Current Conditions

Costa Mesa, California

67°F19°C

Clear

Wind

SW 2 mph3 km/h

Humidity

90%

Cloud Cover

42%

As of Wednesday, September 23, 2026 at 4:14 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 81°F27°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h.

Night

Mostly clear, with a low around 67°F19°C. Light wind from the S around 3 mph5 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 81°F27°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 12%	Wind SW 4 mph7 km/h	Wednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h. Wednesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the S around 3 mph5 km/h.
Clear	High 79°F26°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 18%	Wind SW 4 mph7 km/h	Thursday: Mostly clear and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. Humid. Thursday Night: Mostly clear, with a low around 68°F20°C. Light wind from the SW around 3 mph4 km/h.
Clear	High 82°F28°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 31%	Wind WSW 5 mph7 km/h	Friday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. Humid. Friday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the WSW around 3 mph5 km/h.
Partly Cloudy	High 83°F29°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 73%	Wind WSW 4 mph7 km/h	Saturday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 8 mph9 to 13 km/h. Humid. Saturday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the SSW around 3 mph5 km/h.
Drizzle	High 79°F26°C	Low 71°F21°C	Precip 0.05 in1.2 mm19%	Cloud 64%	Wind SW 5 mph7 km/h	Sunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. 19% chance of drizzle throughout the day. Sunday Night: Mostly cloudy, with a low around 71°F21°C. Light wind from the WSW around 3 mph6 km/h.
Showers	High 78°F25°C	Low 68°F20°C	Precip 0.1 in2.5 mm18%	Cloud 32%	Wind W 5 mph8 km/h	Monday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. 18% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the W around 3 mph6 km/h. 16% chance of drizzle throughout the night.
Clear	High 82°F28°C	Low 67°F19°C	Precip 0.04 in1 mm9%	Cloud 16%	Wind W 4 mph7 km/h	Tuesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 9 mph9 to 14 km/h. Tuesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the N around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	81°F27°C	67°F19°C	0 in0 mm· —	12%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 9 mph9 to 15 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the S around 3 mph5 km/h.
	ThursdaySep 24	79°F26°C	68°F20°C	0 in0 mm· —	18%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. Humid. NightMostly clear, with a low around 68°F20°C. Light wind from the SW around 3 mph4 km/h.
	FridaySep 25	82°F28°C	69°F21°C	0 in0 mm· —	31%	Clear	WSW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. Humid. NightPartly cloudy, with a low around 69°F21°C. Light wind from the WSW around 3 mph5 km/h.
	SaturdaySep 26	83°F29°C	69°F21°C	0 in0 mm· —	73%	Partly Cloudy	WSW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 8 mph9 to 13 km/h. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the SSW around 3 mph5 km/h.
	SundaySep 27	79°F26°C	71°F21°C	0.05 in1.2 mm· 19%	64%	Drizzle	SW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 71°F21°C. Light wind from the WSW around 3 mph6 km/h.
	MondaySep 28	78°F25°C	68°F20°C	0.1 in2.5 mm· 18%	32%	Showers	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. 18% chance of showers throughout the day. NightPartly cloudy, with a low around 68°F20°C. Light wind from the W around 3 mph6 km/h. 16% chance of drizzle throughout the night.
	TuesdaySep 29	82°F28°C	67°F19°C	0.04 in1 mm· 9%	16%	Clear	W 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 9 mph9 to 14 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the N around 3 mph5 km/h.
	WednesdaySep 30	86°F30°C	68°F20°C	0.02 in0.6 mm· 5%	20%	Clear	WSW 5 mph7 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 71°F21°C. Breezy from the WSW at 6 to 8 mph9 to 14 km/h. NightMostly clear, with a low around 68°F20°C. Light wind from the ENE around 3 mph5 km/h.
	ThursdayOct 1	86°F30°C	69°F21°C	0.03 in0.8 mm· 5%	31%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 86°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 69°F21°C. Light wind from the S around 3 mph5 km/h.
	FridayOct 2	84°F29°C	70°F21°C	0.02 in0.4 mm· 3%	31%	Clear	SW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 84°F29°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 70°F21°C. Light wind from the SSW around 3 mph5 km/h.
	SaturdayOct 3	85°F29°C	69°F21°C	0.01 in0.2 mm· 2%	22%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 8 mph9 to 12 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h.
	SundayOct 4	85°F29°C	70°F21°C	0.01 in0.2 mm· 2%	22%	Clear	SW 5 mph7 km/h
DayMostly clear 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. NightMostly clear, with a low around 70°F21°C. Light wind from the S around 3 mph5 km/h.
	MondayOct 5	85°F29°C	69°F21°C	0.02 in0.6 mm· 3%	19%	Clear	WSW 5 mph7 km/h
DayMostly clear 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. NightMostly clear, with a low around 69°F21°C. Light wind from the SSW around 3 mph5 km/h.
	TuesdayOct 6	86°F30°C	70°F21°C	0.03 in0.7 mm· 4%	20%	Clear	WSW 5 mph7 km/h
DayMostly clear and hot, 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 70°F21°C. Light wind from the NNE around 3 mph6 km/h.
	WednesdayOct 7	86°F30°C	71°F21°C	0.02 in0.6 mm· 5%	19%	Clear	SW 5 mph8 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 mph10 to 13 km/h. NightMostly clear, with a low around 71°F21°C. Light wind from the SSE around 4 mph6 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