Hourly Weather Forecast - Portola Valley, CA

9 PM
41°F
0%
2mph
ESE
Foggy
Humidity
99%
Feels like
41°F
Dew Point
41°F
10 PM
40°F
0%
2mph
ESE
Foggy
Humidity
100%
Feels like
40°F
Dew Point
40°F
11 PM
39°F
0%
1mph
SE
Foggy
Humidity
100%
Feels like
39°F
Dew Point
39°F

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Rain and snow showers will sweep thru the Great Lakes as the Western U.S. begins a pattern of quiet and dry weather.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide