Hourly Weather Forecast - Rialto, CA

12 AM
62°F
0%
3mph
NE
Partly Cloudy
Humidity
58%
Feels like
62°F
Dew Point
47°F
1 AM
61°F
0%
3mph
NE
Partly Cloudy
Humidity
58%
Feels like
61°F
Dew Point
46°F
2 AM
61°F
0%
3mph
ENE
Partly Cloudy
Humidity
57%
Feels like
61°F
Dew Point
46°F
3 AM
61°F
0%
3mph
ENE
Partly Cloudy
Humidity
55%
Feels like
61°F
Dew Point
45°F
4 AM
61°F
0%
3mph
ENE
Partly Cloudy
Humidity
54%
Feels like
61°F
Dew Point
44°F
5 AM
60°F
0%
2mph
ENE
Partly Cloudy
Humidity
56%
Feels like
60°F
Dew Point
45°F
6 AM
61°F
0%
2mph
ENE
Partly Cloudy
Humidity
54%
Feels like
61°F
Dew Point
44°F
6:51 AM
7 AM
63°F
0%
2mph
ENE
Partly Cloudy
Humidity
52%
Feels like
63°F
Dew Point
45°F
8 AM
65°F
0%
2mph
E
Partly Cloudy
Humidity
48%
Feels like
65°F
Dew Point
45°F
9 AM
67°F
0%
2mph
SE
Partly Cloudy
Humidity
45%
Feels like
67°F
Dew Point
45°F
10 AM
69°F
0%
3mph
S
Partly Cloudy
Humidity
42%
Feels like
69°F
Dew Point
45°F
11 AM
71°F
0%
4mph
S
Partly Cloudy
Humidity
40%
Feels like
71°F
Dew Point
45°F
12 PM
73°F
0%
4mph
SSW
Partly Cloudy
Humidity
39%
Feels like
73°F
Dew Point
46°F
1 PM
73°F
0%
4mph
SSW
Partly Cloudy
Humidity
39%
Feels like
73°F
Dew Point
47°F
2 PM
73°F
0%
5mph
SW
Partly Cloudy
Humidity
40%
Feels like
73°F
Dew Point
47°F
3 PM
71°F
0%
5mph
SW
Partly Cloudy
Humidity
44%
Feels like
71°F
Dew Point
48°F
4 PM
68°F
0%
4mph
SW
Partly Cloudy
Humidity
48%
Feels like
68°F
Dew Point
48°F
4:44 PM
5 PM
66°F
0%
4mph
WSW
Partly Cloudy
Humidity
52%
Feels like
66°F
Dew Point
48°F
6 PM
64°F
0%
3mph
WSW
Partly Cloudy
Humidity
55%
Feels like
64°F
Dew Point
48°F
7 PM
63°F
0%
3mph
WSW
Partly Cloudy
Humidity
56%
Feels like
63°F
Dew Point
47°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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