks is Antioch, roughly 11 miles to the E.
Air quality in Concord
Air quality in Concord’s county has held roughly steady since 2020; its cleanest year on record was 2021 (median AQI 47). See the full air-quality history for Concord.
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 | peas |
| May | tomatoes, peppers, beans, squash | garlic |
| June | beans, squash | 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 | — | tomatoes, peppers, 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
Concord's warmest month is August (~74°F mean) and its coldest is January (~49°F). Rainfall peaks in January (3.2 inches) and bottoms out in July (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.2″ | 9 |
| February | 53° | 3.2″ | 9 |
| March | 57° | 2.3″ | 9 |
| April | 60° | 1.1″ | 5 |
| May | 65° | 0.5″ | 3 |
| June | 71° | 0.2″ | 1 |
| July | 73° | 0.0″ | 0 |
| August | 74° | 0.0″ | 0 |
| September | 72° | 0.1″ | 1 |
| October | 65° | 0.7″ | 3 |
| November | 56° | 1.6″ | 7 |
| December | 50° | 3.2″ | 10 |
Regional context
Similar climates Pacheco, CA, Clyde, CA, Pleasant Hill, CA
In Concord, NOAA NCEI 1991-2020 normals put January near 49°F and July near 73°F — a 24°F seasonal arc — with about 16.1 inches of precipitation over 57 rainy or snowy days.
Precipitation in Concord peaks in the cool season: January averages 3.2 inches across 9.0 storm-fed days, while July bottoms out at 0.0 inches over just 0.0 rainy days. That cool-season-wet pattern aligns Concord with places like Pacheco, CA, Clyde, CA and Pleasant Hill, CA.
Around January 9, Concord sheds its freezing nights — lettuce, chard, arugula, and mustard greens go into Concord's beds. Heat-demanding starts go out a fortnight on in Concord, after the soil warms and cold snaps clear. Frost returns to Concord near December 14, ending the tender-crop season. Open lawns in Concord whiten first when frost returns.
Similar climates: Pacheco, CA, Clyde, CA, Pleasant Hill, CA, Contra Costa Centre, CA, Clayton, CA.
Frequently asked
- When does it freeze in Concord?
- Concord's last spring frost lands near January 9, and in Concord the first fall frost follows around December 14.
- What is the rainy season in Concord?
- Rainfall in Concord peaks in January near 3.2 inches, out of about 16 inches annually.
- What is the warmest month in Concord?
- August is Concord's warmest month, averaging about 74°F.
- What is the coldest month in Concord?
- Concord bottoms out in January, with a mean near 49°F.
- When can I start a vegetable garden in Concord?
- Frost-hardy sowings begin at January 9 in Concord; warm-season starts follow two weeks on.
- How many rainy days does Concord get?
- Concord records around 57 days of measurable precipitation annually.
- What hardiness zone is Concord?
- Concord sits in the USDA zone set by January lows near 49°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Concord?
- Concord'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 Concord?
- See this week's day-by-day rain chances for Concord in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Concord?
- Current conditions for Concord and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Concord forecast updated?
- The Concord forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Concord?
- Today's sunrise and sunset times for Concord 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 Concord?
- The next few days in Concord's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Concord sits at 38.0°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Concord
- 94518
- 94519
- 94520
- 94521
- 94522
- 94524
- 94527
- 94565