Hourly Weather Forecast - Portola Valley, CA

12 AM
46°F
0%
1mph
E
Clear
Humidity
85%
Feels like
46°F
Dew Point
42°F
1 AM
46°F
0%
1mph
E
Clear
Humidity
87%
Feels like
46°F
Dew Point
42°F
2 AM
45°F
0%
1mph
E
Clear
Humidity
88%
Feels like
45°F
Dew Point
41°F
3 AM
44°F
0%
1mph
E
Clear
Humidity
88%
Feels like
44°F
Dew Point
41°F
4 AM
44°F
0%
1mph
E
Clear
Humidity
89%
Feels like
44°F
Dew Point
40°F
5 AM
43°F
0%
1mph
E
Mostly Clear
Humidity
89%
Feels like
43°F
Dew Point
40°F
6 AM
44°F
0%
1mph
E
Mostly Clear
Humidity
89%
Feels like
44°F
Dew Point
40°F
7 AM
45°F
0%
1mph
E
Mostly Clear
Humidity
86%
Feels like
45°F
Dew Point
41°F

Snow Forecast through Thursday PM

Clipper Storms Pepper the Great Lakes to New England

The Great Lakes, Appalachia, and the Northeast will see bouts of wintry weather today through the weekend.

Wednesday's Weather Outlook

Today's Weather Outlook

(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)

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Windchill chart

Dangers of Wind Chills

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

Top Winter Hiking Destinations

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