Hourly Weather Forecast - Portola Valley, CA

12 AM
44°F
0%
1mph
E
Clear
Humidity
80%
Feels like
44°F
Dew Point
38°F
1 AM
43°F
0%
1mph
ENE
Clear
Humidity
78%
Feels like
43°F
Dew Point
37°F
2 AM
42°F
0%
1mph
E
Clear
Humidity
76%
Feels like
42°F
Dew Point
35°F
3 AM
42°F
0%
1mph
E
Clear
Humidity
75%
Feels like
42°F
Dew Point
35°F
4 AM
41°F
0%
1mph
ESE
Clear
Humidity
75%
Feels like
41°F
Dew Point
34°F
5 AM
41°F
0%
1mph
E
Clear
Humidity
76%
Feels like
41°F
Dew Point
34°F
6 AM
41°F
0%
1mph
E
Clear
Humidity
76%
Feels like
41°F
Dew Point
34°F
7 AM
42°F
0%
1mph
E
Clear
Humidity
73%
Feels like
42°F
Dew Point
34°F
7:22 AM
8 AM
46°F
0%
1mph
ENE
Sunny
Humidity
73%
Feels like
46°F
Dew Point
38°F
9 AM
51°F
0%
1mph
ENE
Sunny
Humidity
65%
Feels like
51°F
Dew Point
40°F
10 AM
56°F
0%
1mph
NE
Sunny
Humidity
54%
Feels like
56°F
Dew Point
40°F
11 AM
60°F
0%
1mph
NE
Sunny
Humidity
47%
Feels like
60°F
Dew Point
39°F
12 PM
62°F
0%
1mph
NNE
Sunny
Humidity
44%
Feels like
62°F
Dew Point
39°F
1 PM
63°F
0%
2mph
NNE
Sunny
Humidity
43%
Feels like
63°F
Dew Point
40°F
2 PM
64°F
0%
2mph
NNE
Sunny
Humidity
45%
Feels like
64°F
Dew Point
42°F
3 PM
62°F
0%
2mph
NNE
Sunny
Humidity
51%
Feels like
62°F
Dew Point
43°F
4 PM
59°F
0%
2mph
NNE
Sunny
Humidity
63%
Feels like
59°F
Dew Point
46°F
5 PM
55°F
0%
2mph
NNE
Sunny
Humidity
71%
Feels like
55°F
Dew Point
46°F
5:13 PM
6 PM
52°F
0%
1mph
NE
Clear
Humidity
75%
Feels like
52°F
Dew Point
44°F
7 PM
50°F
0%
1mph
NE
Clear
Humidity
76%
Feels like
50°F
Dew Point
43°F
8 PM
48°F
0%
1mph
ENE
Clear
Humidity
79%
Feels like
48°F
Dew Point
42°F
9 PM
47°F
0%
1mph
ENE
Clear
Humidity
81%
Feels like
47°F
Dew Point
42°F
10 PM
46°F
0%
1mph
E
Clear
Humidity
83%
Feels like
46°F
Dew Point
41°F
11 PM
45°F
0%
1mph
E
Clear
Humidity
86%
Feels like
45°F
Dew Point
41°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)

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