Hourly Weather Forecast - Portola Valley, CA

9 AM
57°F
0%
2mph
SW
Mostly Cloudy
Humidity
74%
Feels like
57°F
Dew Point
49°F
10 AM
59°F
70%
2mph
WSW
70% Chance Rain Showers
Humidity
68%
Feels like
59°F
Dew Point
48°F
11 AM
61°F
70%
3mph
WSW
70% Chance Rain Showers
Humidity
64%
Feels like
61°F
Dew Point
48°F
12 PM
62°F
0%
4mph
WSW
Partly Cloudy
Humidity
63%
Feels like
62°F
Dew Point
49°F
1 PM
62°F
0%
5mph
WSW
Partly Cloudy
Humidity
62%
Feels like
62°F
Dew Point
49°F
2 PM
62°F
0%
5mph
WSW
Partly Cloudy
Humidity
62%
Feels like
62°F
Dew Point
49°F
3 PM
62°F
0%
6mph
WSW
Mostly Sunny
Humidity
63%
Feels like
62°F
Dew Point
49°F
4 PM
62°F
0%
7mph
WSW
Mostly Sunny
Humidity
60%
Feels like
62°F
Dew Point
48°F
5 PM
61°F
0%
7mph
WSW
Partly Cloudy
Humidity
62%
Feels like
61°F
Dew Point
48°F
6 PM
60°F
0%
7mph
WSW
Partly Cloudy
Humidity
63%
Feels like
60°F
Dew Point
47°F
7 PM
57°F
0%
6mph
WSW
Mostly Sunny
Humidity
69%
Feels like
57°F
Dew Point
47°F
8 PM
55°F
0%
5mph
WSW
Mostly Sunny
Humidity
75%
Feels like
55°F
Dew Point
47°F
8:00 PM
9 PM
53°F
0%
4mph
WSW
Mostly Clear
Humidity
77%
Feels like
53°F
Dew Point
46°F
10 PM
52°F
0%
3mph
WSW
Partly Cloudy
Humidity
79%
Feels like
52°F
Dew Point
46°F
11 PM
51°F
0%
2mph
SW
Partly Cloudy
Humidity
83%
Feels like
51°F
Dew Point
46°F

Today's Weather Outlook

Today's Weather Outlook

A warmer, quieter spring pattern spreads across much of the country today as dry weather approaches more regions.

Weekly Drought Map for April 30th, 2026

Latest Drought Update: Deep Drought Continues

(Image provided by Manfred Richter via Pixabay.com)

Plant Care: What to Do When Frosts and Freezes Occur

Featured image via Pixabay.com

Drought Impacts: It's More Than You Think!

Debris from the Tuscaloosa-Birmingham tornado. Source: National Weather Service in Birmingham, Alabama

Remembering the Tuscaloosa-Birmingham Tornado

A thunderstorm is seen in the Plains. (Courtesy of Pixabay.com)

Spring Weather Hazards: Excessive Heat to Blizzards

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