Hourly Weather Forecast - Copper Cliff, Ontario, CA

12 AM
22°F
50%
10mph
WSW
50% Chance Frozen Mix
Humidity
88%
Feels like
12°F
Dew Point
19°F
1 AM
22°F
40%
10mph
W
40% Chance Freezing Rain
Humidity
85%
Feels like
11°F
Dew Point
18°F
2 AM
21°F
30%
10mph
W
30% Chance Freezing Rain
Humidity
86%
Feels like
10°F
Dew Point
17°F
3 AM
20°F
20%
10mph
W
Cloudy
Humidity
93%
Feels like
9°F
Dew Point
19°F
4 AM
20°F
20%
10mph
W
Foggy
Humidity
99%
Feels like
8°F
Dew Point
19°F
5 AM
19°F
20%
9mph
W
Foggy
Humidity
100%
Feels like
8°F
Dew Point
19°F
6 AM
17°F
20%
9mph
W
Mostly Cloudy
Humidity
97%
Feels like
6°F
Dew Point
17°F
7 AM
16°F
20%
9mph
WNW
Mostly Cloudy
Humidity
95%
Feels like
5°F
Dew Point
15°F
8 AM
15°F
20%
9mph
WNW
Partly Cloudy
Humidity
88%
Feels like
4°F
Dew Point
13°F
8:04 AM
9 AM
15°F
20%
9mph
WNW
Partly Cloudy
Humidity
87%
Feels like
4°F
Dew Point
12°F
10 AM
15°F
20%
9mph
W
Partly Cloudy
Humidity
89%
Feels like
4°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