Hourly Weather Forecast - Ontario, CA

12 AM
56°F
0%
3mph
NE
Cloudy
Humidity
78%
Feels like
56°F
Dew Point
50°F
1 AM
56°F
0%
3mph
E
Cloudy
Humidity
78%
Feels like
56°F
Dew Point
49°F
2 AM
55°F
0%
3mph
E
Cloudy
Humidity
78%
Feels like
55°F
Dew Point
49°F
3 AM
55°F
0%
3mph
ESE
Cloudy
Humidity
77%
Feels like
55°F
Dew Point
48°F
4 AM
55°F
0%
3mph
ESE
Cloudy
Humidity
77%
Feels like
55°F
Dew Point
48°F
5 AM
54°F
0%
4mph
ESE
Cloudy
Humidity
76%
Feels like
54°F
Dew Point
47°F
6 AM
55°F
0%
4mph
E
Cloudy
Humidity
75%
Feels like
55°F
Dew Point
47°F
6:53 AM
7 AM
56°F
10%
4mph
E
Cloudy
Humidity
71%
Feels like
56°F
Dew Point
47°F
8 AM
59°F
10%
4mph
ESE
Cloudy
Humidity
65%
Feels like
59°F
Dew Point
47°F
9 AM
62°F
10%
3mph
SE
Mostly Cloudy
Humidity
58%
Feels like
62°F
Dew Point
47°F
10 AM
65°F
10%
3mph
SE
Mostly Cloudy
Humidity
52%
Feels like
65°F
Dew Point
47°F
11 AM
67°F
10%
4mph
S
Mostly Cloudy
Humidity
48%
Feels like
67°F
Dew Point
47°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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