ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

12:53 AM PST JAN 14, 2026
Clear
55°F
Feels Like: 55°F
Dewpoint: 32°F
Rel. Hum.: 41%
Visibility: 10 miles
Wind: Calm
Pressure: 30.17 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
2025 Hurricanes

ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Clear. Lows 45 to 49 in wind sheltered areas to 49 to 57 in warmer locations. Areas of winds north 10 mph. Gusts to 25 mph...becoming 30 mph overnight.
WEDNESDAY
Mostly sunny. Highs 79 to 83. Areas of winds north 10 to 15 mph with gusts to 30 mph.
WEDNESDAY NIGHT
Clear. Lows 47 to 51 in wind sheltered areas to 52 to 56 in warmer locations. Areas of winds east 10 to 15 mph with gusts to 30 mph.
THURSDAY
Mostly sunny. Highs 78 to 83. Areas of winds east 10 to 15 mph with gusts to 30 mph.
THURSDAY NIGHT
Mostly clear. Lows around 50 in wind sheltered areas to 51 to 54 in warmer locations. Areas of winds east 10 to 15 mph. Gusts to 25 mph in the evening.
FRIDAY
Mostly sunny. Highs 77 to 82.
FRIDAY NIGHT
Clear. Lows 48 to 53.
SATURDAY
Mostly sunny. Highs 77 to 82.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 48 to 53.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 81.
SUNDAY NIGHT
Mostly clear. Lows 49 to 53.
MARTIN LUTHER KING JR DAY
Mostly sunny. Highs 75 to 79.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 46 to 52.

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 PM PST  1/13/2026
Wednesday
14 JAN 2026
ONTARIO, CA 91758 weather forecast Day 1, 0 hours 10 PM 61° 60° Clear 0%

0% Thunder
( 0% severe)
NNW   8 36% 34°
Low 55° ONTARIO, CA 91758 weather forecast Day 1, 3 hours 1 AM 58° 57° Clear NNE   6 36% 31°
High 81° ONTARIO, CA 91758 weather forecast Day 1, 6 hours 4 AM 56° 55° Clear 0%

0% Thunder
( 0% severe)
N   5 40% 32°

Clear



ONTARIO, CA 91758 weather forecast Day 1, 9 hours 7 AM 56° 55° Clear NNE   5 38% 31°
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
NNE   6 25% 33°
ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 79° 78° Clear NNE   7 18% 32°
ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 79° 78° Clear 0%

0% Thunder
( 0% severe)
NNE   8 19% 33°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 70° 70° Clear NNE   9 26% 34°
Thursday
15 JAN 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 65° 65° Clear 0%

0% Thunder
( 0% severe)
NNE   9 31% 34°
Low 52° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 60° 59° Clear NE   8 36% 33°
High 80° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 58° 57° Clear 0%

0% Thunder
( 0% severe)
NNE   7 40% 34°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 55° 53° Clear NE   7 45% 34°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
ENE   6 31% 37°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 78° 78° Clear ENE   5 22% 36°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 78° 78° Clear 0%

0% Thunder
( 0% severe)
N   5 24% 38°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 67° 67° Clear NNE   6 37% 40°

ONTARIO, CA extended weather forecast

Friday
16 JAN 2026
Saturday
17 JAN 2026
Sunday
18 JAN 2026
Monday
19 JAN 2026
Tuesday
20 JAN 2026
Low 49° Low 49° Low 47° Low 47° Low 49°
High 81° High 81° High 78° High 77° High 76°
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
1% Rain
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
Clear
3% Rain
Clear
3% 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 © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions