Current Conditions

Fullerton, California

79°F26°C

Cloudy

Wind

SSW 9 mph14 km/h

Humidity

55%

Cloud Cover

89%

As of Thursday, August 13, 2026 at 12:40 PM PDT

Today's Outlook

Day

Overcast and warm, with a high of 79°F26°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h.

Night

Mostly cloudy, with a low around 69°F21°C. Light wind from the SW around 5 mph8 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Cloudy	High 79°F26°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 84%	Wind SW 6 mph10 km/h	Thursday: Overcast and warm, with a high of 79°F26°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. Thursday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the SW around 5 mph8 km/h.
Clear	High 80°F27°C	Low 68°F20°C	Precip 0 in0.1 mm3%	Cloud 28%	Wind SW 5 mph8 km/h	Friday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the SW at 6 to 9 mph10 to 15 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 82°F28°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 20%	Wind WSW 5 mph8 km/h	Saturday: Mostly clear and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. Saturday Night: Mostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph6 km/h.
Clear	High 84°F29°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 19%	Wind WSW 5 mph8 km/h	Sunday: Mostly clear and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the WSW at 7 to 10 mph11 to 15 km/h. Sunday Night: Mostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph6 km/h.
Clear	High 86°F30°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 39%	Wind WSW 5 mph8 km/h	Monday: Partly cloudy and hot, with a high of 86°F30°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. Monday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
Clear	High 87°F31°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 31%	Wind SW 5 mph7 km/h	Tuesday: Partly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. Tuesday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
Clear	High 88°F31°C	Low 69°F20°C	Precip 0 in0 mm—	Cloud 17%	Wind SW 5 mph7 km/h	Wednesday: Mostly clear and hot, with a high of 88°F31°C and morning low of 73°F23°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. Wednesday Night: Mostly clear, with a low around 69°F20°C. Light wind from the SSW around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	79°F26°C	69°F21°C	0 in0 mm· —	84%	Cloudy	SW 6 mph10 km/h
DayOvercast and warm, with a high of 79°F26°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. NightMostly cloudy, with a low around 69°F21°C. Light wind from the SW around 5 mph8 km/h.
	FridayAug 14	80°F27°C	68°F20°C	0 in0.1 mm· 3%	28%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the SW at 6 to 9 mph10 to 15 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph6 km/h.
	SaturdayAug 15	82°F28°C	67°F19°C	0 in0 mm· —	20%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph6 km/h.
	SundayAug 16	84°F29°C	67°F19°C	0 in0 mm· —	19%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the WSW at 7 to 10 mph11 to 15 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph6 km/h.
	MondayAug 17	86°F30°C	68°F20°C	0 in0 mm· —	39%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 86°F30°C and morning low of 71°F22°C. Breezy from the WSW at 6 to 9 mph10 to 15 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW around 3 mph5 km/h.
	TuesdayAug 18	87°F31°C	68°F20°C	0 in0 mm· —	31%	Clear	SW 5 mph7 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°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 SW around 3 mph5 km/h.
	WednesdayAug 19	88°F31°C	69°F20°C	0 in0 mm· —	17%	Clear	SW 5 mph7 km/h
DayMostly clear and hot, with a high of 88°F31°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 69°F20°C. Light wind from the SSW around 3 mph5 km/h.
	ThursdayAug 20	87°F31°C	69°F21°C	0 in0 mm· —	18%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 87°F31°C and morning low of 74°F23°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the SSW around 3 mph5 km/h.
	FridayAug 21	88°F31°C	70°F21°C	0 in0 mm· —	21%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 88°F31°C and morning low of 73°F23°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 3 mph5 km/h.
	SaturdayAug 22	89°F32°C	70°F21°C	0 in0 mm· —	21%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 89°F32°C and morning low of 74°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.
	SundayAug 23	89°F32°C	70°F21°C	0 in0 mm· —	22%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 89°F32°C and morning low of 74°F24°C. Breezy from the SW at 6 to 9 mph9 to 14 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 3 mph4 km/h.
	MondayAug 24	89°F31°C	70°F21°C	0 in0 mm· —	21%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 89°F31°C and morning low of 75°F24°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.
	TuesdayAug 25	88°F31°C	70°F21°C	0 in0 mm· —	24%	Clear	SW 4 mph7 km/h
DayMostly clear and hot, with a high of 88°F31°C and morning low of 74°F24°C. Breezy from the SW at 6 to 9 mph9 to 14 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 3 mph4 km/h.
	WednesdayAug 26	88°F31°C	70°F21°C	0 in0.1 mm· 2%	29%	Clear	SW 4 mph7 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Breezy from the SW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 3 mph5 km/h.
	ThursdayAug 27	88°F31°C	70°F21°C	0.01 in0.2 mm· 4%	31%	Clear	SW 4 mph7 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Breezy from the SW at 6 to 9 mph9 to 14 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 3 mph5 km/h.

Nearby Cities

Anaheim2 mi4 km Placentia3 mi5 km Brea4 mi6 km Buena Park4 mi7 km La Habra4 mi7 km La Mirada6 mi10 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.

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Coordinates: 33.8703°N, 117.9253°W·Elevation: 50m·Timezone: America/Los_Angeles·Population: 140,847