ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

6:53 PM PST NOV 9, 2026
Clear
75°F
Feels Like: 75°F
Dewpoint: 45°F
Rel. Hum.: 34%
Visibility: 10 miles
Wind: WSW at 5 mph
Pressure: 30.03 inches
Last 72 hours

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows around 56 in wind sheltered areas to 57 to 61 in warmer locations. Areas of winds east to 10 mph.
TUESDAY
Mostly sunny. Highs 81 to 87. Areas of winds east to 10 mph becoming north in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 54 to 57 in wind sheltered areas to 56 to 61 in warmer locations. Areas of winds east to 10 mph.
VETERANS DAY
Sunny. Highs 82 to 88. Areas of winds east to 10 mph becoming west in the afternoon.
WEDNESDAY NIGHT
Clear. Lows around 54 in wind sheltered areas to 55 to 60 in warmer locations. Areas of winds east to 10 mph.
THURSDAY
Sunny. Highs 78 to 83.
THURSDAY NIGHT
Mostly clear. Lows 52 to 57.
FRIDAY
Partly cloudy. Highs 71 to 77.
FRIDAY NIGHT
Partly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows 50 to 55.
SATURDAY
Partly cloudy with a slight chance of showers. Highs 69 to 75.
SATURDAY NIGHT
Mostly clear. A slight chance of showers overnight. Lows 49 to 54.
SUNDAY
Partly cloudy with a slight chance of showers. Highs 67 to 72.
SUNDAY NIGHT
Partly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows 48 to 53.

Visible Weather Satellite
ONTARIO, CA 91758
Infrared Weather Satellite
ONTARIO, CA 91758
NEXRAD Weather Radar
ONTARIO, CA 91758

ONTARIO, CA 3 hourly weather forecast

weather forecast created  4:00 AM PST 11/ 9/2026
Monday
9 NOV 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 77° 78° Clear 0%

0% Thunder
( 0% severe)
  CALM 29% 42°
High 85° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 84° 81° Clear   CALM 19% 38°
Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 83° 81° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 23% 41°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 72° 72° Partly Cloudy   CALM 38% 45°
Tuesday
10 NOV 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 68° 68° Clear 0%

0% Thunder
( 0% severe)
NNE   6 45% 46°
Low 61° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 64° 64° Clear NNE   7 52% 46°
High 87° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 63° 64° Clear 0%

0% Thunder
( 0% severe)
NNE   5 50% 44°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 62° 62° Partly Cloudy N   6 50% 43°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 77° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 28% 41°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 84° 81° Clear   CALM 18% 36°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 84° 81° Clear 0%

0% Thunder
( 0% severe)
  CALM 20% 39°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 72° 72° Clear   CALM 33% 41°
Wednesday
11 NOV 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 67° 67° Clear 0%

0% Thunder
( 0% severe)
NNE   10 42% 43°
Low 60° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 63° 63° Clear NNE   8 48% 43°
High 86° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 61° 61° Clear 0%

0% Thunder
( 0% severe)
NE   6 50% 42°

Clear



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 61° 61° Clear NE   6 48% 41°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 77° 77° Clear 0%

0% Thunder
( 0% severe)
  CALM 24% 38°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 85° 82° Clear   CALM 16% 34°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 83° 81° Clear     W   6 19% 36°

ONTARIO, CA extended weather forecast

Thursday
12 NOV 2026
Friday
13 NOV 2026
Saturday
14 NOV 2026
Sunday
15 NOV 2026
Monday
16 NOV 2026
Low 57° Low 55° Low 53° Low 53° Low 55°
High 81° High 75° High 77° High 74° High 71°
ONTARIO, CA 91758 weather forecast Day 4 ONTARIO, CA 91758 weather forecast Day 5 ONTARIO, CA 91758 weather forecast Day 6 ONTARIO, CA 91758 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
2% Rain
Partly Cloudy
3% Rain
Partly Cloudy
6% Rain
Partly Cloudy
9% Rain
Overcast
23% Rain
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