Hourly Weather Forecast - Port Perry, Ontario, CA

12 AM
20°F
20%
5mph
NE
Clear
Humidity
75%
Feels like
13°F
Dew Point
13°F
1 AM
19°F
20%
4mph
NE
Clear
Humidity
79%
Feels like
13°F
Dew Point
14°F
2 AM
18°F
10%
4mph
ENE
Clear
Humidity
84%
Feels like
12°F
Dew Point
14°F
3 AM
18°F
10%
4mph
ENE
Mostly Clear
Humidity
87%
Feels like
12°F
Dew Point
15°F
4 AM
18°F
10%
4mph
ENE
Partly Cloudy
Humidity
88%
Feels like
12°F
Dew Point
15°F
5 AM
19°F
10%
4mph
ENE
Partly Cloudy
Humidity
89%
Feels like
12°F
Dew Point
16°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide