ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

8:53 PM PDT JUL 5, 2026
Few Clouds
75°F
Feels Like: 75°F
Dewpoint: 54°F
Rel. Hum.: 48%
Visibility: 10 miles
Wind: WSW at 10 mph
Pressure: 29.92 inches
Last 72 hours

Local Area Snow Depth

California Current Weather

California MOS Forecast Weather


Regional Weather Maps


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2025 Hurricanes

ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Patchy dense fog overnight. Lows 58 to 63. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.
MONDAY
Mostly sunny. Highs 90 to 97. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
MONDAY NIGHT
Mostly clear. Patchy dense fog overnight. Lows 58 to 63. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 90 to 98. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 59 to 64. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 94 to 102.
WEDNESDAY NIGHT
Clear. Lows 61 to 66.
THURSDAY
Mostly sunny. Highs 94 to 102.
THURSDAY NIGHT
Clear. Lows 60 to 65.
FRIDAY
Mostly sunny. Highs 91 to 100.
FRIDAY NIGHT
Mostly clear. Lows 59 to 64.
SATURDAY
Partly cloudy. Highs 90 to 98.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 60 to 64.

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  7/ 5/2026
Sunday
5 JUL 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 11 AM 78° 79° Partly Cloudy 1%

0% Thunder
( 0% severe)
SW   7 50% 58°
High 88° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 2 PM 87° 85° Partly Cloudy WSW   12 34% 55°
Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 5 PM 87° 85° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   13 34% 55°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 8 PM 79° 80° Partly Cloudy WSW   12 44% 55°
Monday
6 JUL 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 11 PM 71° 71° Clear 1%

0% Thunder
( 0% severe)
WSW   8 59% 56°
Low 63° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 2 AM 66° 66° Clear WSW   5 75% 58°
High 91° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 5 AM 64° 66° Clear 1%

0% Thunder
( 0% severe)
  CALM 81% 58°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 8 AM 67° 67° Partly Cloudy   CALM 73% 58°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 11 AM 78° 79° Partly Cloudy 1%

0% Thunder
( 0% severe)
SW   6 50% 58°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 2 PM 88° 86° Clear WSW   10 34% 56°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 5 PM 88° 86° Clear 0%

0% Thunder
( 0% severe)
WSW   13 34% 56°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 8 PM 79° 80° Clear WSW   12 47% 57°
Tuesday
7 JUL 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 11 PM 71° 71° Clear 0%

0% Thunder
( 0% severe)
WSW   8 63% 58°
Low 64° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 2 AM 67° 67° Partly Cloudy WSW   5 75% 59°
High 93° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 5 AM 64° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 84% 59°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 8 AM 67° 67° Partly Cloudy   CALM 75% 59°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 11 AM 80° 81° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   6 49% 59°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 2 PM 90° 89° Clear WSW   10 33% 57°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 5 PM 90° 88° Clear     WSW   13 32% 56°

ONTARIO, CA extended weather forecast

Wednesday
8 JUL 2026
Thursday
9 JUL 2026
Friday
10 JUL 2026
Saturday
11 JUL 2026
Sunday
12 JUL 2026
Low 66° Low 66° Low 65° Low 65° Low 65°
High 97° High 97° High 91° High 96° High 100°
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
Clear
2% Rain
Partly Cloudy
2% Rain
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
Partly Cloudy
1% Rain
WEATHER SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Ontario, CA
Ontario, CA snow
Ontario, CA radar
CA map
-or-
-or-
-or-
 
91758
91758 snow
91758 radar
 
-or-
-or-
 
 
CA
CA snow
 
 
Copyright © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions