MONTCLAIR, CA 91763 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

10:53 AM PDT AUG 26, 2025
Few Clouds
82°F
Feels Like: 83°F
Dewpoint: 63°F
Rel. Hum.: 53%
Visibility: 10 miles
Wind: W at 7 mph
Pressure: 30.00 inches
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MONTCLAIR, CA 91763
Weather Forecast

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TODAY
Partly cloudy. A chance of showers and thunderstorms this afternoon. Highs 89 to 95. Areas of winds west to 10 mph... Becoming 10 to 15 mph this afternoon. Chance of measurable precipitation 50 percent.
TONIGHT
Mostly clear. Lows 61 to 67. Areas of winds west to 10 mph in the evening becoming light.
WEDNESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs 90 to 96. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. Chance of measurable precipitation 20 percent.
WEDNESDAY NIGHT
Partly cloudy. Lows 61 to 66. Areas of winds west 10 to 15 mph in the evening becoming light.
THURSDAY
Partly cloudy. Highs 89 to 95. Light winds becoming west 10 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy. Lows 63 to 69.
FRIDAY
Partly cloudy. Highs 90 to 96.
FRIDAY NIGHT
Mostly clear. Lows 63 to 68.
SATURDAY
Mostly sunny. Highs 92 to 98.
SATURDAY NIGHT
Mostly clear. Lows 64 to 69.
SUNDAY
Mostly sunny. Highs 93 to 100.
SUNDAY NIGHT
Clear. Lows 64 to 69.
LABOR DAY
Mostly sunny. Highs 93 to 99.

Visible Weather Satellite
MONTCLAIR, CA 91763
Infrared Weather Satellite
MONTCLAIR, CA 91763
NEXRAD Weather Radar
MONTCLAIR, CA 91763

ONTARIO, CA 3 hourly weather forecast

weather forecast created  5:00 AM PDT  8/26/2025
Tuesday
26 AUG 2025
MONTCLAIR, CA 91763 weather forecast Day 1, 12 hours 11 AM 82° 83° Clear 9%

0% Thunder
( 19% severe)
SW   6 53% 63°
High 91° MONTCLAIR, CA 91763 weather forecast Day 1, 15 hours 2 PM 90° 90° Clear WSW   10 38% 61°
Clear



MONTCLAIR, CA 91763 weather forecast Day 1, 18 hours 5 PM 89° 89° Clear 3%

0% Thunder
( 8% severe)
WSW   13 38% 60°
MONTCLAIR, CA 91763 weather forecast Day 1, 21 hours 8 PM 79° 80° Clear WSW   9 54% 61°
Wednesday
27 AUG 2025
MONTCLAIR, CA 91763 weather forecast Day 2, 0 hours 11 PM 73° 73° Clear 0%

0% Thunder
( 0% severe)
WSW   7 68% 62°
Low 67° MONTCLAIR, CA 91763 weather forecast Day 2, 3 hours 2 AM 70° 70° Clear WSW   5 76% 62°
High 94° MONTCLAIR, CA 91763 weather forecast Day 2, 6 hours 5 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
NNE   2 78% 62°

Clear



MONTCLAIR, CA 91763 weather forecast Day 2, 9 hours 8 AM 71° 71° Clear SE   1 73% 62°
MONTCLAIR, CA 91763 weather forecast Day 2, 12 hours 11 AM 82° 82° Clear 1%

0% Thunder
( 2% severe)
SW   3 47% 60°
MONTCLAIR, CA 91763 weather forecast Day 2, 15 hours 2 PM 91° 89° Clear WSW   9 30% 55°
MONTCLAIR, CA 91763 weather forecast Day 2, 18 hours 5 PM 89° 87° Partly Cloudy 2%

0% Thunder
( 1% severe)
WSW   13 32% 55°
MONTCLAIR, CA 91763 weather forecast Day 2, 21 hours 8 PM 78° 79° Partly Cloudy WSW   9 48% 57°
Thursday
28 AUG 2025
MONTCLAIR, CA 91763 weather forecast Day 3, 0 hours 11 PM 72° 72° Mostly Cloudy 4%

0% Thunder
( 0% severe)
WSW   6 64% 59°
Low 66° MONTCLAIR, CA 91763 weather forecast Day 3, 3 hours 2 AM 70° 70° Mostly Cloudy SW   3 66% 58°
High 92° MONTCLAIR, CA 91763 weather forecast Day 3, 6 hours 5 AM 69° 69° Mostly Cloudy 8%

0% Thunder
( 0% severe)
N   2 66% 57°

Mostly Cloudy



MONTCLAIR, CA 91763 weather forecast Day 3, 9 hours 8 AM 71° 71° Mostly Cloudy E   2 61% 57°
MONTCLAIR, CA 91763 weather forecast Day 3, 15 hours 11 AM 80° 80° Partly Cloudy 8%

0% Thunder
( 1% severe)
SW   3 41% 54°
MONTCLAIR, CA 91763 weather forecast Day 3, 18 hours 2 PM 89° 86° Partly Cloudy SW   8 27% 51°
MONTCLAIR, CA 91763 weather forecast Day 3, 21 hours 5 PM 88° 86° Mostly Cloudy     WSW   12 30% 53°

ONTARIO, CA extended weather forecast

Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Tuesday
2 SEP 2025
Low 71° Low 71° Low 71° Low 70° Low 67°
High 99° High 98° High 98° High 98° High 90°
MONTCLAIR, CA 91763 weather forecast Day 4 MONTCLAIR, CA 91763 weather forecast Day 5 MONTCLAIR, CA 91763 weather forecast Day 6 MONTCLAIR, CA 91763 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
10% Rain
Clear
1% Rain
Clear
2% Rain
Clear
2% Rain
Clear
6% Rain
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