ONTARIO, CA 91764 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

6:53 AM PDT MAY 13, 2026
Overcast
63°F
Feels Like: 63°F
Dewpoint: 54°F
Rel. Hum.: 72%
Visibility: 9 miles
Wind: SW at 6 mph
Pressure: 30.07 inches
Last 72 hours

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ONTARIO, CA 91764
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy with patchy fog this morning...becoming sunny. Highs 76 to 82. Areas of winds southwest to 10 mph becoming west with gusts to 25 mph this afternoon.
TONIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 49 to 52 in wind sheltered areas to 50 to 56 in warmer locations. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 79 to 85. Areas of winds west to 10 mph... Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
THURSDAY NIGHT
Mostly clear. Lows 50 to 53 in wind sheltered areas to 51 to 58 in warmer locations. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
FRIDAY
Mostly sunny. Highs 79 to 86. Areas of winds southwest to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 50 to 56.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 78 to 85.
SATURDAY NIGHT
Mostly clear. Lows 50 to 55.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 82.
SUNDAY NIGHT
Mostly clear. Lows 49 to 55.
MONDAY
Mostly sunny. Highs 82 to 88.
MONDAY NIGHT
Mostly clear. Lows 51 to 58.
TUESDAY
Mostly sunny. Highs 87 to 93.

Visible Weather Satellite
ONTARIO, CA 91764
Infrared Weather Satellite
ONTARIO, CA 91764
NEXRAD Weather Radar
ONTARIO, CA 91764

ONTARIO, CA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  5/12/2026
Wednesday
13 MAY 2026
ONTARIO, CA 91764 weather forecast Day 1, 0 hours 11 PM 63° 63° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   8 75% 55°
Low 57° ONTARIO, CA 91764 weather forecast Day 1, 3 hours 2 AM 60° 60° Mostly Cloudy W   5 87% 56°
High 79° ONTARIO, CA 91764 weather forecast Day 1, 6 hours 5 AM 58° 59° Mostly Cloudy 2%

0% Thunder
( 0% severe)
  CALM 93% 56°

Decreasing Clouds



ONTARIO, CA 91764 weather forecast Day 1, 9 hours 8 AM 60° 61° Mostly Cloudy   CALM 90% 57°
ONTARIO, CA 91764 weather forecast Day 1, 12 hours 11 AM 68° 68° Partly Cloudy 1%

0% Thunder
( 0% severe)
SW   6 63% 55°
ONTARIO, CA 91764 weather forecast Day 1, 15 hours 2 PM 76° 78° Clear WSW   12 43% 52°
ONTARIO, CA 91764 weather forecast Day 1, 18 hours 5 PM 75° 75° Clear 0%

0% Thunder
( 0% severe)
WSW   13 46% 53°
ONTARIO, CA 91764 weather forecast Day 1, 21 hours 8 PM 68° 68° Clear WSW   12 61% 54°
Thursday
14 MAY 2026
ONTARIO, CA 91764 weather forecast Day 2, 0 hours 11 PM 62° 62° Clear 0%

0% Thunder
( 0% severe)
WSW   6 75% 54°
Low 55° ONTARIO, CA 91764 weather forecast Day 2, 3 hours 2 AM 59° 60° Clear WSW   1 87% 55°
High 81° ONTARIO, CA 91764 weather forecast Day 2, 6 hours 5 AM 57° 58° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 93% 55°

Partly Cloudy



ONTARIO, CA 91764 weather forecast Day 2, 9 hours 8 AM 60° 61° Partly Cloudy   CALM 87% 56°
ONTARIO, CA 91764 weather forecast Day 2, 12 hours 11 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
SW   5 59% 55°
ONTARIO, CA 91764 weather forecast Day 2, 15 hours 2 PM 78° 79° Clear WSW   12 42% 53°
ONTARIO, CA 91764 weather forecast Day 2, 18 hours 5 PM 78° 79° Clear 0%

0% Thunder
( 0% severe)
WSW   13 43% 54°
ONTARIO, CA 91764 weather forecast Day 2, 21 hours 8 PM 70° 70° Clear WSW   10 59% 55°

ONTARIO, CA extended weather forecast

Friday
15 MAY 2026
Saturday
16 MAY 2026
Sunday
17 MAY 2026
Monday
18 MAY 2026
Tuesday
19 MAY 2026
Low 59° Low 58° Low 60° Low 60° Low 56°
High 78° High 77° High 77° High 82° High 86°
ONTARIO, CA 91764 weather forecast Day 3 ONTARIO, CA 91764 weather forecast Day 4 ONTARIO, CA 91764 weather forecast Day 5 ONTARIO, CA 91764 weather forecast Day 6 ONTARIO, CA 91764 weather forecast Day 7
Mostly Cloudy
1% Rain
Partly Cloudy
3% Rain
Partly Cloudy
8% Rain
Partly Cloudy
6% Rain
Clear
2% Rain
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