FONTANA, CA 92336 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

9:53 PM PDT JUL 20, 2025
Clear
66°F
Feels Like: 66°F
Dewpoint: 57°F
Rel. Hum.: 73%
Visibility: 10 miles
Wind: WSW at 10 mph
Pressure: 29.97 inches
Last 72 hours

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FONTANA, CA 92336
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear this evening...becoming partly cloudy. Lows 52 to 61. Areas of winds west 10 mph this evening becoming light.
MONDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 83 to 90. Light winds becoming southwest 10 to 15 mph in the afternoon.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 48 to 58. Areas of winds southwest 10 mph in the evening becoming light.
TUESDAY
Mostly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 82 to 89. Light winds becoming southwest 10 to 15 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 48 to 58. Areas of winds southwest 10 to 15 mph in the evening becoming light.
WEDNESDAY
Mostly cloudy with patchy fog in the morning... Becoming sunny. Highs 84 to 90.
WEDNESDAY NIGHT
Mostly clear. Lows 49 to 58.
THURSDAY
Mostly sunny. Highs 85 to 91.
THURSDAY NIGHT
Mostly clear. Lows 49 to 58.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 85 to 91.
FRIDAY NIGHT
Mostly clear. Lows 49 to 58.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 84 to 90.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 50 to 58.

Visible Weather Satellite
FONTANA, CA 92336
Infrared Weather Satellite
FONTANA, CA 92336
NEXRAD Weather Radar
FONTANA, CA 92336

ONTARIO, CA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  7/20/2025
Monday
21 JUL 2025
FONTANA, CA 92336 weather forecast Day 1, 0 hours 11 PM 67° 67° Clear 0%

0% Thunder
( 0% severe)
W   10 75% 59°
Low 61° FONTANA, CA 92336 weather forecast Day 1, 3 hours 2 AM 64° 64° Partly Cloudy W   6 84% 59°
High 84° FONTANA, CA 92336 weather forecast Day 1, 6 hours 5 AM 62° 63° Mostly Cloudy 1%

0% Thunder
( 0% severe)
WSW   3 93% 60°

Decreasing Clouds



FONTANA, CA 92336 weather forecast Day 1, 9 hours 8 AM 63° 64° Mostly Cloudy WSW   3 90% 60°
FONTANA, CA 92336 weather forecast Day 1, 12 hours 11 AM 72° 72° Clear 0%

0% Thunder
( 0% severe)
SW   6 68% 61°
FONTANA, CA 92336 weather forecast Day 1, 15 hours 2 PM 82° 82° Clear WSW   10 44% 58°
FONTANA, CA 92336 weather forecast Day 1, 18 hours 5 PM 81° 81° Clear 0%

0% Thunder
( 0% severe)
WSW   13 47% 59°
FONTANA, CA 92336 weather forecast Day 1, 21 hours 8 PM 71° 71° Clear WSW   13 68% 60°
Tuesday
22 JUL 2025
FONTANA, CA 92336 weather forecast Day 2, 0 hours 11 PM 65° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   10 84% 60°
Low 60° FONTANA, CA 92336 weather forecast Day 2, 3 hours 2 AM 62° 62° Mostly Cloudy W   6 93% 60°
High 84° FONTANA, CA 92336 weather forecast Day 2, 6 hours 5 AM 61° 62° Mostly Cloudy 1%

0% Thunder
( 0% severe)
WSW   3 97% 60°

Decreasing Clouds



FONTANA, CA 92336 weather forecast Day 2, 9 hours 8 AM 62° 63° Mostly Cloudy SSW   2 93% 60°
FONTANA, CA 92336 weather forecast Day 2, 12 hours 11 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
SW   5 71% 60°
FONTANA, CA 92336 weather forecast Day 2, 15 hours 2 PM 81° 81° Clear WSW   9 44% 57°
FONTANA, CA 92336 weather forecast Day 2, 18 hours 5 PM 81° 81° Clear 0%

0% Thunder
( 0% severe)
WSW   13 46% 58°
FONTANA, CA 92336 weather forecast Day 2, 21 hours 8 PM 72° 72° Clear WSW   12 64% 59°

ONTARIO, CA extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
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BAD DAY
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Low 63° Low 62° Low 61° Low 62° Low 63°
High 85° High 87° High 91° High 90° High 89°
FONTANA, CA 92336 weather forecast Day 3 FONTANA, CA 92336 weather forecast Day 4 FONTANA, CA 92336 weather forecast Day 5 FONTANA, CA 92336 weather forecast Day 6 FONTANA, CA 92336 weather forecast Day 7
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
Clear
2% Rain
Clear
2% Rain
Clear
2% Rain
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