Current Conditions

Tustin Legacy, California

77°F25°C
Partly Cloudy

Wind

WSW 10 mph16 km/h

Humidity

63%

Cloud Cover

31%

As of Wednesday, August 12, 2026 at 4:43 PM PDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 80°F26°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h.

Night

Mostly cloudy, with a low around 70°F21°C. Light wind from the SW around 5 mph9 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 80°F26°CLow 70°F21°CPrecip 0 in0 mmCloud 54%Wind WSW 7 mph12 km/hWednesday: Partly cloudy and warm, with a high of 80°F26°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. Wednesday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the SW around 5 mph9 km/h.
CloudyHigh 77°F25°CLow 68°F20°CPrecip 0 in0.1 mm1%Cloud 88%Wind SW 5 mph9 km/hThursday: Overcast and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. Thursday Night: Overcast, with a low around 68°F20°C. Light wind from the SW around 4 mph7 km/h.
ClearHigh 78°F26°CLow 68°F20°CPrecip 0.01 in0.2 mm3%Cloud 31%Wind WSW 6 mph9 km/hFriday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the SW at 7 to 10 mph11 to 16 km/h. Friday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph7 km/h.
ClearHigh 78°F26°CLow 67°F19°CPrecip 0 in0 mmCloud 19%Wind WSW 6 mph9 km/hSaturday: Mostly clear and warm, with a high of 78°F26°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 10 mph12 to 16 km/h. Saturday Night: Mostly clear, with a low around 67°F19°C. Breezy from the WSW at 4 to 7 mph7 to 11 km/h.
ClearHigh 81°F27°CLow 67°F19°CPrecip 0 in0 mmCloud 39%Wind WSW 5 mph9 km/hSunday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 10 mph11 to 16 km/h. Sunday Night: Partly cloudy, with a low around 67°F19°C. Light wind from the WSW around 4 mph7 km/h.
Partly CloudyHigh 81°F27°CLow 67°F19°CPrecip 0 in0 mmCloud 50%Wind WSW 5 mph9 km/hMonday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 10 mph11 to 16 km/h. Monday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the WSW around 4 mph6 km/h.
ClearHigh 82°F28°CLow 68°F20°CPrecip 0 in0 mmCloud 29%Wind WSW 5 mph8 km/hTuesday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the WSW at 7 to 10 mph11 to 16 km/h. Tuesday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph6 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdayAug 1280°F26°C70°F21°C0 in0 mm· —54%Partly CloudyWSW 7 mph12 km/h
ThursdayAug 1377°F25°C68°F20°C0 in0.1 mm· 1%88%CloudySW 5 mph9 km/h
FridayAug 1478°F26°C68°F20°C0.01 in0.2 mm· 3%31%ClearWSW 6 mph9 km/h
SaturdayAug 1578°F26°C67°F19°C0 in0 mm· —19%ClearWSW 6 mph9 km/h
SundayAug 1681°F27°C67°F19°C0 in0 mm· —39%ClearWSW 5 mph9 km/h
MondayAug 1781°F27°C67°F19°C0 in0 mm· —50%Partly CloudyWSW 5 mph9 km/h
TuesdayAug 1882°F28°C68°F20°C0 in0 mm· —29%ClearWSW 5 mph8 km/h
WednesdayAug 1983°F28°C68°F20°C0 in0 mm· —20%ClearSW 5 mph8 km/h
ThursdayAug 2083°F28°C68°F20°C0 in0 mm· —22%ClearSW 5 mph8 km/h
FridayAug 2183°F29°C68°F20°C0 in0 mm· —21%ClearSW 5 mph8 km/h
SaturdayAug 2284°F29°C69°F21°C0 in0 mm· —21%ClearWSW 5 mph8 km/h
SundayAug 2384°F29°C69°F21°C0.01 in0.2 mm· 2%24%ClearSW 5 mph8 km/h
MondayAug 2483°F28°C69°F21°C0 in0.1 mm· 3%27%ClearWSW 5 mph8 km/h
TuesdayAug 2582°F28°C69°F20°C0 in0.1 mm· 3%28%ClearWSW 5 mph8 km/h
WednesdayAug 2682°F28°C68°F20°C0 in0.1 mm· 2%30%ClearWSW 5 mph8 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 33.7001°N, 117.8259°W·Elevation: 45m·Timezone: America/Los_Angeles·Population: 21,428