Weather Forecast and Conditions for Alta Loma, Rancho Cucamonga, California - The Weather Channel | Weather.com
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77° Clear Night
Clear
Day 99° • Night 68°
Feels Like77°
Sunrise

6:55 am

Sunset

7:01 pm

Temperature
High / Low
--/68°
Wind
3 mph
Humidity
Humidity
38%
Dew point
Dew Point
49°
Pressure
Pressure
29.98 in
UV index
UV Index
0 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 1
Moon Phase
Waxing Crescent

Hourly Weather-

Now

Clear Night Clear
77°
Rain drop 0%
N 3 mph
Subtract

Clear

  • Temperature feels like
    Feels Like77°
  • WindN 3 mph
  • Humidity
    Humidity38%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

12 am

Clear Night Clear
75°
Rain drop 0%
NNE 2 mph
Add

Clear

  • Temperature feels like
    Feels Like75°
  • WindNNE 2 mph
  • Humidity
    Humidity38%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

1 am

Clear Night Clear
74°
Rain drop 0%
N 2 mph
Add

Clear

  • Temperature feels like
    Feels Like74°
  • WindN 2 mph
  • Humidity
    Humidity39%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

2 am

Clear Night Clear
74°
Rain drop 0%
N 2 mph
Add

Clear

  • Temperature feels like
    Feels Like74°
  • WindN 2 mph
  • Humidity
    Humidity39%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Tonight

Clear Night Clear
--/68°
Rain drop 0%
Subtract

Night

68°
Clear Night
N 3 mph

A clear sky. Low 68F. Winds light and variable.

  • Humidity
    Humidity42%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:08 am
  • Moonset
    Moonset8:06 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Sunny Sunny
99°/66°
Rain drop 0%
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Day

99°
Sunny
WSW 12 mph

Sunny. High 99F. NNE winds shifting to WSW at 10 to 15 mph.

  • Humidity
    Humidity23%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:02 pm

Night

66°
Mostly Clear Night
Rain drop
1%
NNW 10 mph

A mostly clear sky. Low 66F. W winds shifting to NNE at 10 to 15 mph.

  • Humidity
    Humidity39%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:38 am
  • Moonset
    Moonset9:16 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
91°/62°
Rain drop 0%
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Day

91°
Partly Cloudy Day
WSW 12 mph

Sunshine and clouds mixed. Near record high temperatures. High 91F. E winds shifting to WSW at 10 to 15 mph.

  • Humidity
    Humidity27%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:02 pm

Night

62°
Cloudy
Rain drop
2%
WNW 10 mph

Cloudy. Low 62F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:11 am
  • Moonset
    Moonset10:29 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
90°/65°
Rain drop 2%
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Day

90°
Partly Cloudy Day
Rain drop
2%
WSW 10 mph

Sunshine and clouds mixed. Continued hot. High around 90F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity36%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:51 am
  • Sunset
    Sunset7:03 pm

Night

65°
Mostly Clear Night
NW 8 mph

Mainly clear. Low around 65F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:50 am
  • Moonset
    Moonset11:42 pm
  • Moon Phase - Day 4 Waxing Crescent
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