ONTARIO, CA 91761 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

8:53 PM PDT APR 30, 2025
Few Clouds
61°F
Feels Like: 60°F
Dewpoint: 52°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: WSW at 8 mph
Pressure: 29.95 inches
Last 72 hours

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ONTARIO, CA 91761
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear this evening...becoming mostly cloudy. Patchy fog overnight. Lows 46 to 53. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 73 to 78. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 46 to 52. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
FRIDAY
Mostly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 76 to 81. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 46 to 53. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
SATURDAY
Cloudy in the morning...becoming partly cloudy. Patchy fog in the morning. Highs 71 to 75.
SATURDAY NIGHT
Partly cloudy in the evening...becoming cloudy. A slight chance of showers. Lows 40 to 49.
SUNDAY
Cloudy in the morning...becoming mostly cloudy. A chance of showers and a slight chance of thunderstorms. Cooler. Highs 57 to 63.
SUNDAY NIGHT
Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers overnight. Lows 41 to 49.
MONDAY
Mostly cloudy. A slight chance of showers in the morning. Highs 59 to 64.
MONDAY NIGHT
Partly cloudy. Lows 42 to 50.
TUESDAY
Partly cloudy. Warmer. Highs 69 to 73.
TUESDAY NIGHT
Partly cloudy. Lows 45 to 52.

Visible Weather Satellite
ONTARIO, CA 91761
Infrared Weather Satellite
ONTARIO, CA 91761
NEXRAD Weather Radar
ONTARIO, CA 91761

ONTARIO, CA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  4/30/2025
Thursday
1 MAY 2025
ONTARIO, CA 91761 weather forecast Day 1, 0 hours 11 PM 58° 58° Partly Cloudy 0%

0% Thunder
( 1% severe)
WSW   5 80% 52°
Low 54° ONTARIO, CA 91761 weather forecast Day 1, 3 hours 2 AM 56° 56° Mostly Cloudy WSW   2 86% 52°
High 75° ONTARIO, CA 91761 weather forecast Day 1, 6 hours 5 AM 55° 55° Mostly Cloudy 1%

0% Thunder
( 1% severe)
WSW   1 90% 52°

Mostly Cloudy



ONTARIO, CA 91761 weather forecast Day 1, 9 hours 8 AM 57° 58° Mostly Cloudy SSW   1 83% 52°
ONTARIO, CA 91761 weather forecast Day 1, 12 hours 11 AM 64° 65° Partly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 15% severe)
SW   5 65% 52°
ONTARIO, CA 91761 weather forecast Day 1, 15 hours 2 PM 72° 72° Partly Cloudy WSW   12 48% 51°
ONTARIO, CA 91761 weather forecast Day 1, 18 hours 5 PM 72° 72° Partly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 9% severe)
WSW   13 49% 52°
ONTARIO, CA 91761 weather forecast Day 1, 21 hours 8 PM 64° 63° Partly Cloudy WSW   10 63% 51°
Friday
2 MAY 2025
ONTARIO, CA 91761 weather forecast Day 2, 0 hours 11 PM 59° 58° Clear 2%

0% Thunder
( 1% severe)
WSW   6 78% 52°
Low 54° ONTARIO, CA 91761 weather forecast Day 2, 3 hours 2 AM 56° 56° Mostly Cloudy WSW   2 90% 53°
High 77° ONTARIO, CA 91761 weather forecast Day 2, 6 hours 5 AM 55° 55° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 93% 53°

Mostly Cloudy



ONTARIO, CA 91761 weather forecast Day 2, 9 hours 8 AM 57° 58° Mostly Cloudy   CALM 86% 53°
ONTARIO, CA 91761 weather forecast Day 2, 12 hours 11 AM 66° 66° Partly Cloudy 5%

0% Thunder
( 6% severe)
SW   5 63% 53°
ONTARIO, CA 91761 weather forecast Day 2, 15 hours 2 PM 75° 75° Partly Cloudy WSW   12 46% 53°
ONTARIO, CA 91761 weather forecast Day 2, 18 hours 5 PM 75° 75° Partly Cloudy 2%

0% Thunder
( 2% severe)
WSW   13 48% 54°
ONTARIO, CA 91761 weather forecast Day 2, 21 hours 8 PM 66° 66° Clear SW   9 65% 54°

ONTARIO, CA extended weather forecast

BAD DAY
BAD DATE
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Low 58° Low 58° Low 53° Low 52° Low 53°
High 78° High 70° High 61° High 70° High 74°
ONTARIO, CA 91761 weather forecast Day 3 ONTARIO, CA 91761 weather forecast Day 4 ONTARIO, CA 91761 weather forecast Day 5 ONTARIO, CA 91761 weather forecast Day 6 ONTARIO, CA 91761 weather forecast Day 7
Mostly Cloudy
17% Rain
Overcast
15% Rain
Overcast
38% Rain
Overcast
41% Rain
Partly Cloudy
11% Rain
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