ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

9:53 AM PST FEB 25, 2026
Few Clouds
70°F
Feels Like: 70°F
Dewpoint: 46°F
Rel. Hum.: 42%
Visibility: 10 miles
Wind: S at 3 mph
Pressure: 30.08 inches
Last 72 hours

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy this morning...becoming mostly sunny. Highs 77 to 81. Light winds becoming west 10 mph this afternoon.
TONIGHT
Mostly clear. Lows around 53 in wind sheltered areas to 54 to 60 in warmer locations. Light winds.
THURSDAY
Mostly sunny. Highs 82 to 86. Light winds becoming west 10 mph in the afternoon.
THURSDAY NIGHT
Clear. Lows around 56 in wind sheltered areas to 57 to 63 in warmer locations. Areas of winds north 10 mph becoming east overnight.
FRIDAY
Mostly sunny. Highs 87 to 91. Areas of winds east to 10 mph becoming northwest 10 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 57 to 62.
SATURDAY
Partly cloudy. Highs 82 to 86.
SATURDAY NIGHT
Mostly clear. Lows 51 to 56.
SUNDAY
Partly cloudy. Highs 75 to 80.
SUNDAY NIGHT
Partly cloudy. Lows 46 to 52.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 69 to 74.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 45 to 51.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 71 to 77.

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  2/25/2026
Wednesday
25 FEB 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
SE   1 53% 50°
High 79° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 77° 78° Partly Cloudy WSW   5 37% 49°
Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 78° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   8 37% 50°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 69° 69° Partly Cloudy W   3 59% 54°
Thursday
26 FEB 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 64° 66° Clear 0%

0% Thunder
( 0% severe)
NW   1 70% 54°
Low 56° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 61° 62° Clear ENE   1 75% 53°
High 85° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 59° 60° Clear 0%

0% Thunder
( 0% severe)
NE   1 80% 53°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 58° 59° Clear NNE   1 83% 53°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 71° 71° Clear 1%

0% Thunder
( 0% severe)
SSW   1 55% 54°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 82° 81° Clear WSW   5 35% 52°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 83° 82° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   7 36% 53°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 74° 74° Partly Cloudy NW   5 51% 55°
Friday
27 FEB 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   3 63% 56°
Low 59° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 64° 65° Clear NNE   3 70% 54°
High 89° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 62° 63° Clear 0%

0% Thunder
( 0% severe)
NNE   2 70% 52°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 62° 63° Partly Cloudy NNE   2 67% 51°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 76° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
ENE   1 46% 54°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 87° 85° Partly Cloudy W   2 29% 51°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 87° 85° Partly Cloudy     W   7 29% 51°

ONTARIO, CA extended weather forecast

Saturday
28 FEB 2026
Sunday
1 MAR 2026
Monday
2 MAR 2026
Tuesday
3 MAR 2026
Wednesday
4 MAR 2026
Low 60° Low 57° Low 52° Low 48° Low 51°
High 85° High 74° High 68° High 74° High 71°
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
4% Rain
Partly Cloudy
10% Rain
Overcast
37% Rain
Mostly Cloudy
25% Rain
Mostly Cloudy
20% Rain
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