Hourly Weather Forecast - Rialto, CA

12 AM
63°F
0%
3mph
ENE
Mostly Clear
Humidity
52%
Feels like
63°F
Dew Point
45°F
1 AM
62°F
0%
3mph
NE
Mostly Clear
Humidity
53%
Feels like
62°F
Dew Point
44°F
2 AM
61°F
0%
3mph
NE
Mostly Clear
Humidity
53%
Feels like
61°F
Dew Point
44°F
3 AM
60°F
0%
3mph
NE
Mostly Clear
Humidity
52%
Feels like
60°F
Dew Point
43°F
4 AM
60°F
0%
3mph
NE
Mostly Clear
Humidity
52%
Feels like
60°F
Dew Point
43°F
5 AM
60°F
0%
3mph
NE
Mostly Clear
Humidity
52%
Feels like
60°F
Dew Point
42°F
6 AM
60°F
0%
3mph
NE
Mostly Clear
Humidity
50%
Feels like
60°F
Dew Point
42°F
6:50 AM
7 AM
62°F
0%
3mph
NE
Mostly Sunny
Humidity
47%
Feels like
62°F
Dew Point
42°F
8 AM
66°F
0%
2mph
ENE
Mostly Sunny
Humidity
43%
Feels like
66°F
Dew Point
43°F
9 AM
69°F
0%
2mph
SE
Mostly Sunny
Humidity
38%
Feels like
69°F
Dew Point
42°F
10 AM
72°F
0%
2mph
S
Mostly Sunny
Humidity
33%
Feels like
72°F
Dew Point
42°F
11 AM
75°F
0%
3mph
SSW
Mostly Sunny
Humidity
30%
Feels like
75°F
Dew Point
42°F
12 PM
76°F
0%
4mph
SW
Mostly Sunny
Humidity
29%
Feels like
76°F
Dew Point
42°F
1 PM
77°F
0%
4mph
SW
Mostly Sunny
Humidity
29%
Feels like
77°F
Dew Point
42°F
2 PM
77°F
0%
4mph
SW
Mostly Sunny
Humidity
30%
Feels like
77°F
Dew Point
43°F
3 PM
75°F
0%
4mph
WSW
Mostly Sunny
Humidity
33%
Feels like
75°F
Dew Point
44°F
4 PM
73°F
0%
4mph
WSW
Mostly Sunny
Humidity
36%
Feels like
73°F
Dew Point
44°F
4:43 PM
5 PM
70°F
0%
4mph
WSW
Mostly Clear
Humidity
41%
Feels like
70°F
Dew Point
45°F
6 PM
67°F
0%
3mph
WSW
Mostly Clear
Humidity
45%
Feels like
67°F
Dew Point
46°F
7 PM
65°F
0%
3mph
WSW
Mostly Clear
Humidity
48%
Feels like
65°F
Dew Point
46°F
8 PM
64°F
0%
3mph
WNW
Mostly Clear
Humidity
51%
Feels like
64°F
Dew Point
46°F
9 PM
63°F
0%
2mph
NNW
Cloudy
Humidity
53%
Feels like
63°F
Dew Point
46°F
10 PM
62°F
0%
2mph
N
Cloudy
Humidity
56%
Feels like
62°F
Dew Point
46°F
11 PM
62°F
0%
2mph
NNE
Cloudy
Humidity
57%
Feels like
62°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.

Tuesday's Weather Outlook

Tuesday'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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