Current Conditions

Rancho Santa Margarita, California

79°F26°C

Partly Cloudy

Wind

WSW 9 mph14 km/h

Humidity

58%

Cloud Cover

31%

As of Wednesday, August 12, 2026 at 3:43 PM PDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 82°F28°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h.

Night

Overcast, with a low around 70°F21°C. Light wind from the SW around 5 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 82°F28°C	Low 70°F21°C	Precip 0 in0 mm—	Cloud 57%	Wind WSW 6 mph10 km/h	Wednesday: Partly cloudy and warm, with a high of 82°F28°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h. Wednesday Night: Overcast, with a low around 70°F21°C. Light wind from the SW around 5 mph7 km/h.
Cloudy	High 79°F26°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 90%	Wind SW 5 mph8 km/h	Thursday: Overcast and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. Thursday Night: Overcast, with a low around 68°F20°C. Light wind from the SW around 4 mph6 km/h.
Clear	High 80°F27°C	Low 68°F20°C	Precip 0 in0.1 mm2%	Cloud 29%	Wind WSW 5 mph8 km/h	Friday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 69°F21°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. Friday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph6 km/h.
Clear	High 81°F27°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 18%	Wind WSW 5 mph8 km/h	Saturday: Mostly clear and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. Saturday Night: Mostly clear, with a low around 66°F19°C. Light wind from the W around 4 mph6 km/h.
Partly Cloudy	High 84°F29°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 41%	Wind WSW 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. Sunday Night: Partly cloudy, with a low around 66°F19°C. Light wind from the W around 4 mph6 km/h.
Partly Cloudy	High 84°F29°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 51%	Wind W 5 mph8 km/h	Monday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the W at 6 to 9 mph10 to 14 km/h. Monday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the W around 4 mph6 km/h.
Clear	High 85°F30°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 26%	Wind WSW 5 mph7 km/h	Tuesday: Mostly clear and warm, with a high of 85°F30°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph9 to 14 km/h. Tuesday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdayAug 12	82°F28°C	70°F21°C	0 in0 mm· —	57%	Partly Cloudy	WSW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h. NightOvercast, with a low around 70°F21°C. Light wind from the SW around 5 mph7 km/h.
	ThursdayAug 13	79°F26°C	68°F20°C	0 in0 mm· —	90%	Cloudy	SW 5 mph8 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. NightOvercast, with a low around 68°F20°C. Light wind from the SW around 4 mph6 km/h.
	FridayAug 14	80°F27°C	68°F20°C	0 in0.1 mm· 2%	29%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 69°F21°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph6 km/h.
	SaturdayAug 15	81°F27°C	66°F19°C	0 in0 mm· —	18%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. NightMostly clear, with a low around 66°F19°C. Light wind from the W around 4 mph6 km/h.
	SundayAug 16	84°F29°C	66°F19°C	0 in0 mm· —	41%	Partly Cloudy	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 66°F19°C. Light wind from the W around 4 mph6 km/h.
	MondayAug 17	84°F29°C	67°F19°C	0 in0 mm· —	51%	Partly Cloudy	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the W at 6 to 9 mph10 to 14 km/h. NightMostly cloudy, with a low around 67°F19°C. Light wind from the W around 4 mph6 km/h.
	TuesdayAug 18	85°F30°C	68°F20°C	0 in0 mm· —	26%	Clear	WSW 5 mph7 km/h
DayMostly clear and warm, with a high of 85°F30°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph9 to 14 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
	WednesdayAug 19	86°F30°C	68°F20°C	0 in0 mm· —	19%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
	ThursdayAug 20	85°F30°C	68°F20°C	0 in0.1 mm· 2%	21%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 85°F30°C and morning low of 71°F22°C. Breezy from the SW at 5 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
	FridayAug 21	86°F30°C	68°F20°C	0 in0.1 mm· 2%	23%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 72°F22°C. Breezy from the WSW at 5 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
	SaturdayAug 22	87°F30°C	69°F21°C	0 in0 mm· —	22%	Clear	WSW 4 mph7 km/h
DayMostly clear and hot, with a high of 87°F30°C and morning low of 73°F23°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the WSW around 3 mph5 km/h.
	SundayAug 23	87°F30°C	69°F21°C	0.01 in0.2 mm· 1%	24%	Clear	WSW 4 mph7 km/h
DayMostly clear and hot, with a high of 87°F30°C and morning low of 73°F23°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the WSW around 3 mph5 km/h.
	MondayAug 24	86°F30°C	69°F21°C	0 in0.1 mm· 2%	25%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the WSW around 3 mph5 km/h.
	TuesdayAug 25	85°F30°C	69°F20°C	0.01 in0.2 mm· 3%	26%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 85°F30°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 69°F20°C. Light wind from the WSW around 3 mph5 km/h.
	WednesdayAug 26	85°F29°C	68°F20°C	0 in0 mm· —	27%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.

Nearby Cities

Mission Viejo5 mi8 km Lake Forest5 mi8 km Ladera Ranch5 mi8 km Laguna Hills7 mi11 km Laguna Woods7 mi12 km Aliso Viejo9 mi14 km

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

Pattern	Example	Description
/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=11.5	Find 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: 33.6409°N, 117.6031°W·Elevation: 289m·Timezone: America/Los_Angeles·Population: 49,324