ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

10:53 PM PDT JUL 26, 2026
Clear
79°F
Feels Like: 81°F
Dewpoint: 64°F
Rel. Hum.: 60%
Visibility: 10 miles
Wind: WSW at 9 mph
Pressure: 29.95 inches
Last 72 hours

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening...becoming mostly clear. Lows 65 to 71. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.
MONDAY
Mostly sunny. Highs 95 to 102. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
MONDAY NIGHT
Mostly clear. Lows 63 to 69. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
TUESDAY
Mostly sunny. Highs 94 to 101. Light winds becoming west 10 to 15 mph with gusts to 30 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 61 to 66. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.
WEDNESDAY
Mostly sunny. Highs 93 to 100.
WEDNESDAY NIGHT
Mostly clear. Lows 61 to 67.
THURSDAY
Mostly sunny. Highs 95 to 103.
THURSDAY NIGHT
Mostly clear. Lows 63 to 68.
FRIDAY
Mostly sunny. Highs 99 to 107.
FRIDAY NIGHT
Mostly clear. Lows 65 to 71.
SATURDAY
Mostly sunny. Hot. Highs 102 to 110.
SATURDAY NIGHT
Mostly clear. Lows 66 to 72.

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 PM PDT  7/26/2026
Monday
27 JUL 2026
ONTARIO, CA 91758 weather forecast Day 1, 0 hours 11 PM 78° 80° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   7 56% 61°
Low 71° ONTARIO, CA 91758 weather forecast Day 1, 3 hours 2 AM 74° 74° Partly Cloudy W   5 62% 60°
High 97° ONTARIO, CA 91758 weather forecast Day 1, 6 hours 5 AM 72° 72° Clear 1%

0% Thunder
( 0% severe)
NW   3 64% 59°

Clear



ONTARIO, CA 91758 weather forecast Day 1, 9 hours 8 AM 74° 74° Clear   CALM 62% 60°
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 11 AM 87° 86° Clear 1%

0% Thunder
( 0% severe)
SW   6 39% 59°
ONTARIO, CA 91758 weather forecast Day 1, 15 hours 2 PM 94° 93° Clear WSW   12 30% 58°
ONTARIO, CA 91758 weather forecast Day 1, 18 hours 5 PM 93° 92° Clear 1%

0% Thunder
( 0% severe)
WSW   13 30% 57°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 8 PM 85° 85° Clear WSW   10 41% 59°
Tuesday
28 JUL 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 11 PM 77° 79° Clear 0%

0% Thunder
( 0% severe)
WSW   8 56% 60°
Low 69° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 2 AM 73° 73° Clear WSW   5 64% 60°
High 97° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 5 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
SSW   1 71% 60°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 8 AM 73° 73° Clear   CALM 64% 60°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 11 AM 86° 85° Clear 0%

0% Thunder
( 0% severe)
SW   6 37% 57°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 2 PM 94° 92° Partly Cloudy WSW   10 28% 56°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 5 PM 93° 91° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   14 28% 55°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 8 PM 84° 83° Clear WSW   10 40% 57°

ONTARIO, CA extended weather forecast

Wednesday
29 JUL 2026
Thursday
30 JUL 2026
Friday
31 JUL 2026
Saturday
1 AUG 2026
Sunday
2 AUG 2026
Low 65° Low 65° Low 68° Low 70° Low 71°
High 96° High 100° High 103° High 108° High 98°
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
Clear
1% Rain
Clear
Clear
Partly Cloudy
1% Rain
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