Hourly Weather Forecast - Portola Valley, CA

12 AM
44°F
0%
0mph
E
Mostly Cloudy
Humidity
95%
Feels like
44°F
Dew Point
42°F
1 AM
43°F
0%
0mph
ESE
Cloudy
Humidity
96%
Feels like
43°F
Dew Point
42°F
2 AM
42°F
0%
0mph
ESE
Cloudy
Humidity
97%
Feels like
42°F
Dew Point
42°F
3 AM
42°F
0%
0mph
ESE
Cloudy
Humidity
97%
Feels like
42°F
Dew Point
41°F
4 AM
42°F
0%
0mph
SSE
Cloudy
Humidity
98%
Feels like
42°F
Dew Point
41°F
5 AM
42°F
0%
0mph
SE
Foggy
Humidity
100%
Feels like
42°F
Dew Point
42°F
6 AM
42°F
0%
0mph
ESE
Foggy
Humidity
100%
Feels like
42°F
Dew Point
42°F
7 AM
44°F
0%
0mph
ESE
Cloudy
Humidity
95%
Feels like
44°F
Dew Point
42°F
7:19 AM
8 AM
48°F
0%
0mph
E
Cloudy
Humidity
92%
Feels like
48°F
Dew Point
46°F
9 AM
55°F
0%
0mph
E
Cloudy
Humidity
78%
Feels like
55°F
Dew Point
48°F
10 AM
59°F
0%
0mph
ENE
Cloudy
Humidity
61%
Feels like
59°F
Dew Point
46°F
11 AM
62°F
0%
0mph
NNE
Cloudy
Humidity
57%
Feels like
62°F
Dew Point
46°F
12 PM
63°F
0%
1mph
NNW
Cloudy
Humidity
53%
Feels like
63°F
Dew Point
46°F
1 PM
64°F
0%
1mph
NNW
Cloudy
Humidity
53%
Feels like
64°F
Dew Point
46°F
2 PM
63°F
0%
1mph
NW
Cloudy
Humidity
53%
Feels like
63°F
Dew Point
46°F
3 PM
60°F
0%
1mph
NW
Cloudy
Humidity
60%
Feels like
60°F
Dew Point
46°F
4 PM
56°F
0%
1mph
NW
Cloudy
Humidity
76%
Feels like
56°F
Dew Point
49°F
5 PM
51°F
0%
1mph
NW
Cloudy
Humidity
87%
Feels like
51°F
Dew Point
48°F
5:21 PM
6 PM
49°F
0%
1mph
NW
Mostly Cloudy
Humidity
93%
Feels like
49°F
Dew Point
47°F
7 PM
48°F
0%
1mph
NW
Mostly Cloudy
Humidity
95%
Feels like
48°F
Dew Point
47°F
8 PM
47°F
0%
1mph
NW
Mostly Cloudy
Humidity
97%
Feels like
47°F
Dew Point
46°F
9 PM
46°F
0%
1mph
W
Cloudy
Humidity
98%
Feels like
46°F
Dew Point
46°F
10 PM
45°F
0%
1mph
WSW
Foggy
Humidity
100%
Feels like
45°F
Dew Point
45°F
11 PM
45°F
0%
0mph
WSW
Foggy
Humidity
100%
Feels like
45°F
Dew Point
45°F

Snow Forecast through Sunday

Series of Weather Systems Cover Great Lakes, East in Snow

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

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

Safety Tips For Icy Surfaces

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