Hourly Weather Forecast - Alta Loma, CA

9 AM
72°F
0%
2mph
NW
Sunny
Humidity
27%
Feels like
72°F
Dew Point
36°F
10 AM
74°F
0%
2mph
WNW
Sunny
Humidity
27%
Feels like
74°F
Dew Point
37°F
11 AM
75°F
0%
2mph
W
Sunny
Humidity
26%
Feels like
75°F
Dew Point
37°F
12 PM
75°F
0%
2mph
WSW
Sunny
Humidity
26%
Feels like
75°F
Dew Point
38°F
1 PM
75°F
0%
2mph
WSW
Sunny
Humidity
27%
Feels like
75°F
Dew Point
39°F
2 PM
75°F
0%
2mph
W
Sunny
Humidity
29%
Feels like
75°F
Dew Point
40°F
3 PM
72°F
0%
3mph
W
Sunny
Humidity
32%
Feels like
72°F
Dew Point
41°F
4 PM
69°F
0%
4mph
WNW
Sunny
Humidity
40%
Feels like
69°F
Dew Point
44°F
4:42 PM
5 PM
65°F
0%
4mph
NW
Clear
Humidity
42%
Feels like
65°F
Dew Point
41°F
6 PM
63°F
0%
5mph
N
Clear
Humidity
41%
Feels like
63°F
Dew Point
38°F
7 PM
61°F
0%
6mph
N
Mostly Clear
Humidity
40%
Feels like
61°F
Dew Point
37°F
8 PM
60°F
0%
7mph
N
Mostly Clear
Humidity
38%
Feels like
60°F
Dew Point
34°F
9 PM
58°F
0%
8mph
N
Clear
Humidity
37%
Feels like
58°F
Dew Point
33°F
10 PM
57°F
0%
8mph
NNW
Clear
Humidity
37%
Feels like
57°F
Dew Point
31°F
11 PM
56°F
0%
7mph
NNW
Clear
Humidity
36%
Feels like
56°F
Dew Point
30°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide