ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

11:53 PM PDT AUG 2, 2026
Clear
73°F
Feels Like: 73°F
Dewpoint: 61°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: W at 7 mph
Pressure: 29.84 inches
Last 72 hours

Local Area Snow Depth

California Current Weather

California MOS Forecast Weather


Weather Map


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2026 Hurricanes

ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows 64 to 70. Areas of winds west 10 mph this evening becoming light.
MONDAY
Mostly sunny. Highs 96 to 103. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
MONDAY NIGHT
Mostly clear. Lows 63 to 69. Areas of winds west to 10 mph with gusts to 25 mph in the evening becoming light.
TUESDAY
Mostly sunny. Highs 95 to 103. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
TUESDAY NIGHT
Clear. Lows 63 to 68. Areas of winds west to 10 mph with gusts to 25 mph in the evening becoming light.
WEDNESDAY
Mostly sunny. Highs 95 to 102.
WEDNESDAY NIGHT
Clear. Lows 63 to 69.
THURSDAY
Mostly sunny. Highs 96 to 103.
THURSDAY NIGHT
Mostly clear. Lows 64 to 70.
FRIDAY
Mostly sunny. Highs 96 to 103.
FRIDAY NIGHT
Mostly clear. Lows 65 to 71.
SATURDAY
Mostly sunny. Highs 96 to 103.
SATURDAY NIGHT
Mostly clear. Lows 64 to 70.

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 PM PDT  8/ 2/2026
Monday
3 AUG 2026
ONTARIO, CA 91758 weather forecast Day 1, 0 hours 11 PM 77° 79° Clear 0%

0% Thunder
( 0% severe)
W   8 54% 59°
Low 69° ONTARIO, CA 91758 weather forecast Day 1, 3 hours 2 AM 73° 73° Clear WSW   6 62% 59°
High 99° ONTARIO, CA 91758 weather forecast Day 1, 6 hours 5 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
N   3 68% 59°

Clear



ONTARIO, CA 91758 weather forecast Day 1, 9 hours 8 AM 73° 73° Clear SSW   2 62% 59°
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 11 AM 87° 86° Clear 0%

0% Thunder
( 0% severe)
SW   5 38% 58°
ONTARIO, CA 91758 weather forecast Day 1, 15 hours 2 PM 97° 95° Clear WSW   10 23% 53°
ONTARIO, CA 91758 weather forecast Day 1, 18 hours 5 PM 95° 93° Clear 0%

0% Thunder
( 0% severe)
WSW   13 26% 55°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 8 PM 84° 84° Clear WSW   9 43% 59°
Tuesday
4 AUG 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 11 PM 76° 78° Clear 0%

0% Thunder
( 0% severe)
W   8 58% 60°
Low 68° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 2 AM 72° 72° Clear WSW   6 61% 58°
High 98° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 5 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
W   5 68% 58°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 8 AM 72° 72° Clear   CALM 61% 58°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 11 AM 86° 85° Clear 0%

0% Thunder
( 0% severe)
SW   5 37% 57°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 2 PM 96° 94° Clear WSW   10 24% 53°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 5 PM 94° 92° Clear 0%

0% Thunder
( 0% severe)
WSW   13 27% 55°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 8 PM 83° 83° Clear WSW   10 44% 59°

ONTARIO, CA extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 69° Low 67° Low 69° Low 69° Low 69°
High 98° High 97° High 98° High 98° High 97°
ONTARIO, CA 91758 weather forecast Day 3 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
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
1% Rain
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 © 2026 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions