ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

12:53 PM PDT OCT 1, 2025
Few Clouds
77°F
Feels Like: 78°F
Dewpoint: 54°F
Rel. Hum.: 45%
Visibility: 10 miles
Wind: Variable at 5 mph
Pressure: 30.01 inches
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ONTARIO, CA 91758
Weather Forecast

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Snow Depth pages
TODAY
Mostly sunny. Highs 79 to 84. Light winds becoming west 10 to 15 mph with gusts to 25 mph this afternoon.
TONIGHT
Mostly clear. Lows 54 to 57. Areas of winds west to 10 mph in the evening becoming light.
THURSDAY
Mostly sunny. Highs 80 to 85. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
THURSDAY NIGHT
Mostly clear. Lows 53 to 58. Areas of winds west 10 to 15 mph in the evening becoming light.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 81. Areas of winds south to 10 mph becoming southwest with gusts to 30 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 51 to 56.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 78 to 83.
SATURDAY NIGHT
Mostly clear. Lows 52 to 57.
SUNDAY
Mostly sunny. Highs 76 to 81.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 51 to 56.
MONDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 71 to 76.
MONDAY NIGHT
Mostly clear. Lows 49 to 55.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 74 to 79.

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 AM PDT 10/ 1/2025
Wednesday
1 OCT 2025
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 11 AM 71° 71° Clear 0%

0% Thunder
( 0% severe)
SSW   1 59% 56°
High 80° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 2 PM 79° 79° Clear WSW   6 42% 54°
Clear



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 5 PM 78° 79° Clear 0%

0% Thunder
( 0% severe)
WSW   12 45% 55°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 8 PM 70° 70° Clear WSW   6 61% 56°
Thursday
2 OCT 2025
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 11 PM 65° 65° Clear 0%

0% Thunder
( 0% severe)
WSW   5 75% 57°
Low 59° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 2 AM 62° 63° Clear N   2 81% 56°
High 83° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 5 AM 61° 62° Clear 0%

0% Thunder
( 0% severe)
NE   1 84% 56°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 8 AM 61° 62° Partly Cloudy E   1 87% 57°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 11 AM 71° 71° Clear 0%

0% Thunder
( 0% severe)
SSW   2 55% 54°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 2 PM 81° 80° Clear WSW   7 34% 50°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 5 PM 79° 79° Clear 0%

0% Thunder
( 0% severe)
WSW   12 39% 52°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 8 PM 70° 70° Clear WSW   7 59% 55°
Friday
3 OCT 2025
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 11 PM 65° 65° Clear 0%

0% Thunder
( 0% severe)
WSW   7 73% 56°
Low 60° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 2 AM 63° 64° Partly Cloudy SW   5 81% 57°
High 78° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 5 AM 62° 63° Partly Cloudy 1%

0% Thunder
( 0% severe)
S   3 87% 58°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 8 AM 62° 63° Partly Cloudy SSE   3 87% 58°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 11 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   3 68% 57°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 2 PM 76° 78° Clear SW   9 46% 54°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 5 PM 74° 74° Clear     WSW   13 50% 54°

ONTARIO, CA extended weather forecast

Saturday
4 OCT 2025
Sunday
5 OCT 2025
Monday
6 OCT 2025
Tuesday
7 OCT 2025
Wednesday
8 OCT 2025
Low 57° Low 57° Low 60° Low 56° Low 58°
High 81° High 81° High 77° High 82° High 85°
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
4% Rain
Partly Cloudy
6% Rain
Mostly Cloudy
16% Rain
Partly Cloudy
9% Rain
Clear
5% Rain
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