ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

1:53 AM PST JAN 28, 2026
Broken Clouds
50°F
Feels Like: 50°F
Dewpoint: 28°F
Rel. Hum.: 42%
Visibility: 10 miles
Wind: NE at 3 mph
Pressure: 30.25 inches
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ONTARIO, CA 91758
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy. Highs 71 to 75. Light winds becoming north 10 to 15 mph with gusts to 25 mph this afternoon.
TONIGHT
Partly cloudy in the evening...becoming mostly clear. Lows 41 to 45 in wind sheltered areas to 45 to 54 in warmer locations. Areas of winds north 10 to 15 mph becoming east overnight. Gusts to 30 mph.
THURSDAY
Sunny. Highs 74 to 80. Areas of winds north 10 to 20 mph with gusts to 30 mph.
THURSDAY NIGHT
Clear. Lows 43 to 47 in wind sheltered areas to 48 to 54 in warmer locations. Areas of winds east 10 to 15 mph with gusts to 30 mph.
FRIDAY
Sunny. Highs 77 to 82. Areas of winds east 15 to 25 mph. Gusts to 35 mph...becoming 40 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 47 to 54.
SATURDAY
Mostly sunny. Highs 78 to 83.
SATURDAY NIGHT
Mostly clear. Lows 47 to 54.
SUNDAY
Partly cloudy. Highs 74 to 78.
SUNDAY NIGHT
Partly cloudy. Lows 45 to 52.
MONDAY
Partly cloudy. Highs 70 to 75.
MONDAY NIGHT
Mostly clear. Lows 44 to 51.
TUESDAY
Mostly sunny. Highs 73 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 PM PST  1/27/2026
Wednesday
28 JAN 2026
ONTARIO, CA 91758 weather forecast Day 1, 0 hours 10 PM 56° 56° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NNE   2 37% 30°
Low 48° ONTARIO, CA 91758 weather forecast Day 1, 3 hours 1 AM 52° 52° Partly Cloudy NE   2 39% 28°
High 73° ONTARIO, CA 91758 weather forecast Day 1, 6 hours 4 AM 50° 50° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NNE   1 40% 27°

Mostly Cloudy



ONTARIO, CA 91758 weather forecast Day 1, 9 hours 7 AM 49° 49° Mostly Cloudy NNE   1 40% 26°
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 61° 62° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SE   1 28% 28°
ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 71° 71° Mostly Cloudy WSW   2 17% 25°
ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 71° 71° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WSW   5 21% 29°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 63° 63° Mostly Cloudy NW   6 29% 30°
Thursday
29 JAN 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 58° 57° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   7 34% 30°
Low 46° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 54° 52° Clear N   7 38% 29°
High 78° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 51° 49° Clear 0%

0% Thunder
( 0% severe)
N   6 41% 28°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 51° 49° Clear NE   6 39% 27°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 66° 66° Clear 0%

0% Thunder
( 0% severe)
NE   7 25% 29°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 76° 76° Clear NE   7 15% 26°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 76° 76° Clear 0%

0% Thunder
( 0% severe)
NNE   8 17% 28°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 66° 66° Clear NNE   9 26% 30°

ONTARIO, CA extended weather forecast

Friday
30 JAN 2026
Saturday
31 JAN 2026
Sunday
1 FEB 2026
Monday
2 FEB 2026
Tuesday
3 FEB 2026
Low 48° Low 51° Low 49° Low 49° Low 48°
High 81° High 81° High 77° High 74° High 78°
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
Clear
1% Rain
Partly Cloudy
2% Rain
Mostly Cloudy
4% Rain
Clear
7% Rain
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