SAN DIMAS, CA 91773 Weather Forecast & Current Conditions

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ONTARIO, CA
Current Weather

8:53 PM PDT JUN 8, 2026
Scattered Clouds
68°F
Feels Like: 68°F
Dewpoint: 55°F
Rel. Hum.: 63%
Visibility: 10 miles
Wind: WSW at 9 mph
Pressure: 29.90 inches
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SAN DIMAS, CA 91773
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the mid 50s to around 60.
TUESDAY
Areas of low clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.
TUESDAY NIGHT
Mostly clear. Lows around 60.
WEDNESDAY
Partly cloudy in the morning then sunny. Highs in the 80s to around 90.
WEDNESDAY NIGHT
Mostly clear. Lows around 60.
THURSDAY
Areas of low clouds and fog in the morning then sunny. Highs in the 80s to around 90.
THURSDAY NIGHT
Mostly clear in the evening then partly cloudy. Lows in the lower to mid 60s.
FRIDAY
Partly cloudy in the morning then sunny. Highs in the mid 80s to lower 90s.
FRIDAY NIGHT
Mostly clear. Lows in the lower to mid 60s.
SATURDAY
Partly cloudy in the morning then sunny. Highs in the mid 80s to lower 90s.
SATURDAY NIGHT
Mostly clear. Lows in the lower to mid 60s.
SUNDAY
Sunny. Highs in the mid to upper 80s.
SUNDAY NIGHT
Mostly clear. Lows in the lower to mid 60s.

Visible Weather Satellite
SAN DIMAS, CA 91773
Infrared Weather Satellite
SAN DIMAS, CA 91773
NEXRAD Weather Radar
SAN DIMAS, CA 91773

ONTARIO, CA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  6/ 8/2026
Tuesday
9 JUN 2026
SAN DIMAS, CA 91773 weather forecast Day 1, 0 hours 11 PM 64° 64° Clear 0%

0% Thunder
( 0% severe)
WSW   7 73% 55°
Low 58° SAN DIMAS, CA 91773 weather forecast Day 1, 3 hours 2 AM 61° 62° Clear W   3 78% 54°
High 86° SAN DIMAS, CA 91773 weather forecast Day 1, 6 hours 5 AM 59° 60° Clear 0%

0% Thunder
( 0% severe)
  CALM 83% 54°

Clear



SAN DIMAS, CA 91773 weather forecast Day 1, 9 hours 8 AM 63° 64° Partly Cloudy   CALM 75% 55°
SAN DIMAS, CA 91773 weather forecast Day 1, 12 hours 11 AM 74° 74° Clear 0%

0% Thunder
( 0% severe)
SW   6 53% 56°
SAN DIMAS, CA 91773 weather forecast Day 1, 15 hours 2 PM 82° 82° Clear WSW   10 41% 56°
SAN DIMAS, CA 91773 weather forecast Day 1, 18 hours 5 PM 82° 82° Clear 0%

0% Thunder
( 0% severe)
WSW   12 41% 56°
SAN DIMAS, CA 91773 weather forecast Day 1, 21 hours 8 PM 75° 75° Clear WSW   9 52% 56°
Wednesday
10 JUN 2026
SAN DIMAS, CA 91773 weather forecast Day 2, 0 hours 11 PM 68° 68° Clear 0%

0% Thunder
( 0% severe)
W   6 65% 56°
Low 61° SAN DIMAS, CA 91773 weather forecast Day 2, 3 hours 2 AM 64° 66° Clear W   2 78% 57°
High 91° SAN DIMAS, CA 91773 weather forecast Day 2, 6 hours 5 AM 63° 64° Clear 0%

0% Thunder
( 0% severe)
  CALM 81% 57°

Clear



SAN DIMAS, CA 91773 weather forecast Day 2, 9 hours 8 AM 66° 66° Partly Cloudy   CALM 73% 57°
SAN DIMAS, CA 91773 weather forecast Day 2, 12 hours 11 AM 79° 80° Clear 0%

0% Thunder
( 0% severe)
SW   6 49% 58°
SAN DIMAS, CA 91773 weather forecast Day 2, 15 hours 2 PM 88° 87° Clear WSW   10 36% 58°
SAN DIMAS, CA 91773 weather forecast Day 2, 18 hours 5 PM 88° 87° Clear 0%

0% Thunder
( 0% severe)
WSW   13 35% 57°
SAN DIMAS, CA 91773 weather forecast Day 2, 21 hours 8 PM 77° 79° Clear WSW   12 54% 59°

ONTARIO, CA extended weather forecast

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Low 62° Low 63° Low 65° Low 66° Low 63°
High 89° High 92° High 96° High 94° High 92°
SAN DIMAS, CA 91773 weather forecast Day 3 SAN DIMAS, CA 91773 weather forecast Day 4 SAN DIMAS, CA 91773 weather forecast Day 5 SAN DIMAS, CA 91773 weather forecast Day 6 SAN DIMAS, CA 91773 weather forecast Day 7
Partly Cloudy
Partly Cloudy
Clear
Partly Cloudy
1% Rain
Partly Cloudy
1% Rain
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