Current Conditions

Walnut, California

76°F24°C

Clear

Wind

S 2 mph3 km/h

Humidity

67%

Cloud Cover

As of Thursday, July 23, 2026 at 11:13 PM PDT

Today's Outlook

Night

Mostly clear, with a low around 71°F22°C. Light wind from the SSW around 2 mph4 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Clear	High 91°F33°C	Low 71°F22°C	Precip 0 in0 mm—	Cloud 23%	Wind SSW 4 mph6 km/h	Friday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly clear, with a low around 71°F22°C. Light wind from the SSW around 2 mph4 km/h.
SaturdayJul 25	Clear	High 91°F33°C	Low 71°F21°C	Precip 0 in0 mm—	Cloud 20%	Wind SW 3 mph6 km/h	Saturday: Mostly clear and hot, with a high of 91°F33°C and morning low of 77°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Saturday Night: Partly cloudy, with a low around 71°F21°C. Light wind from the SW around 2 mph3 km/h.
SundayJul 26	Clear	High 90°F32°C	Low 71°F22°C	Precip 0 in0 mm—	Cloud 32%	Wind SW 3 mph6 km/h	Sunday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 76°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Sunday Night: Partly cloudy, with a low around 71°F22°C. Light wind from the SSW around 2 mph3 km/h.
MondayJul 27	Clear	High 90°F32°C	Low 70°F21°C	Precip 0 in0 mm—	Cloud 22%	Wind SSW 4 mph6 km/h	Monday: Mostly clear and hot, with a high of 90°F32°C and morning low of 76°F24°C. Breezy from the SW at 5 to 7 mph9 to 12 km/h. Monday Night: Mostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph3 km/h.
TuesdayJul 28	Clear	High 89°F32°C	Low 70°F21°C	Precip 0 in0 mm—	Cloud 14%	Wind SSW 4 mph6 km/h	Tuesday: Mostly clear and hot, with a high of 89°F32°C and morning low of 76°F24°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Tuesday Night: Mostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph3 km/h.
WednesdayJul 29	Clear	High 90°F32°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 14%	Wind SSW 4 mph6 km/h	Wednesday: Mostly clear and hot, with a high of 90°F32°C and morning low of 75°F24°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Wednesday Night: Mostly clear, with a low around 69°F21°C. Light wind from the SSW around 2 mph3 km/h.
ThursdayJul 30	Clear	High 92°F33°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 16%	Wind SW 4 mph6 km/h	Thursday: Mostly clear and hot, with a high of 92°F33°C and morning low of 75°F24°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. Thursday Night: Mostly clear, with a low around 69°F21°C. Light wind from the SSW around 2 mph3 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	91°F33°C	71°F22°C	0 in0 mm· —	23%	Clear	SSW 4 mph6 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 71°F22°C. Light wind from the SSW around 2 mph4 km/h.
	SaturdayJul 25	91°F33°C	71°F21°C	0 in0 mm· —	20%	Clear	SW 3 mph6 km/h
DayMostly clear and hot, with a high of 91°F33°C and morning low of 77°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 71°F21°C. Light wind from the SW around 2 mph3 km/h.
	SundayJul 26	90°F32°C	71°F22°C	0 in0 mm· —	32%	Clear	SW 3 mph6 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 76°F25°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 71°F22°C. Light wind from the SSW around 2 mph3 km/h.
	MondayJul 27	90°F32°C	70°F21°C	0 in0 mm· —	22%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 76°F24°C. Breezy from the SW at 5 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph3 km/h.
	TuesdayJul 28	89°F32°C	70°F21°C	0 in0 mm· —	14%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 89°F32°C and morning low of 76°F24°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph3 km/h.
	WednesdayJul 29	90°F32°C	69°F21°C	0 in0 mm· —	14%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 75°F24°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the SSW around 2 mph3 km/h.
	ThursdayJul 30	92°F33°C	69°F21°C	0 in0 mm· —	16%	Clear	SW 4 mph6 km/h
DayMostly clear and hot, with a high of 92°F33°C and morning low of 75°F24°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the SSW around 2 mph3 km/h.
	FridayJul 31	94°F34°C	70°F21°C	0 in0 mm· —	8%	Clear	SW 4 mph6 km/h
DayMostly clear and hot, with a high of 94°F34°C and morning low of 76°F24°C. Breezy from the SW at 5 to 8 mph8 to 12 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph3 km/h.
	SaturdayAug 1	94°F34°C	71°F22°C	0 in0 mm· —	17%	Clear	SW 4 mph6 km/h
DayMostly clear and hot, with a high of 94°F34°C and morning low of 77°F25°C. Breezy from the SW at 5 to 8 mph9 to 12 km/h. NightMostly clear, with a low around 71°F22°C. Light wind from the SSW around 2 mph3 km/h.
	SundayAug 2	93°F34°C	71°F22°C	0 in0 mm· —	16%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 93°F34°C and morning low of 77°F25°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. NightMostly clear, with a low around 71°F22°C. Light wind from the SSW around 2 mph4 km/h.
	MondayAug 3	91°F33°C	70°F21°C	0 in0 mm· —	21%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 91°F33°C and morning low of 75°F24°C. Breezy from the SSW at 5 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 70°F21°C. Light wind from the SSW around 2 mph4 km/h.
	TuesdayAug 4	90°F32°C	69°F21°C	0 in0 mm· —	24%	Clear	SSW 4 mph6 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 75°F24°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the SSW around 2 mph4 km/h.
	WednesdayAug 5	90°F32°C	70°F21°C	0 in0 mm· —	33%	Clear	SW 4 mph6 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 74°F23°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 2 mph4 km/h.
	ThursdayAug 6	90°F32°C	70°F21°C	0 in0.1 mm· 2%	29%	Clear	SW 4 mph6 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 75°F24°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 2 mph4 km/h.
	FridayAug 7	89°F32°C	70°F21°C	0 in0.1 mm· 3%	27%	Clear	SW 4 mph7 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 74°F23°C. Breezy from the SW at 5 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SW around 1 mph2 km/h.

Nearby Cities

South San Jose Hills2 mi4 km Diamond Bar3 mi5 km Rowland Heights4 mi6 km Valinda5 mi8 km La Puente5 mi8 km Covina5 mi8 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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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

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Coordinates: 34.0203°N, 117.8653°W·Elevation: 171m·Timezone: America/Los_Angeles·Population: 30,237