Hourly Weather Forecast - Alta Loma, CA

12 AM
59°F
90%
6mph
SSW
Rain Showers
Humidity
77%
Feels like
59°F
Dew Point
51°F
1 AM
59°F
90%
5mph
S
Rain Showers
Humidity
76%
Feels like
59°F
Dew Point
51°F
2 AM
59°F
90%
5mph
S
Rain Showers
Humidity
76%
Feels like
59°F
Dew Point
51°F
3 AM
59°F
90%
5mph
SSW
Light Rain
Humidity
77%
Feels like
59°F
Dew Point
52°F
4 AM
59°F
90%
4mph
SSW
Light Rain
Humidity
78%
Feels like
59°F
Dew Point
52°F
5 AM
59°F
90%
4mph
SSW
Light Rain
Humidity
80%
Feels like
59°F
Dew Point
53°F
6 AM
60°F
90%
5mph
S
Light Rain
Humidity
78%
Feels like
60°F
Dew Point
54°F
6:54 AM
7 AM
62°F
90%
5mph
S
Light Rain
Humidity
81%
Feels like
62°F
Dew Point
56°F
8 AM
62°F
100%
5mph
S
Light Rain
Humidity
86%
Feels like
62°F
Dew Point
58°F
9 AM
61°F
100%
6mph
S
Light Rain
Humidity
92%
Feels like
61°F
Dew Point
59°F
10 AM
59°F
100%
6mph
S
Rain
Humidity
95%
Feels like
59°F
Dew Point
58°F
11 AM
59°F
100%
6mph
SSW
Rain
Humidity
94%
Feels like
59°F
Dew Point
57°F
12 PM
58°F
100%
7mph
SSW
Rain
Humidity
91%
Feels like
58°F
Dew Point
55°F
1 PM
58°F
90%
8mph
SW
Rain Showers
Humidity
90%
Feels like
58°F
Dew Point
55°F
2 PM
58°F
80%
8mph
SW
80% Chance Rain Showers
Humidity
90%
Feels like
58°F
Dew Point
55°F
3 PM
56°F
80%
8mph
SW
80% Chance Rain Showers
Humidity
91%
Feels like
56°F
Dew Point
54°F
4 PM
55°F
80%
7mph
SSW
80% Chance Rain Showers
Humidity
93%
Feels like
55°F
Dew Point
53°F
4:47 PM
5 PM
54°F
80%
7mph
SSW
80% Chance Rain Showers
Humidity
88%
Feels like
54°F
Dew Point
51°F
6 PM
55°F
80%
6mph
SSW
80% Chance Rain Showers
Humidity
81%
Feels like
55°F
Dew Point
50°F
7 PM
56°F
70%
6mph
SSW
70% Chance Rain Showers
Humidity
77%
Feels like
56°F
Dew Point
49°F
8 PM
56°F
60%
6mph
SSW
60% Chance Rain Showers
Humidity
75%
Feels like
56°F
Dew Point
48°F
9 PM
56°F
60%
6mph
S
60% Chance Rain Showers
Humidity
75%
Feels like
56°F
Dew Point
49°F
10 PM
56°F
60%
5mph
S
60% Chance Rain Showers
Humidity
77%
Feels like
56°F
Dew Point
49°F
11 PM
56°F
60%
5mph
S
60% Chance Rain Showers
Humidity
78%
Feels like
56°F
Dew Point
50°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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