ONTARIO, CA 91758 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


ONTARIO, CA
Current Weather

5:53 PM PST NOV 21, 2025
Broken Clouds
61°F
Feels Like: 58°F
Dewpoint: 43°F
Rel. Hum.: 51%
Visibility: 10 miles
Wind: NNE at 18 mph, gusts to 31
Pressure: 29.95 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
Partly cloudy this evening...becoming mostly cloudy. A chance of showers. Lows 45 to 50. Areas of winds east 10 to 20 mph. Gusts to 40 mph...becoming 35 mph overnight. Chance of measurable precipitation 50 percent.
SATURDAY
Mostly cloudy with a chance of showers in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 63 to 69. Areas of winds northeast 10 to 20 mph. Gusts to 35 mph...becoming 30 mph in the afternoon. Chance of measurable precipitation 40 percent.
SATURDAY NIGHT
Mostly clear. Patchy fog overnight. Lows 43 to 47. Areas of winds east 10 to 15 mph with gusts to 25 mph in the evening becoming light.
SUNDAY
Patchy fog in the morning. Sunny. Highs 65 to 70. Light winds.
SUNDAY NIGHT
Mostly clear. Lows 42 to 47. Light winds.
MONDAY
Mostly sunny. Highs 66 to 71.
MONDAY NIGHT
Mostly clear. Lows 44 to 48.
TUESDAY
Mostly sunny. Highs 71 to 75.
TUESDAY NIGHT
Clear. Lows 46 to 50.
WEDNESDAY
Mostly sunny. Highs 73 to 78.
WEDNESDAY NIGHT
Mostly clear. Lows 48 to 52.
THANKSGIVING DAY
Partly cloudy. Highs 73 to 79.
THURSDAY NIGHT
Mostly clear. Lows 48 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 AM PST 11/21/2025
Friday
21 NOV 2025
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 55° 53° Mostly Cloudy 19%
RAIN
.01–.1 in
0% Thunder
( 5% severe)
ENE   8 80% 49°
High 61° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 60° 59° Mostly Cloudy E   8 62% 47°
Mostly Cloudy

Chance of Rain

ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 60° 59° Mostly Cloudy 23%
RAIN
<.01 in
0% Thunder
( 1% severe)
ENE   7 62% 47°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 56° 53° Partly Cloudy NE   10 69% 46°
Saturday
22 NOV 2025
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 54° 50° Partly Cloudy 23%
RAIN
<.01 in
0% Thunder
( 0% severe)
NNE   15 71% 45°
Low 51° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 54° 51° Partly Cloudy NNE   12 69% 44°
High 67° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 53° 51° Mostly Cloudy 16%
RAIN
<.01 in
0% Thunder
( 0% severe)
NNE   7 71% 44°

Mostly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 53° 51° Mostly Cloudy NNE   7 74% 45°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 59° 58° Partly Cloudy 8%

0% Thunder
( 0% severe)
NNE   8 62% 46°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 65° 65° Partly Cloudy NNE   8 46% 44°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 65° 65° Partly Cloudy 4%

0% Thunder
( 0% severe)
NNE   8 46% 44°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 59° 58° Partly Cloudy N   7 64% 47°
Sunday
23 NOV 2025
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 56° 54° Clear 1%

0% Thunder
( 0% severe)
NNE   7 69% 46°
Low 48° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 53° 52° Clear NNE   5 77% 46°
High 68° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 51° 50° Clear 0%

0% Thunder
( 0% severe)
NNE   3 80% 45°

Clear



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 50° 50° Clear NNE   2 83% 45°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 59° 60° Clear 0%

0% Thunder
( 0% severe)
S   1 64% 47°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 67° 67° Clear WSW   3 45% 45°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 66° 66° Clear     WSW   5 54% 49°

ONTARIO, CA extended weather forecast

Monday
24 NOV 2025
Tuesday
25 NOV 2025
Wednesday
26 NOV 2025
Thursday
27 NOV 2025
Friday
28 NOV 2025
Low 48° Low 47° Low 48° Low 47° Low 48°
High 69° High 73° High 76° High 76° High 74°
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
5% Rain
Partly Cloudy
7% Rain
Clear
5% Rain
Clear
3% Rain
Partly Cloudy
8% 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