Hourly Weather Forecast - Alta Loma, CA

12 AM
63°F
0%
3mph
NNE
Clear
Humidity
46%
Feels like
63°F
Dew Point
42°F
1 AM
62°F
0%
3mph
NNE
Clear
Humidity
47%
Feels like
62°F
Dew Point
42°F
2 AM
62°F
0%
3mph
NNE
Clear
Humidity
48%
Feels like
62°F
Dew Point
42°F
3 AM
61°F
0%
3mph
NE
Clear
Humidity
48%
Feels like
61°F
Dew Point
42°F
4 AM
61°F
0%
3mph
NE
Clear
Humidity
49%
Feels like
61°F
Dew Point
42°F
5 AM
60°F
0%
3mph
NE
Clear
Humidity
52%
Feels like
60°F
Dew Point
43°F
6 AM
62°F
0%
3mph
NNE
Clear
Humidity
51%
Feels like
62°F
Dew Point
44°F
6:51 AM
7 AM
66°F
0%
2mph
NNE
Sunny
Humidity
49%
Feels like
66°F
Dew Point
46°F
8 AM
71°F
0%
2mph
NE
Mostly Sunny
Humidity
45%
Feels like
71°F
Dew Point
48°F
9 AM
74°F
0%
1mph
E
Mostly Sunny
Humidity
42%
Feels like
74°F
Dew Point
49°F
10 AM
76°F
0%
1mph
SE
Partly Cloudy
Humidity
39%
Feels like
76°F
Dew Point
49°F
11 AM
77°F
0%
2mph
S
Mostly Sunny
Humidity
36%
Feels like
77°F
Dew Point
49°F
12 PM
78°F
0%
3mph
SSW
Mostly Sunny
Humidity
35%
Feels like
78°F
Dew Point
48°F
1 PM
79°F
0%
3mph
SSW
Sunny
Humidity
34%
Feels like
79°F
Dew Point
48°F
2 PM
79°F
0%
4mph
SW
Sunny
Humidity
35%
Feels like
79°F
Dew Point
49°F
3 PM
76°F
0%
4mph
SW
Sunny
Humidity
39%
Feels like
76°F
Dew Point
49°F
4 PM
72°F
0%
5mph
SW
Sunny
Humidity
45%
Feels like
72°F
Dew Point
50°F
4:43 PM
5 PM
69°F
0%
4mph
WSW
Clear
Humidity
50%
Feels like
69°F
Dew Point
49°F
6 PM
66°F
0%
4mph
WSW
Clear
Humidity
53%
Feels like
66°F
Dew Point
48°F
7 PM
64°F
0%
3mph
W
Clear
Humidity
54%
Feels like
64°F
Dew Point
47°F
8 PM
63°F
0%
2mph
WNW
Clear
Humidity
55%
Feels like
63°F
Dew Point
46°F
9 PM
62°F
0%
2mph
NNE
Mostly Clear
Humidity
56%
Feels like
62°F
Dew Point
46°F
10 PM
61°F
0%
3mph
NE
Mostly Clear
Humidity
58%
Feels like
61°F
Dew Point
46°F
11 PM
60°F
0%
3mph
NE
Mostly Clear
Humidity
59%
Feels like
60°F
Dew Point
46°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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