Hourly Weather Forecast - Rancho Cucamonga, CA

12 AM
66°F
0%
4mph
NNE
Mostly Clear
Humidity
45%
Feels like
66°F
Dew Point
44°F
1 AM
65°F
0%
4mph
NNE
Mostly Clear
Humidity
46%
Feels like
65°F
Dew Point
44°F
2 AM
65°F
0%
4mph
NNE
Mostly Clear
Humidity
46%
Feels like
65°F
Dew Point
44°F
3 AM
64°F
0%
4mph
NNE
Mostly Clear
Humidity
46%
Feels like
64°F
Dew Point
43°F
4 AM
64°F
0%
4mph
NNE
Mostly Clear
Humidity
46%
Feels like
64°F
Dew Point
43°F
5 AM
63°F
0%
4mph
NNE
Mostly Clear
Humidity
47%
Feels like
63°F
Dew Point
42°F
6 AM
65°F
0%
4mph
NE
Mostly Clear
Humidity
45%
Feels like
65°F
Dew Point
43°F
6:50 AM
7 AM
67°F
0%
4mph
NE
Sunny
Humidity
42%
Feels like
67°F
Dew Point
43°F
8 AM
70°F
0%
4mph
NE
Mostly Sunny
Humidity
39%
Feels like
70°F
Dew Point
44°F
9 AM
73°F
0%
3mph
E
Mostly Sunny
Humidity
37%
Feels like
73°F
Dew Point
45°F
10 AM
75°F
0%
3mph
SSE
Mostly Sunny
Humidity
34%
Feels like
75°F
Dew Point
45°F
11 AM
77°F
0%
3mph
S
Mostly Sunny
Humidity
33%
Feels like
77°F
Dew Point
46°F
12 PM
78°F
0%
4mph
SSW
Mostly Sunny
Humidity
32%
Feels like
78°F
Dew Point
46°F
1 PM
79°F
0%
4mph
SSW
Mostly Sunny
Humidity
32%
Feels like
79°F
Dew Point
46°F
2 PM
79°F
0%
5mph
SW
Mostly Sunny
Humidity
33%
Feels like
79°F
Dew Point
47°F
3 PM
77°F
0%
5mph
SW
Mostly Sunny
Humidity
36%
Feels like
77°F
Dew Point
48°F
4 PM
75°F
0%
5mph
SW
Mostly Sunny
Humidity
39%
Feels like
75°F
Dew Point
48°F
4:43 PM
5 PM
72°F
0%
4mph
WSW
Mostly Clear
Humidity
43%
Feels like
72°F
Dew Point
48°F
6 PM
69°F
0%
4mph
WSW
Clear
Humidity
47%
Feels like
69°F
Dew Point
48°F
7 PM
67°F
0%
3mph
W
Clear
Humidity
48%
Feels like
67°F
Dew Point
47°F
8 PM
66°F
0%
3mph
WNW
Clear
Humidity
50%
Feels like
66°F
Dew Point
47°F
9 PM
65°F
0%
3mph
NNW
Clear
Humidity
51%
Feels like
65°F
Dew Point
47°F
10 PM
65°F
0%
3mph
N
Clear
Humidity
53%
Feels like
65°F
Dew Point
47°F
11 PM
64°F
0%
3mph
N
Clear
Humidity
53%
Feels like
64°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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