FONTANA, CA 92336 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

8:53 AM PDT MAY 27, 2026
Broken Clouds
63°F
Feels Like: 63°F
Dewpoint: 46°F
Rel. Hum.: 54%
Visibility: 10 miles
Wind: Variable at 5 mph
Pressure: 29.85 inches
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FONTANA, CA 92336
Weather Forecast

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Snow Depth pages
TODAY
Patchy fog this morning. Cloudy with a slight chance of rain this morning, then partly cloudy this afternoon. Highs 62 to 68. Areas of winds south 10 to 15 mph. Gusts to 25 mph...becoming 30 mph this afternoon. Chance of measurable precipitation 20 percent.
TONIGHT
Partly cloudy in the evening, then mostly cloudy with a slight chance of rain overnight. Patchy fog overnight. Lows 43 to 52. Areas of winds southwest 10 to 15 mph with gusts to 25 mph...becoming to 10 mph overnight. Chance of measurable precipitation 20 percent.
THURSDAY
Partly cloudy. A slight chance of rain in the morning. Patchy fog in the morning. Highs 65 to 70. Areas of winds southwest to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. Chance of measurable precipitation 20 percent.
THURSDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 46 to 53. Areas of winds southwest 10 to 15 mph with gusts to 30 mph becoming west overnight.
FRIDAY
Mostly cloudy with patchy fog in the morning...becoming partly cloudy. Highs 70 to 76. Areas of winds southwest to 10 mph becoming west with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Patchy fog overnight. Lows 48 to 54.
SATURDAY
Patchy fog in the morning. Mostly sunny. Highs 77 to 83.
SATURDAY NIGHT
Clear. Lows 51 to 57.
SUNDAY
Mostly sunny. Highs 82 to 88.
SUNDAY NIGHT
Clear. Lows 53 to 59.
MONDAY
Mostly sunny. Highs 86 to 93.
MONDAY NIGHT
Mostly clear. Lows 55 to 61.
TUESDAY
Mostly sunny. Highs 88 to 94.

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 AM PDT  5/27/2026
Wednesday
27 MAY 2026
FONTANA, CA 92336 weather forecast Day 1, 12 hours 11 AM 59° 58° Mostly Cloudy 4%

0% Thunder
( 3% severe)
S   7 67% 48°
High 65° FONTANA, CA 92336 weather forecast Day 1, 15 hours 2 PM 64° 63° Partly Cloudy SW   13 50% 45°
Partly Cloudy



FONTANA, CA 92336 weather forecast Day 1, 18 hours 5 PM 63° 61° Partly Cloudy 12%
RAIN
<.01 in
0% Thunder
( 2% severe)
SW   14 52% 45°
FONTANA, CA 92336 weather forecast Day 1, 21 hours 8 PM 59° 56° Partly Cloudy WSW   14 60% 45°
Thursday
28 MAY 2026
FONTANA, CA 92336 weather forecast Day 2, 0 hours 11 PM 57° 54° Partly Cloudy 7%

0% Thunder
( 2% severe)
WSW   12 72% 48°
Low 52° FONTANA, CA 92336 weather forecast Day 2, 3 hours 2 AM 55° 54° Mostly Cloudy SSW   6 83% 50°
High 70° FONTANA, CA 92336 weather forecast Day 2, 6 hours 5 AM 53° 53° Mostly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 93% 51°

Partly Cloudy



FONTANA, CA 92336 weather forecast Day 2, 9 hours 8 AM 56° 56° Partly Cloudy   CALM 80% 50°
FONTANA, CA 92336 weather forecast Day 2, 12 hours 11 AM 61° 60° Partly Cloudy 4%

0% Thunder
( 0% severe)
SW   7 58% 46°
FONTANA, CA 92336 weather forecast Day 2, 15 hours 2 PM 67° 67° Partly Cloudy WSW   13 43% 44°
FONTANA, CA 92336 weather forecast Day 2, 18 hours 5 PM 66° 66° Partly Cloudy 0%

0% Thunder
( 3% severe)
WSW   14 47% 45°
FONTANA, CA 92336 weather forecast Day 2, 21 hours 8 PM 61° 59° Mostly Cloudy WSW   15 60% 47°
Friday
29 MAY 2026
FONTANA, CA 92336 weather forecast Day 3, 0 hours 11 PM 58° 55° Partly Cloudy 3%

0% Thunder
( 2% severe)
WSW   14 72% 49°
Low 53° FONTANA, CA 92336 weather forecast Day 3, 3 hours 2 AM 56° 54° Partly Cloudy WSW   7 83% 51°
High 75° FONTANA, CA 92336 weather forecast Day 3, 6 hours 5 AM 55° 55° Mostly Cloudy 0%

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

Decreasing Clouds



FONTANA, CA 92336 weather forecast Day 3, 9 hours 8 AM 57° 58° Partly Cloudy   CALM 86% 53°
FONTANA, CA 92336 weather forecast Day 3, 15 hours 11 AM 63° 63° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   7 62% 50°
FONTANA, CA 92336 weather forecast Day 3, 18 hours 2 PM 71° 71° Clear WSW   10 44% 48°
FONTANA, CA 92336 weather forecast Day 3, 21 hours 5 PM 71° 71° Clear     WSW   14 49% 51°

ONTARIO, CA extended weather forecast

Saturday
30 MAY 2026
Sunday
31 MAY 2026
Monday
1 JUN 2026
Tuesday
2 JUN 2026
Wednesday
3 JUN 2026
Low 57° Low 59° Low 60° Low 60° Low 63°
High 82° High 85° High 89° High 91° High 93°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
4% Rain
Partly Cloudy
3% Rain
Partly Cloudy
1% Rain
Clear
2% Rain
Clear
2% Rain
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