RIALTO, CA 92376 Weather Forecast & Current Conditions

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RIVERSIDE, CA
Current Weather

8:53 AM PDT JUN 18, 2026
Overcast
66°F
Feels Like: 66°F
Dewpoint: 55°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: Variable at 3 mph
Pressure: 29.98 inches
Last 72 hours

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RIALTO, CA 92376
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy with patchy fog this morning...becoming sunny. Highs 78 to 85. Areas of winds south to 10 mph becoming west with gusts to 25 mph this afternoon.
TONIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 52 to 57. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
JUNETEENTH
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 78 to 85. Areas of winds west to 10 mph... Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 50 to 55. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 77 to 85. Areas of winds west to 10 mph... Becoming 10 to 15 mph in the afternoon.
SATURDAY NIGHT
Mostly clear. Lows 50 to 56.
SUNDAY
Partly cloudy with patchy fog in the morning...becoming sunny. Highs 80 to 88.
SUNDAY NIGHT
Clear. Lows 52 to 58.
MONDAY
Mostly sunny. Highs 86 to 94.
MONDAY NIGHT
Clear. Lows 56 to 62.
TUESDAY
Mostly sunny. Highs 90 to 99.
TUESDAY NIGHT
Clear. Lows 61 to 66.
WEDNESDAY
Mostly sunny. Highs 92 to 100.

Visible Weather Satellite
RIALTO, CA 92376
Infrared Weather Satellite
RIALTO, CA 92376
NEXRAD Weather Radar
RIALTO, CA 92376

RIVERSIDE, CA 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/17/2026
Thursday
18 JUN 2026
RIALTO, CA 92376 weather forecast Day 1, 0 hours 11 PM 66° 66° Clear 0%

0% Thunder
( 0% severe)
W   9 70% 56°
Low 60° RIALTO, CA 92376 weather forecast Day 1, 3 hours 2 AM 62° 62° Mostly Cloudy W   5 90% 59°
High 82° RIALTO, CA 92376 weather forecast Day 1, 6 hours 5 AM 61° 62° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 58°

Decreasing Clouds



RIALTO, CA 92376 weather forecast Day 1, 9 hours 8 AM 62° 63° Mostly Cloudy   CALM 87% 58°
RIALTO, CA 92376 weather forecast Day 1, 12 hours 11 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   6 66% 58°
RIALTO, CA 92376 weather forecast Day 1, 15 hours 2 PM 78° 79° Clear W   10 50% 58°
RIALTO, CA 92376 weather forecast Day 1, 18 hours 5 PM 78° 79° Clear 0%

0% Thunder
( 0% severe)
W   14 48% 57°
RIALTO, CA 92376 weather forecast Day 1, 21 hours 8 PM 71° 71° Clear W   12 59% 56°
Friday
19 JUN 2026
RIALTO, CA 92376 weather forecast Day 2, 0 hours 11 PM 65° 65° Clear 0%

0% Thunder
( 0% severe)
W   12 73% 56°
Low 57° RIALTO, CA 92376 weather forecast Day 2, 3 hours 2 AM 61° 62° Partly Cloudy W   3 87% 57°
High 82° RIALTO, CA 92376 weather forecast Day 2, 6 hours 5 AM 60° 61° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 57°

Decreasing Clouds



RIALTO, CA 92376 weather forecast Day 2, 9 hours 8 AM 62° 63° Mostly Cloudy   CALM 87% 58°
RIALTO, CA 92376 weather forecast Day 2, 12 hours 11 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   6 63% 57°
RIALTO, CA 92376 weather forecast Day 2, 15 hours 2 PM 78° 79° Clear W   12 43% 54°
RIALTO, CA 92376 weather forecast Day 2, 18 hours 5 PM 78° 79° Clear 0%

0% Thunder
( 0% severe)
W   14 42% 53°
RIALTO, CA 92376 weather forecast Day 2, 21 hours 8 PM 70° 70° Clear W   13 57% 54°

RIVERSIDE, CA extended weather forecast

Saturday
20 JUN 2026
Sunday
21 JUN 2026
Monday
22 JUN 2026
Tuesday
23 JUN 2026
Wednesday
24 JUN 2026
Low 57° Low 57° Low 59° Low 59° Low 63°
High 81° High 85° High 88° High 95° High 101°
RIALTO, CA 92376 weather forecast Day 3 RIALTO, CA 92376 weather forecast Day 4 RIALTO, CA 92376 weather forecast Day 5 RIALTO, CA 92376 weather forecast Day 6 RIALTO, CA 92376 weather forecast Day 7
Clear
7% Rain
Clear
4% Rain
Clear
2% Rain
Clear
1% Rain
Clear
1% Rain
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