Hourly Weather Forecast - Pittsburgh, Ontario, CA

11 AM
19°F
0%
5mph
WSW
Mostly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
8°F
12 PM
22°F
0%
5mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
15°F
Dew Point
11°F
1 PM
24°F
10%
5mph
WSW
Mostly Cloudy
Humidity
64%
Feels like
18°F
Dew Point
14°F
2 PM
26°F
10%
6mph
WSW
Mostly Cloudy
Humidity
67%
Feels like
19°F
Dew Point
16°F
3 PM
26°F
10%
6mph
WSW
Mostly Cloudy
Humidity
71%
Feels like
20°F
Dew Point
18°F
4 PM
26°F
10%
6mph
WSW
Cloudy
Humidity
75%
Feels like
20°F
Dew Point
20°F
4:26 PM
5 PM
26°F
10%
6mph
WSW
Mostly Cloudy
Humidity
78%
Feels like
19°F
Dew Point
20°F
6 PM
25°F
0%
6mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
17°F
Dew Point
20°F
7 PM
24°F
30%
6mph
WSW
30% Chance of Snow
Humidity
83%
Feels like
16°F
Dew Point
19°F
8 PM
22°F
0%
6mph
WSW
Mostly Cloudy
Humidity
83%
Feels like
14°F
Dew Point
18°F
9 PM
21°F
0%
6mph
W
Mostly Cloudy
Humidity
81%
Feels like
13°F
Dew Point
16°F
10 PM
19°F
0%
6mph
W
Mostly Cloudy
Humidity
81%
Feels like
11°F
Dew Point
14°F
11 PM
18°F
0%
5mph
W
Mostly Cloudy
Humidity
81%
Feels like
10°F
Dew Point
13°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide