Vista, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Vista weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——79°65°—
- MondayJul 6Foggy——78°62°-1°
- TuesdayJul 7Overcast——87°58°+9°
- WednesdayJul 8Clear——91°58°+4°
- ThursdayJul 9Clear——90°60°-1°
- FridayJul 10Overcast——88°59°-2°
- SaturdayJul 11Overcast——84°62°-4°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.3 µg/m³ (AQI 57), ratio 0.69 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
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 43 now. With UV 12 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 69 around 1 PM.
- Present
- AQI 43
- UV peak
- 12.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 69
PM × Wind × Precip
PM2.5 at 12.3 µg/m³ (AQI 57), ratio 0.69 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.69
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:04 PM
- Moonset
- 11:08 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Vista at a glance
- Today vs. normal: 79°F — typical for the season
- Last frost: March 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 92081, 92083, 92084
16-Day Forecast — Vista
- Sun79°65°0%
- Mon78°62°1%
- Tue87°58°0%
- Wed91°58°0%
- Thu90°60°0%
- Fri88°59°0%
- Sat84°62°1%
- Sun90°62°3%
- Mon90°61°10%
- Tue93°68°11%
- Wed95°70°6%
- Thu98°72°24%
- Fri98°71°18%
- Sat94°68°14%
- Sun96°68°10%
- Mon98°63°6%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Vista
Right now in the garden
Peak growing season
As of July 5, 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.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
In Vista, August runs warmest near 70°F and December coldest around 53°F, while February is the wettest month (2.9 inches) and August the driest (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 54° | 2.4″ | 3 |
| February | 54° | 2.9″ | 5 |
| March | 56° | 1.7″ | 3 |
| April | 58° | 0.9″ | 2 |
| May | 62° | 0.3″ | 1 |
| June | 66° | 0.1″ | 0 |
| July | 69° | 0.1″ | 0 |
| August | 70° | 0.0″ | 0 |
| September | 69° | 0.1″ | 0 |
| October | 64° | 0.6″ | 1 |
| November | 57° | 0.8″ | 2 |
| December | 53° | 2.0″ | 3 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Vista sees 54°F Januarys and 69°F Julys, a 16°F range, plus around 11.9 inches of precipitation across 20 days.
Vista's moisture rides winter storm tracks: February brings 2.9 inches over 4.6 wet days, while August sees only 0.0 inches across 0.1 days in the dry warm season. That cool-season-wet pattern aligns Vista with places like Oceanside, CA, Lake San Marcos, CA and Carlsbad, CA.
Freezes are uncommon in Vista, where the coldest month averages 53°F; cool-season crops grow fall through spring. Summer heat in August (about 70°F) is the binding constraint, not cold. Vista's coastal lots stay 4-7°F milder overnight than Vista's inland parcels.
Similar climates: Oceanside, CA, Lake San Marcos, CA, Carlsbad, CA, San Marcos, CA, Bonsall, CA.
Frequently asked
- When does it freeze in Vista?
- In Vista, expect the last spring frost near mid-March; Vista's first autumn frost comes around mid-December.
- What is the rainy season in Vista?
- February is the wettest month in Vista, about 2.9 inches on average; the year totals roughly 12 inches.
- What is the warmest month in Vista?
- On average August tops the year in Vista at about 70°F.
- What is the coldest month in Vista?
- The coldest stretch in Vista falls in December, around 53°F on average.
- When can I start a vegetable garden in Vista?
- Hardy spring crops go in near mid-March in Vista; tender peppers and squash wait 10–14 days.
- How many rainy days does Vista get?
- Expect roughly 20 wet days a year in Vista.
- What hardiness zone is Vista?
- With December around 53°F, Vista's zone reflects that minimum — the USDA ZIP map confirms Vista's band.
- What is the 10-day forecast for Vista?
- Vista'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 Vista?
- See this week's day-by-day rain chances for Vista in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Vista?
- Current conditions for Vista and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Vista forecast updated?
- The Vista forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Vista?
- Today's sunrise and sunset times for Vista 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 Vista?
- The next few days in Vista's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The hot-summer Mediterranean climate of Vista, California carries typical Januarys near 54°F and Julys around 69°F — 15°F of seasonal travel.
Yearly precipitation in Vista totals around 12 inches, spread over about 20 days of rain or snow.
From 33.2°N, Vista sees a 15°F seasonal swing that governs Vista's planting and frost windows.
ZIP codes in Vista
- 92084
- 92083
- 92081
- 92085