ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

7:53 PM PDT JUN 28, 2026
Few Clouds
68°F
Feels Like: 68°F
Dewpoint: 54°F
Rel. Hum.: 61%
Visibility: 10 miles
Wind: WSW at 12 mph
Pressure: 29.83 inches
Last 72 hours

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening...becoming mostly cloudy. Patchy fog overnight. Cooler. Lows 49 to 56. Areas of winds southwest 10 to 15 mph with gusts to 30 mph becoming south overnight.
MONDAY
Partly cloudy with patchy fog in the morning...becoming sunny. Highs 75 to 81. Areas of winds southwest to 10 mph... Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
MONDAY NIGHT
Mostly clear in the evening...becoming mostly cloudy overnight with patchy fog. Lows 50 to 56. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.
TUESDAY
Mostly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 74 to 81. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 51 to 56. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.
WEDNESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 77 to 83.
WEDNESDAY NIGHT
Clear. Lows 50 to 55.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 87.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 54 to 58.
FRIDAY
Partly cloudy. Highs 84 to 91.
FRIDAY NIGHT
Partly cloudy. Lows 56 to 60.
INDEPENDENCE DAY
Partly cloudy. Highs 86 to 93.
SATURDAY NIGHT
Mostly clear. Lows 57 to 61.

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  5:00 AM PDT  6/28/2026
Sunday
28 JUN 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 11 AM 65° 65° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WSW   5 70% 55°
High 74° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 2 PM 72° 72° Clear WSW   12 51% 53°
Decreasing Clouds



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 5 PM 73° 73° Clear 0%

0% Thunder
( 0% severe)
WSW   14 51% 54°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 8 PM 66° 66° Clear WSW   13 68% 55°
Monday
29 JUN 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 11 PM 61° 60° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   9 81% 55°
Low 57° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 2 AM 59° 58° Partly Cloudy W   6 90% 56°
High 78° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 5 AM 58° 59° Mostly Cloudy 0%

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

Decreasing Clouds



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 8 AM 59° 60° Mostly Cloudy SW   2 90% 56°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 11 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   6 68% 55°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 2 PM 74° 74° Clear WSW   12 50% 54°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 5 PM 75° 75° Clear 0%

0% Thunder
( 0% severe)
WSW   14 48% 54°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 8 PM 68° 68° Clear WSW   15 63% 55°
Tuesday
30 JUN 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 11 PM 62° 61° Partly Cloudy 3%

0% Thunder
( 0% severe)
WSW   10 81% 56°
Low 58° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 2 AM 60° 60° Mostly Cloudy SW   6 90% 57°
High 79° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 5 AM 59° 60° Mostly Cloudy 2%

0% Thunder
( 0% severe)
  CALM 93% 57°

Decreasing Clouds



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 8 AM 60° 61° Mostly Cloudy SSW   1 93% 58°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 11 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   6 70% 56°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 2 PM 75° 75° Clear WSW   12 48% 54°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 5 PM 75° 75° Clear     WSW   14 50% 55°

ONTARIO, CA extended weather forecast

Wednesday
1 JUL 2026
Thursday
2 JUL 2026
Friday
3 JUL 2026
Saturday
4 JUL 2026
Sunday
5 JUL 2026
Low 62° Low 60° Low 61° Low 62° Low 63°
High 82° High 83° High 90° High 92° High 90°
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
13% Rain
Partly Cloudy
6% Rain
Partly Cloudy
4% Rain
Clear
2% Rain
Partly Cloudy
2% Rain
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