ONTARIO, CA 91758 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

6:53 PM PDT MAR 26, 2026
Scattered Clouds
79°F
Feels Like: 80°F
Dewpoint: 55°F
Rel. Hum.: 44%
Visibility: 10 miles
Wind: WSW at 10 mph
Pressure: 29.87 inches
Last 72 hours

Local Area Snow Depth

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ONTARIO, CA 91758
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Clear. Lows 50 to 55 in wind sheltered areas to 55 to 63 in warmer locations. Areas of winds west to 10 mph this evening becoming light.
FRIDAY
Mostly sunny in the morning...becoming partly cloudy. Highs 86 to 92. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Partly cloudy. Lows 54 to 57 in wind sheltered areas to 57 to 64 in warmer locations. Areas of winds west to 10 mph in the evening becoming light.
SATURDAY
Partly cloudy. Highs 89 to 93. Light winds becoming west 10 to 15 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy. Lows 55 to 59 in wind sheltered areas to 59 to 65 in warmer locations. Areas of winds west to 10 mph in the evening becoming light.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 88 to 93.
SUNDAY NIGHT
Mostly clear. Lows 51 to 59.
MONDAY
Partly cloudy in the morning...becoming mostly cloudy. Highs 82 to 87.
MONDAY NIGHT
Mostly cloudy in the evening...becoming partly cloudy. Lows 49 to 57.
TUESDAY
Mostly cloudy. A slight chance of showers in the afternoon. Highs 73 to 78.
TUESDAY NIGHT
Mostly cloudy with a slight chance of showers. Lows 47 to 54.
WEDNESDAY
Mostly cloudy in the morning...becoming partly cloudy. A slight chance of showers. Highs 69 to 75.
WEDNESDAY NIGHT
Partly cloudy. Lows 45 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  3/26/2026
Thursday
26 MAR 2026
ONTARIO, CA 91758 weather forecast Day 1, 12 hours 10 AM 73° 73° Clear 0%

0% Thunder
( 0% severe)
  CALM 46% 51°
High 87° ONTARIO, CA 91758 weather forecast Day 1, 15 hours 1 PM 85° 82° Clear SW   7 26% 46°
Clear



ONTARIO, CA 91758 weather forecast Day 1, 18 hours 4 PM 86° 83° Clear 0%

0% Thunder
( 0% severe)
WSW   10 27% 48°
ONTARIO, CA 91758 weather forecast Day 1, 21 hours 7 PM 75° 75° Clear W   6 45% 52°
Friday
27 MAR 2026
ONTARIO, CA 91758 weather forecast Day 2, 0 hours 10 PM 68° 68° Clear 0%

0% Thunder
( 0% severe)
SSW   1 59% 53°
Low 59° ONTARIO, CA 91758 weather forecast Day 2, 3 hours 1 AM 64° 66° Clear   CALM 67% 53°
High 89° ONTARIO, CA 91758 weather forecast Day 2, 6 hours 4 AM 61° 62° Clear 0%

0% Thunder
( 0% severe)
  CALM 72% 52°

Clear



ONTARIO, CA 91758 weather forecast Day 2, 9 hours 7 AM 63° 64° Clear   CALM 67% 52°
ONTARIO, CA 91758 weather forecast Day 2, 12 hours 10 AM 77° 78° Clear 0%

0% Thunder
( 0% severe)
SSW   1 39% 50°
ONTARIO, CA 91758 weather forecast Day 2, 15 hours 1 PM 87° 84° Partly Cloudy WSW   8 24% 46°
ONTARIO, CA 91758 weather forecast Day 2, 18 hours 4 PM 86° 83° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WSW   10 23% 44°
ONTARIO, CA 91758 weather forecast Day 2, 21 hours 7 PM 76° 78° Partly Cloudy WSW   6 36% 47°
Saturday
28 MAR 2026
ONTARIO, CA 91758 weather forecast Day 3, 0 hours 10 PM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   2 49% 49°
Low 60° ONTARIO, CA 91758 weather forecast Day 3, 3 hours 1 AM 65° 65° Partly Cloudy NNE   1 54% 48°
High 91° ONTARIO, CA 91758 weather forecast Day 3, 6 hours 4 AM 63° 64° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 52% 45°

Partly Cloudy



ONTARIO, CA 91758 weather forecast Day 3, 9 hours 7 AM 65° 65° Mostly Cloudy   CALM 45% 43°
ONTARIO, CA 91758 weather forecast Day 3, 15 hours 10 AM 80° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 24% 40°
ONTARIO, CA 91758 weather forecast Day 3, 18 hours 1 PM 90° 86° Partly Cloudy SW   7 14% 34°
ONTARIO, CA 91758 weather forecast Day 3, 21 hours 4 PM 90° 86° Partly Cloudy     WSW   10 14% 35°

ONTARIO, CA extended weather forecast

Sunday
29 MAR 2026
Monday
30 MAR 2026
Tuesday
31 MAR 2026
Wednesday
1 APR 2026
Thursday
2 APR 2026
Low 60° Low 58° Low 57° Low 55° Low 53°
High 89° High 80° High 73° High 69° High 80°
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
2% Rain
Mostly Cloudy
4% Rain
Overcast
16% Rain
Overcast
44% Rain
Partly Cloudy
19% Rain
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