Current Conditions

Costa Mesa, California

70°F21°C

Clear

Wind

W 7 mph11 km/h

Humidity

67%

Cloud Cover

As of Wednesday, September 2, 2026 at 8:54 PM PDT

Today's Outlook

Night

Mostly clear, with a low around 65°F19°C. Light wind from the SW around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 77°F25°C	Low 65°F19°C	Precip 0 in0 mm—	Cloud 17%	Wind SW 5 mph9 km/h	Thursday: Mostly clear and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the SW at 7 to 10 mph11 to 15 km/h. Thursday Night: Mostly clear, with a low around 65°F19°C. Light wind from the SW around 4 mph6 km/h.
Clear	High 77°F25°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 18%	Wind SW 5 mph8 km/h	Friday: Mostly clear and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the SW at 6 to 8 mph10 to 14 km/h. Friday Night: Mostly clear, with a low around 66°F19°C. Light wind from the SW around 3 mph5 km/h.
Clear	High 82°F28°C	Low 65°F19°C	Precip 0.01 in0.2 mm5%	Cloud 15%	Wind WSW 4 mph6 km/h	Saturday: Mostly clear and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the SW at 5 to 8 mph8 to 12 km/h. Saturday Night: Mostly clear, with a low around 65°F19°C. Light wind from the WSW around 3 mph5 km/h.
Showers	High 82°F28°C	Low 70°F21°C	Precip 0.08 in2.1 mm26%	Cloud 25%	Wind W 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. 26% chance of showers throughout the day. Sunday Night: Mostly clear, with a low around 70°F21°C. Light wind from the W around 4 mph6 km/h. 19% chance of drizzle before dawn.
Clear	High 83°F28°C	Low 68°F20°C	Precip 0 in0.1 mm2%	Cloud 17%	Wind WSW 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h. Monday Night: Mostly clear, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
Clear	High 84°F29°C	Low 68°F20°C	Precip 0 in0.1 mm3%	Cloud 26%	Wind WSW 4 mph7 km/h	Tuesday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 71°F21°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h. Tuesday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
Clear	High 85°F29°C	Low 69°F21°C	Precip 0.01 in0.2 mm4%	Cloud 24%	Wind WSW 5 mph8 km/h	Wednesday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. Wednesday Night: Mostly clear, with a low around 69°F21°C. Light wind from the SW around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	77°F25°C	65°F19°C	0 in0 mm· —	17%	Clear	SW 5 mph9 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the SW at 7 to 10 mph11 to 15 km/h. NightMostly clear, with a low around 65°F19°C. Light wind from the SW around 4 mph6 km/h.
	FridaySep 4	77°F25°C	66°F19°C	0 in0 mm· —	18%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the SW at 6 to 8 mph10 to 14 km/h. NightMostly clear, with a low around 66°F19°C. Light wind from the SW around 3 mph5 km/h.
	SaturdaySep 5	82°F28°C	65°F19°C	0.01 in0.2 mm· 5%	15%	Clear	WSW 4 mph6 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the SW at 5 to 8 mph8 to 12 km/h. NightMostly clear, with a low around 65°F19°C. Light wind from the WSW around 3 mph5 km/h.
	SundaySep 6	82°F28°C	70°F21°C	0.08 in2.1 mm· 26%	25%	Showers	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. 26% chance of showers throughout the day. NightMostly clear, with a low around 70°F21°C. Light wind from the W around 4 mph6 km/h. 19% chance of drizzle before dawn.
	MondaySep 7	83°F28°C	68°F20°C	0 in0.1 mm· 2%	17%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
	TuesdaySep 8	84°F29°C	68°F20°C	0 in0.1 mm· 3%	26%	Clear	WSW 4 mph7 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 6 to 9 mph9 to 15 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
	WednesdaySep 9	85°F29°C	69°F21°C	0.01 in0.2 mm· 4%	24%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the SW around 3 mph5 km/h.
	ThursdaySep 10	84°F29°C	70°F21°C	0.01 in0.2 mm· 4%	22%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 73°F23°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 3 mph5 km/h.
	FridaySep 11	83°F28°C	70°F21°C	0.02 in0.4 mm· 4%	21%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SW around 3 mph5 km/h.
	SaturdaySep 12	82°F28°C	69°F21°C	0.06 in1.6 mm· 6%	30%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the SW around 4 mph6 km/h.
	SundaySep 13	81°F27°C	69°F21°C	0.03 in0.8 mm· 3%	34%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the SW at 6 to 9 mph10 to 15 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the SW around 4 mph6 km/h.
	MondaySep 14	81°F27°C	69°F20°C	0.02 in0.6 mm· 4%	31%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 69°F20°C. Light wind from the SSW around 4 mph6 km/h.
	TuesdaySep 15	82°F28°C	69°F20°C	0.01 in0.2 mm· 5%	30%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the SW at 6 to 9 mph10 to 15 km/h. NightPartly cloudy, with a low around 69°F20°C. Light wind from the SW around 3 mph5 km/h.
	WednesdaySep 16	83°F28°C	69°F20°C	0.01 in0.2 mm· 3%	25%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. NightPartly cloudy, with a low around 69°F20°C. Light wind from the WSW around 3 mph5 km/h.
	ThursdaySep 17	83°F28°C	69°F21°C	0.02 in0.4 mm· 5%	28%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the SSW around 3 mph4 km/h.

Nearby Cities

Newport Beach2 mi3 km UC Irvine4 mi7 km Huntington Beach5 mi8 km Fountain Valley5 mi8 km Irvine6 mi9 km Tustin Legacy7 mi11 km

About This Forecast

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Coordinates: 33.6411°N, 117.9187°W·Elevation: 30m·Timezone: America/Los_Angeles·Population: 113,204