Hourly Weather Forecast - Pittsburgh, Ontario, CA

3 PM
39°F
10%
13mph
WSW
Mostly Cloudy
Humidity
84%
Feels like
31°F
Dew Point
35°F
4 PM
38°F
0%
12mph
WSW
Mostly Cloudy
Humidity
83%
Feels like
30°F
Dew Point
33°F
4:27 PM
5 PM
37°F
0%
10mph
W
Mostly Cloudy
Humidity
82%
Feels like
29°F
Dew Point
32°F
6 PM
35°F
0%
8mph
W
Mostly Cloudy
Humidity
81%
Feels like
29°F
Dew Point
30°F
7 PM
33°F
0%
5mph
W
Partly Cloudy
Humidity
81%
Feels like
28°F
Dew Point
28°F
8 PM
31°F
0%
4mph
W
Partly Cloudy
Humidity
81%
Feels like
26°F
Dew Point
26°F
9 PM
28°F
0%
4mph
WNW
Partly Cloudy
Humidity
82%
Feels like
24°F
Dew Point
24°F
10 PM
26°F
0%
2mph
W
Mostly Clear
Humidity
83%
Feels like
26°F
Dew Point
22°F
11 PM
24°F
0%
1mph
W
Mostly Clear
Humidity
84%
Feels like
24°F
Dew Point
20°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday'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