Current Conditions

Rancho Santa Margarita, California

90°F32°C

Clear

Wind

WNW 9 mph14 km/h

Humidity

45%

Cloud Cover

23%

As of Tuesday, September 8, 2026 at 4:16 PM PDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 91°F33°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. Humid.

Night

Mostly clear, with a low around 82°F28°C. Light wind from the NNW around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 91°F33°CFeels 94°F34°C	Low 82°F28°CFeels 85°F29°C	Precip 0 in0.1 mm4%	Cloud 33%	Wind NW 6 mph9 km/h	Tuesday: Partly cloudy and hot, with a high of 91°F33°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. Humid. Tuesday Night: Mostly clear, with a low around 82°F28°C. Light wind from the NNW around 4 mph6 km/h.
Hot	High 96°F36°C	Low 77°F25°C	Precip 0 in0.1 mm9%	Cloud 26%	Wind W 4 mph7 km/h	Wednesday: Mostly clear and hot, with a high of 96°F36°C and morning low of 81°F27°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the ESE around 3 mph6 km/h.
Clear	High 90°F32°CFeels 93°F34°C	Low 77°F25°C	Precip 0 in0 mm—	Cloud 19%	Wind S 5 mph7 km/h	Thursday: Mostly clear and hot, with a high of 90°F32°C and morning low of 80°F27°C. Breezy from the SSW at 6 to 7 mph9 to 12 km/h. Humid. Thursday Night: Mostly clear, with a low around 77°F25°C. Light wind from the SSE around 4 mph6 km/h.
Clear	High 86°F30°C	Low 74°F23°C	Precip 0 in0 mm—	Cloud 6%	Wind S 4 mph7 km/h	Friday: Mostly clear and warm, with a high of 86°F30°C and morning low of 77°F25°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h. Humid. Friday Night: Mostly clear, with a low around 74°F23°C. Light wind from the S around 3 mph5 km/h.
Clear	High 83°F28°CFeels 86°F30°C	Low 72°F22°C	Precip 0 in0 mm—	Cloud 15%	Wind SW 4 mph6 km/h	Saturday: Mostly clear and warm, with a high of 83°F28°C and morning low of 74°F23°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Humid. Saturday Night: Mostly clear, with a low around 72°F22°C. Light wind from the SSW around 3 mph5 km/h.
Clear	High 83°F29°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 19%	Wind SW 4 mph6 km/h	Sunday: Mostly clear and warm, with a high of 83°F29°C and morning low of 72°F22°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Humid. Sunday Night: Mostly clear, with a low around 69°F21°C. Light wind from the SSW around 3 mph4 km/h.
Clear	High 83°F28°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 17%	Wind SSW 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Monday Night: Mostly clear, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	91°F33°C Feels 94°F34°C	82°F28°C Feels 85°F29°C	0 in0.1 mm· 4%	33%	Clear	NW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 91°F33°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. Humid. NightMostly clear, with a low around 82°F28°C. Light wind from the NNW around 4 mph6 km/h.
	WednesdaySep 9	96°F36°C	77°F25°C	0 in0.1 mm· 9%	26%	Hot	W 4 mph7 km/h
DayMostly clear and hot, with a high of 96°F36°C and morning low of 81°F27°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the ESE around 3 mph6 km/h.
	ThursdaySep 10	90°F32°C Feels 93°F34°C	77°F25°C	0 in0 mm· —	19%	Clear	S 5 mph7 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 80°F27°C. Breezy from the SSW at 6 to 7 mph9 to 12 km/h. Humid. NightMostly clear, with a low around 77°F25°C. Light wind from the SSE around 4 mph6 km/h.
	FridaySep 11	86°F30°C	74°F23°C	0 in0 mm· —	6%	Clear	S 4 mph7 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 77°F25°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h. Humid. NightMostly clear, with a low around 74°F23°C. Light wind from the S around 3 mph5 km/h.
	SaturdaySep 12	83°F28°C Feels 86°F30°C	72°F22°C	0 in0 mm· —	15%	Clear	SW 4 mph6 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 74°F23°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Humid. NightMostly clear, with a low around 72°F22°C. Light wind from the SSW around 3 mph5 km/h.
	SundaySep 13	83°F29°C	69°F21°C	0 in0 mm· —	19%	Clear	SW 4 mph6 km/h
DayMostly clear and warm, with a high of 83°F29°C and morning low of 72°F22°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Humid. NightMostly clear, with a low around 69°F21°C. Light wind from the SSW around 3 mph4 km/h.
	MondaySep 14	83°F28°C	69°F21°C	0 in0 mm· —	17%	Clear	SSW 4 mph7 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h.
	TuesdaySep 15	82°F28°C	68°F20°C	0 in0 mm· —	20%	Clear	SSW 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 71°F22°C. Light wind from the SSW around 5 mph8 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the SSW around 3 mph5 km/h.
	WednesdaySep 16	81°F27°C	68°F20°C	0.01 in0.2 mm· 2%	26%	Clear	SW 4 mph6 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph4 km/h.
	ThursdaySep 17	81°F27°C	67°F20°C	0.01 in0.2 mm· 2%	27%	Clear	WSW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the WSW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 67°F20°C. Light wind from the WSW around 3 mph5 km/h.
	FridaySep 18	83°F28°C	67°F20°C	0.01 in0.2 mm· 1%	30%	Clear	WSW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the WSW at 5 to 8 mph8 to 12 km/h. NightPartly cloudy, with a low around 67°F20°C. Light wind from the WSW around 3 mph4 km/h.
	SaturdaySep 19	84°F29°C	68°F20°C	0 in0 mm· —	30%	Clear	WSW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph4 km/h.
	SundaySep 20	84°F29°C	68°F20°C	0 in0.1 mm· 2%	36%	Clear	WSW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 71°F21°C. Breezy from the WSW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph4 km/h.
	MondaySep 21	82°F28°C	68°F20°C	0.02 in0.6 mm· 4%	36%	Clear	SW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
	TuesdaySep 22	83°F28°C	68°F20°C	0.02 in0.5 mm· 5%	36%	Clear	SW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the WSW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW 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