ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

2:53 PM PST FEB 22, 2026
Broken Clouds
75°F
Feels Like: 75°F
Dewpoint: 30°F
Rel. Hum.: 19%
Visibility: 10 miles
Wind: Calm
Pressure: 30.15 inches
Last 72 hours

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows 44 to 47 in wind sheltered areas to 47 to 54 in warmer locations. Areas of winds east to 10 mph.
MONDAY
Partly cloudy. Highs 77 to 82. Areas of winds east to 10 mph becoming west in the afternoon.
MONDAY NIGHT
Partly cloudy. Lows around 50 in wind sheltered areas to 51 to 57 in warmer locations. Light winds.
TUESDAY
Mostly sunny. Highs 77 to 81. Light winds becoming west 10 mph in the afternoon.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows around 52 in wind sheltered areas to 53 to 58 in warmer locations. Areas of winds west to 10 mph in the evening becoming light.
WEDNESDAY
Partly cloudy. Highs 77 to 81.
WEDNESDAY NIGHT
Partly cloudy. Lows 52 to 57.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 85.
THURSDAY NIGHT
Mostly clear. Lows 54 to 59.
FRIDAY
Partly cloudy. Highs 82 to 87.
FRIDAY NIGHT
Partly cloudy. Lows 55 to 60.
SATURDAY
Partly cloudy. Highs 79 to 85.
SATURDAY NIGHT
Partly cloudy. Lows 52 to 58.

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  2/22/2026
Sunday
22 FEB 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 62° 63° Clear 0%

0% Thunder
( 0% severe)
E   2 39% 37°
High 75° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 72° 72° Partly Cloudy E   3 25% 34°
Clear



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 74° 74° Clear 0%

0% Thunder
( 0% severe)
NE   5 24% 35°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 64° 65° Clear W   5 41% 40°
Monday
23 FEB 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 59° 58° Clear 0%

0% Thunder
( 0% severe)
NE   6 49% 40°
Low 48° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 54° 53° Clear NNE   5 55% 38°
High 79° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 52° 52° Clear 0%

0% Thunder
( 0% severe)
NNE   3 54% 36°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 52° 52° Partly Cloudy N   3 52% 35°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   3 38% 40°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 77° 77° Partly Cloudy SW   2 23% 36°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 78° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   5 24% 38°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 68° 68° Partly Cloudy WNW   3 39% 42°
Tuesday
24 FEB 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 63° 64° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   2 48% 43°
Low 52° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 58° 59° Partly Cloudy NE   1 55% 42°
High 79° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 56° 56° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 55% 40°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 56° 56° Partly Cloudy   CALM 55% 40°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
ESE   1 40% 43°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 77° 78° Partly Cloudy WSW   5 29% 42°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 78° 78° Partly Cloudy     WSW   8 31% 45°

ONTARIO, CA extended weather forecast

Wednesday
25 FEB 2026
Thursday
26 FEB 2026
Friday
27 FEB 2026
Saturday
28 FEB 2026
Sunday
1 MAR 2026
Low 55° Low 55° Low 57° Low 56° Low 54°
High 78° High 81° High 85° High 81° High 77°
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
6% Rain
Partly Cloudy
12% Rain
Partly Cloudy
11% Rain
Partly Cloudy
8% Rain
Partly Cloudy
16% Rain
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