ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

1:53 PM PST MAR 4, 2026
Broken Clouds
68°F
Feels Like: 68°F
Dewpoint: 52°F
Rel. Hum.: 57%
Visibility: 10 miles
Wind: WSW at 12 mph
Pressure: 29.97 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 fog overnight. Lows 42 to 45 in wind sheltered areas to 43 to 49 in warmer locations. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 35 mph overnight.
THURSDAY
Mostly sunny. Areas of blowing dust. Highs 69 to 74. Areas of winds north 20 to 30 mph with gusts to 45 mph...becoming 15 to 20 mph with gusts to 35 mph in the afternoon.
THURSDAY NIGHT
Clear. Lows 39 to 42 in wind sheltered areas to 42 to 49 in warmer locations. Areas of winds north 15 to 25 mph. Gusts to 30 mph...becoming 45 mph overnight.
FRIDAY
Sunny. Highs 67 to 73. Areas of winds north 15 to 25 mph. Gusts to 45 mph...becoming 40 mph in the afternoon.
FRIDAY NIGHT
Clear. Lows around 42 in wind sheltered areas to 43 to 51 in warmer locations. Areas of winds north 10 to 20 mph. Gusts to 25 mph...becoming 35 mph overnight.
SATURDAY
Mostly sunny. Breezy. Highs 69 to 75.
SATURDAY NIGHT
Mostly clear. Lows 47 to 55.
SUNDAY
Mostly sunny in the morning...becoming partly cloudy. A slight chance of showers. Highs 74 to 81.
SUNDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 46 to 53.
MONDAY
Mostly sunny in the morning...becoming partly cloudy. A slight chance of showers. Highs 71 to 78.
MONDAY NIGHT
Partly cloudy. Lows 45 to 52.
TUESDAY
Partly cloudy. Highs 70 to 75.
TUESDAY NIGHT
Partly cloudy. Lows 46 to 53.

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  3/ 4/2026
Wednesday
4 MAR 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 63° 64° Clear 0%

0% Thunder
( 0% severe)
SW   1 58% 48°
High 73° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 72° 72° Partly Cloudy WSW   8 43% 48°
Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   12 47% 50°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 63° 63° Partly Cloudy WSW   7 67% 52°
Thursday
5 MAR 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 58° 58° Clear 0%

0% Thunder
( 0% severe)
W   3 80% 52°
Low 48° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 54° 54° Partly Cloudy W   2 86% 50°
High 73° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 52° 52° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   2 86% 48°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 51° 50° Partly Cloudy NW   5 80% 45°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 63° 63° Clear 0%

0% Thunder
( 0% severe)
NNE   8 36% 36°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 71° 71° Clear NNE   10 20% 28°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
NNE   10 15% 23°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 64° 64° Clear N   8 25% 28°
Friday
6 MAR 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 58° 57° Clear 0%

0% Thunder
( 0% severe)
NNE   7 36% 31°
Low 47° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 53° 50° Clear NNE   8 43% 31°
High 72° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 52° 49° Clear 0%

0% Thunder
( 0% severe)
NNE   9 43% 30°

Clear



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 51° 48° Clear NNE   9 42% 29°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 63° 62° Clear 0%

0% Thunder
( 0% severe)
NE   13 25% 27°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 70° 70° Clear NNE   13 17% 23°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 71° 71° Clear     N   13 16% 23°

ONTARIO, CA extended weather forecast

Saturday
7 MAR 2026
Sunday
8 MAR 2026
Monday
9 MAR 2026
Tuesday
10 MAR 2026
Wednesday
11 MAR 2026
Low 53° Low 57° Low 51° Low 52° Low 51°
High 75° High 77° High 75° High 70° High 76°
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
Clear
7% Rain
Partly Cloudy
5% Rain
Overcast
22% Rain
Mostly Cloudy
17% 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