Hourly Weather Forecast - Rancho Cucamonga, CA

12 AM
57°F
0%
3mph
S
Cloudy
Humidity
69%
Feels like
57°F
Dew Point
47°F
1 AM
56°F
0%
3mph
S
Cloudy
Humidity
70%
Feels like
56°F
Dew Point
47°F
2 AM
56°F
10%
4mph
SSE
Cloudy
Humidity
71%
Feels like
56°F
Dew Point
47°F
3 AM
56°F
10%
4mph
SE
Cloudy
Humidity
70%
Feels like
56°F
Dew Point
46°F
4 AM
55°F
10%
4mph
ESE
Cloudy
Humidity
69%
Feels like
55°F
Dew Point
45°F
5 AM
55°F
10%
4mph
ESE
Cloudy
Humidity
69%
Feels like
55°F
Dew Point
45°F
6 AM
56°F
10%
4mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
56°F
Dew Point
45°F
6:53 AM
7 AM
58°F
10%
4mph
SE
Cloudy
Humidity
62%
Feels like
58°F
Dew Point
46°F
8 AM
61°F
10%
4mph
SE
Cloudy
Humidity
58%
Feels like
61°F
Dew Point
46°F
9 AM
63°F
10%
3mph
SSE
Mostly Cloudy
Humidity
55%
Feels like
63°F
Dew Point
47°F
10 AM
65°F
10%
4mph
S
Mostly Cloudy
Humidity
51%
Feels like
65°F
Dew Point
46°F
11 AM
67°F
10%
4mph
S
Mostly Cloudy
Humidity
48%
Feels like
67°F
Dew Point
46°F
12 PM
68°F
10%
5mph
SSW
Mostly Cloudy
Humidity
45%
Feels like
68°F
Dew Point
46°F
1 PM
68°F
10%
6mph
SSW
Cloudy
Humidity
44%
Feels like
68°F
Dew Point
45°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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