Current Conditions

Rancho Cucamonga, California

65°F18°C

Clear

Wind

S 2 mph3 km/h

Humidity

51%

Cloud Cover

As of Wednesday, September 2, 2026 at 9:28 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air.

Night

Mostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 82°F28°C	Low 60°F16°C	Precip 0 in0 mm—	Cloud 1%	Wind SSW 4 mph7 km/h	Wednesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.
Clear	High 81°F27°C	Low 60°F16°C	Precip 0 in0 mm—	Cloud 2%	Wind SSW 4 mph6 km/h	Thursday: Mostly clear and warm, with a high of 81°F27°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. Thursday Night: Mostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.
Clear	High 82°F28°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 9%	Wind SSW 4 mph6 km/h	Friday: Mostly clear and warm, with a high of 82°F28°C and morning low of 64°F18°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Dry air. Friday Night: Mostly clear, with a low around 61°F16°C. Light wind from the SSW around 2 mph3 km/h.
Clear	High 85°F29°C	Low 61°F16°C	Precip 0.01 in0.2 mm6%	Cloud 10%	Wind SSW 3 mph5 km/h	Saturday: Mostly clear and warm, with a high of 85°F29°C and morning low of 67°F20°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. Saturday Night: Mostly clear, with a low around 61°F16°C. Light wind from the SW around 2 mph3 km/h.
Showers	High 81°F27°C	Low 67°F19°C	Precip 0.15 in3.9 mm32%	Cloud 27%	Wind SSW 3 mph5 km/h	Sunday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the SSW around 5 mph8 km/h. 32% chance of showers throughout the day. Sunday Night: Mostly clear, with a low around 67°F19°C. Light wind from the SW around 2 mph3 km/h. 27% chance of drizzle throughout the night.
Clear	High 85°F30°C	Low 62°F17°C	Precip 0 in0.1 mm2%	Cloud 14%	Wind SW 3 mph5 km/h	Monday: Mostly clear and warm, with a high of 85°F30°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. Dry air. Monday Night: Mostly clear, with a low around 62°F17°C. Light wind from the SW around 2 mph3 km/h.
Clear	High 87°F31°C	Low 63°F17°C	Precip 0.04 in0.9 mm5%	Cloud 22%	Wind SW 3 mph5 km/h	Tuesday: Mostly clear and hot, with a high of 87°F31°C and morning low of 67°F20°C. Light wind from the SSW around 4 mph6 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 63°F17°C. Light wind from the SW around 2 mph3 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	82°F28°C	60°F16°C	0 in0 mm· —	1%	Clear	SSW 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. NightMostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.
	ThursdaySep 3	81°F27°C	60°F16°C	0 in0 mm· —	2%	Clear	SSW 4 mph6 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. NightMostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.
	FridaySep 4	82°F28°C	61°F16°C	0 in0 mm· —	9%	Clear	SSW 4 mph6 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 64°F18°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Dry air. NightMostly clear, with a low around 61°F16°C. Light wind from the SSW around 2 mph3 km/h.
	SaturdaySep 5	85°F29°C	61°F16°C	0.01 in0.2 mm· 6%	10%	Clear	SSW 3 mph5 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 67°F20°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. NightMostly clear, with a low around 61°F16°C. Light wind from the SW around 2 mph3 km/h.
	SundaySep 6	81°F27°C	67°F19°C	0.15 in3.9 mm· 32%	27%	Showers	SSW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the SSW around 5 mph8 km/h. 32% chance of showers throughout the day. NightMostly clear, with a low around 67°F19°C. Light wind from the SW around 2 mph3 km/h. 27% chance of drizzle throughout the night.
	MondaySep 7	85°F30°C	62°F17°C	0 in0.1 mm· 2%	14%	Clear	SW 3 mph5 km/h
DayMostly clear and warm, with a high of 85°F30°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 62°F17°C. Light wind from the SW around 2 mph3 km/h.
	TuesdaySep 8	87°F31°C	63°F17°C	0.04 in0.9 mm· 5%	22%	Clear	SW 3 mph5 km/h
DayMostly clear and hot, with a high of 87°F31°C and morning low of 67°F20°C. Light wind from the SSW around 4 mph6 km/h. Dry air. NightMostly clear, with a low around 63°F17°C. Light wind from the SW around 2 mph3 km/h.
	WednesdaySep 9	87°F31°C	65°F18°C	0.02 in0.6 mm· 7%	24%	Clear	SSW 3 mph5 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 70°F21°C. Light wind from the SSW around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 65°F18°C. Light wind from the SW around 2 mph3 km/h.
	ThursdaySep 10	87°F30°C	66°F19°C	0.02 in0.5 mm· 5%	21%	Clear	SSW 3 mph5 km/h
DayMostly clear and hot, with a high of 87°F30°C and morning low of 70°F21°C. Light wind from the SSW around 4 mph7 km/h. NightMostly clear, with a low around 66°F19°C. Light wind from the SW around 2 mph3 km/h.
	FridaySep 11	86°F30°C	65°F18°C	0.06 in1.5 mm· 7%	24%	Clear	SSW 3 mph5 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the SSW around 4 mph7 km/h. NightPartly cloudy, with a low around 65°F18°C. Light wind from the SSW around 2 mph3 km/h.
	SaturdaySep 12	84°F29°C	66°F19°C	0.13 in3.2 mm· 13%	36%	Showers	SSW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 69°F21°C. Light wind from the SSW around 5 mph7 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the SW around 2 mph4 km/h. 12% chance of showers throughout the night.
	SundaySep 13	83°F28°C	66°F19°C	0.11 in2.7 mm· 13%	40%	Showers	SW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the SW around 2 mph4 km/h. 11% chance of showers throughout the night.
	MondaySep 14	84°F29°C	66°F19°C	0.08 in2 mm· 14%	35%	Drizzle	SSW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 69°F20°C. Light wind from the SSW around 4 mph7 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the SW around 2 mph4 km/h. 14% chance of drizzle overnight.
	TuesdaySep 15	84°F29°C	65°F18°C	0.07 in1.9 mm· 13%	29%	Drizzle	SW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 65°F18°C. Light wind from the SW around 2 mph3 km/h. 11% chance of drizzle throughout the night.
	WednesdaySep 16	85°F30°C	65°F19°C	0.03 in0.8 mm· 7%	23%	Clear	SW 3 mph5 km/h
DayMostly clear and warm, with a high of 85°F30°C and morning low of 70°F21°C. Light wind from the SW around 4 mph7 km/h. NightMostly clear, with a low around 65°F19°C. Light wind from the SW around 2 mph3 km/h.

Nearby Cities

Upland3 mi5 km Ontario4 mi7 km Montclair6 mi9 km Claremont7 mi12 km Chino9 mi14 km Jurupa Valley9 mi15 km

About This Forecast

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Coordinates: 34.1064°N, 117.5931°W·Elevation: 368m·Timezone: America/Los_Angeles·Population: 175,236