ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

4:53 PM PDT MAR 11, 2026
Clear
82°F
Feels Like: 81°F
Dewpoint: 48°F
Rel. Hum.: 31%
Visibility: 10 miles
Wind: W at 7 mph
Pressure: 30.18 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. Lows around 51 in wind sheltered areas to 53 to 63 in warmer locations. Areas of winds west to 10 mph becoming east 10 mph overnight.
THURSDAY
Mostly sunny. Warmer. Highs 88 to 94. Areas of winds north 10 to 15 mph. Gusts to 25 mph...becoming 30 mph in the afternoon.
THURSDAY NIGHT
Clear. Lows 53 to 56 in wind sheltered areas to 56 to 65 in warmer locations. Areas of winds east 10 to 15 mph. Gusts to 25 mph in the evening.
FRIDAY
Mostly sunny. Highs 89 to 94. Areas of winds east to 10 mph becoming west with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Partly cloudy. Lows 53 to 56 in wind sheltered areas to 56 to 66 in warmer locations. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
SATURDAY
Partly cloudy. Highs 85 to 91.
SATURDAY NIGHT
Partly cloudy in the evening...becoming clear. Lows 50 to 60.
SUNDAY
Partly cloudy. Highs 89 to 94.
SUNDAY NIGHT
Partly cloudy in the evening...becoming mostly clear. Lows 52 to 62.
MONDAY
Mostly sunny. Highs 91 to 96.
MONDAY NIGHT
Mostly clear. Lows 55 to 65.
TUESDAY
Sunny. Highs 93 to 98.
TUESDAY NIGHT
Clear. Lows 55 to 65.

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  3/11/2026
Wednesday
11 MAR 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 65° 65° Clear 0%

0% Thunder
( 0% severe)
WSW   1 60% 51°
High 83° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 79° 79° Clear W   6 34% 48°
Clear



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 82° 80° Clear 0%

0% Thunder
( 0% severe)
W   8 28% 46°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 72° 72° Clear WSW   5 46% 50°
Thursday
12 MAR 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 66° 66° Clear 0%

0% Thunder
( 0% severe)
ENE   3 54% 49°
Low 57° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 62° 63° Clear NNE   2 56% 46°
High 92° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 60° 61° Clear 0%

0% Thunder
( 0% severe)
N   2 53% 43°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 62° 63° Clear N   2 43% 39°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 79° 78° Clear 0%

0% Thunder
( 0% severe)
S   2 25% 40°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 90° 86° Clear N   5 14% 35°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 91° 87° Clear 0%

0% Thunder
( 0% severe)
WNW   6 13% 33°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 80° 79° Clear NNW   5 21% 37°
Friday
13 MAR 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
NNE   5 29% 38°
Low 60° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 67° 67° Clear NNE   3 33% 37°
High 91° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 64° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   2 34% 35°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 64° 66° Partly Cloudy NE   1 35% 36°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 80° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   1 22% 38°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 90° 86° Partly Cloudy SW   6 13% 33°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 89° 85° Partly Cloudy     WSW   9 14% 34°

ONTARIO, CA extended weather forecast

Saturday
14 MAR 2026
Sunday
15 MAR 2026
Monday
16 MAR 2026
Tuesday
17 MAR 2026
Wednesday
18 MAR 2026
Low 58° Low 55° Low 57° Low 59° Low 58°
High 84° High 87° High 94° High 91° High 92°
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
2% Rain
Partly Cloudy
2% Rain
Clear
1% Rain
Clear
3% Rain
Partly Cloudy
2% 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