Mission Viejo, California Weather
California lilac blooms in winter light. Day 50 of autumn. Read this microseason across nine climate regions →
Mission Viejo weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:29 PM PST · Open-Meteo
- TodayNov 10Clear——85°62°—
- WednesdayNov 11Clear——83°60°-2°
- ThursdayNov 12Overcast27%—75°59°-8°
- FridayNov 13Drizzle66%—69°61°-6°
- SaturdayNov 14Showers66%0.22″65°61°-4°
- SundayNov 15Light Drizzle27%—67°61°+2°
- MondayNov 16Drizzle54%0.01″64°59°-3°
Air quality now AQI 42 · Good
AQI 42 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 65 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 65 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29.
- Present
- AQI 65
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 5.2 µg/m³ (AQI 29) with a 0.68 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.68
- 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).
When the wind is in the west, the weather is at its best.
- Moonrise
- 7:54 AM
- Moonset
- 5:01 PM
- In sign
- ♐︎ Sagittarius
California lilac blooms in winter light
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Mission Viejo at a glance
- Today vs. normal: Today averages 74°F (high 85°F, low 62°F), 13°F above the 61°F normal for Nov 10
- Last frost: None in most years — 32°F in 4% of 1991–2020 years (NOAA station 14 km away)
- Microseason: Nov 6–10
- Planting calendar: November — plant lettuce, peas, spinach, radishes; harvest lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Mission Viejo
- Tue84°62°0%
- Wed83°60°0%
- Thu75°59°27%
- Fri69°61°66%
- Sat65°61°66%
- Sun67°61°27%
- Mon64°59°54%
- Tue65°56°43%
- Wed65°55°33%
- Thu66°59°35%
- Fri70°56°31%
- Sat70°53°13%
- Sun70°55°14%
- Mon72°58°16%
- Tue71°58°10%
- Wed70°57°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Mission Viejo
Interactive wind and temperature map centered on Mission Viejo — it loads in your browser. Open the full weather map.
Right now in the garden
Year-round growing
As of November 10, sowing here runs through the year. Freezes are uncommon, so there is no frost date to plan around; heat and rainfall set the calendar instead. This city's planting calendar for November: plant lettuce, peas, spinach, and radishes; harvest lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Mission Viejo
Mission Viejo sits in Orange County, where the year’s longest day runs 14h 23m of daylight and its shortest just 9h 55m — a swing of +4h 28m 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 55 miles to the NW. The nearest town Mission Viejo tracks is Irvine, roughly 8 miles to the NW.
Air quality in Mission Viejo
Air quality in Mission Viejo’s county has held roughly steady since 2020; its cleanest year on record was 2023 (median AQI 52). See the full air-quality history for Mission Viejo.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes |
| February | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes |
| March | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, summer squash |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash |
| July | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| August | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| September | lettuce, peas, spinach, radishes, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| October | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| November | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| December | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes |
A year in weather
August is Mission Viejo's warmest stretch (~71°F) and December its coldest (~56°F); precipitation crests in February at 3.4 inches and ebbs in August to 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 2.8″ | 5 |
| February | 56° | 3.4″ | 5 |
| March | 59° | 1.6″ | 3 |
| April | 61° | 0.8″ | 2 |
| May | 65° | 0.2″ | 1 |
| June | 67° | 0.1″ | 1 |
| July | 70° | 0.1″ | 0 |
| August | 71° | 0.0″ | 0 |
| September | 70° | 0.2″ | 0 |
| October | 66° | 0.5″ | 1 |
| November | 60° | 1.1″ | 1 |
| December | 56° | 1.9″ | 3 |
Regional context
Similar climates Las Flores, CA, Laguna Hills, CA, Rancho Santa Margarita, CA
By the nearest station's NOAA NCEI 1991-2020 normals, Mission Viejo sees 56°F Januarys and 70°F Julys, a 14°F range, plus around 12.7 inches of precipitation across 23 days.
Cool-season fronts carry Mission Viejo's rain: February logs 3.4 inches on 5.3 days, against August's 0.0 inches on 0.0 — winter does the heavy lifting in Mission Viejo. That groups Mission Viejo with places like Las Flores, CA, Laguna Hills, CA and Rancho Santa Margarita, CA on the same cool-season storm track.
Freezes are uncommon in Mission Viejo, where the coldest month averages 56°F; cool-season crops grow fall through spring. Summer heat in August (about 71°F) is the binding constraint, not cold. Mission Viejo's rare cold nights chill open ground first.
Similar climates: Las Flores, CA, Laguna Hills, CA, Rancho Santa Margarita, CA, Lake Forest, CA, Coto de Caza, CA.
Frequently asked
- When does it freeze in Mission Viejo?
- Most years Mission Viejo doesn't freeze: the nearest NOAA station reached 32°F in 4% of 1991–2020 years, so Mission Viejo has no reliable frost date.
- What is the rainy season in Mission Viejo?
- Rainfall in Mission Viejo peaks in February near 3.4 inches, out of about 13 inches annually.
- What is the warmest month in Mission Viejo?
- On average August tops the year in Mission Viejo at about 71°F.
- What is the coldest month in Mission Viejo?
- The coldest stretch in Mission Viejo falls in December, around 56°F on average.
- When can I start a vegetable garden in Mission Viejo?
- Mission Viejo has no frost date to wait for, so sowing runs year-round; lettuce and greens do best when Mission Viejo's coldest month settles near 56°F.
- How many rainy days does Mission Viejo get?
- Mission Viejo averages about 23 days with measurable rain or snow each year.
- What hardiness zone is Mission Viejo?
- With December around 56°F, Mission Viejo's zone reflects that minimum — the USDA ZIP map confirms Mission Viejo's band.
- What is the 10-day forecast for Mission Viejo?
- Mission Viejo'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 Mission Viejo?
- See this week's day-by-day rain chances for Mission Viejo in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Mission Viejo?
- Current conditions for Mission Viejo and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Mission Viejo forecast updated?
- The Mission Viejo forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Mission Viejo?
- Today's sunrise and sunset times for Mission Viejo 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 Mission Viejo?
- The next few days in Mission Viejo's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Mission Viejo sits at 33.6°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Mission Viejo
- 92690
- 92691
- 92692