ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

11:53 AM PDT APR 3, 2026
Broken Clouds
79°F
Feels Like: 78°F
Dewpoint: 36°F
Rel. Hum.: 21%
Visibility: 10 miles
Wind: NE at 15 mph, gusts to 24
Pressure: 30.00 inches
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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening...becoming mostly clear. Lows 45 to 49 in wind sheltered areas to 49 to 58 in warmer locations. Areas of winds north 10 to 20 mph becoming east overnight. Gusts to 35 mph.
SATURDAY
Mostly sunny in the morning...becoming partly cloudy. Highs 82 to 87. Areas of winds north 10 to 20 mph. Gusts to 35 mph...becoming 30 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy in the evening...becoming mostly clear. Lows 47 to 52 in wind sheltered areas to 51 to 58 in warmer locations. Areas of winds west 10 to 15 mph in the evening becoming light.
SUNDAY
Mostly sunny. Highs 82 to 88. Light winds becoming west 10 to 15 mph with gusts to 30 mph in the afternoon.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 49 to 52 in wind sheltered areas to 52 to 59 in warmer locations. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
MONDAY
Partly cloudy. Highs 79 to 85.
MONDAY NIGHT
Mostly clear. Lows 47 to 55.
TUESDAY
Mostly sunny. Highs 79 to 84.
TUESDAY NIGHT
Mostly clear. Lows 47 to 55.
WEDNESDAY
Mostly sunny. Highs 77 to 82.
WEDNESDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers overnight. Lows 49 to 56.
THURSDAY
Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers in the afternoon. Highs 67 to 73.
THURSDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 46 to 53.

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  4/ 3/2026
Friday
3 APR 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
NNE   17 22% 29°
High 81° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 78° 77° Partly Cloudy NNE   16 11% 20°
Increasing Clouds



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 80° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   14 9% 17°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 73° 73° Mostly Cloudy NNE   13 11% 17°
Saturday
4 APR 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 67° 67° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   10 16% 20°
Low 56° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 63° 62° Clear NNE   9 19% 21°
High 86° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 60° 59° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   8 21% 21°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 63° 63° Partly Cloudy NNE   8 20% 22°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 76° 76° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   9 12% 20°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 85° 82° Partly Cloudy NNE   7 8% 18°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 85° 82° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   8 9% 20°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 75° 75° Partly Cloudy W   6 19% 30°
Sunday
5 APR 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 67° 67° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   3 32% 36°
Low 55° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 61° 62° Clear N   1 42% 38°
High 85° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 58° 59° Clear 0%

0% Thunder
( 0% severe)
N   1 47% 38°

Clear



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 61° 62° Clear   CALM 44% 39°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 75° 75° Clear 0%

0% Thunder
( 0% severe)
SW   2 24% 36°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 84° 81° Clear WSW   10 16% 33°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 82° 80° Partly Cloudy     WSW   12 21% 38°

ONTARIO, CA extended weather forecast

Monday
6 APR 2026
Tuesday
7 APR 2026
Wednesday
8 APR 2026
Thursday
9 APR 2026
Friday
10 APR 2026
Low 54° Low 54° Low 56° Low 58° Low 55°
High 82° High 83° High 79° High 72° High 70°
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
3% Rain
Partly Cloudy
2% Rain
Partly Cloudy
3% Rain
Overcast
40% Rain
Overcast
50% Rain
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