Hourly Weather Forecast - Portola Valley, CA

9 AM
55°F
0%
2mph
W
Mostly Sunny
Humidity
80%
Feels like
55°F
Dew Point
49°F
10 AM
61°F
0%
2mph
NW
Sunny
Humidity
66%
Feels like
61°F
Dew Point
49°F
11 AM
64°F
0%
2mph
NNW
Sunny
Humidity
56%
Feels like
64°F
Dew Point
48°F
12 PM
67°F
0%
3mph
N
Sunny
Humidity
51%
Feels like
67°F
Dew Point
48°F
1 PM
69°F
0%
3mph
N
Sunny
Humidity
47%
Feels like
69°F
Dew Point
48°F
2 PM
71°F
0%
4mph
N
Sunny
Humidity
44%
Feels like
71°F
Dew Point
48°F
3 PM
72°F
0%
5mph
N
Sunny
Humidity
41%
Feels like
72°F
Dew Point
47°F
4 PM
72°F
0%
6mph
NNW
Mostly Sunny
Humidity
44%
Feels like
72°F
Dew Point
49°F
5 PM
69°F
0%
6mph
NNW
Sunny
Humidity
49%
Feels like
69°F
Dew Point
49°F
6 PM
64°F
0%
6mph
NW
Mostly Sunny
Humidity
65%
Feels like
64°F
Dew Point
52°F
7 PM
58°F
0%
5mph
WNW
Mostly Sunny
Humidity
78%
Feels like
58°F
Dew Point
51°F
7:15 PM
8 PM
55°F
0%
4mph
W
Mostly Clear
Humidity
82%
Feels like
55°F
Dew Point
49°F
9 PM
52°F
0%
4mph
W
Mostly Clear
Humidity
88%
Feels like
52°F
Dew Point
48°F
10 PM
50°F
0%
3mph
W
Hazy
Humidity
92%
Feels like
50°F
Dew Point
48°F
11 PM
49°F
0%
2mph
W
Hazy
Humidity
94%
Feels like
49°F
Dew Point
47°F

Snowfall Forecast Through Monday

Major Winter Storm Afflicts U.S. Northern Tier

Just as one clipper exits New England today, the remnants of an atmospheric river will evolve into yet another destructive winter storm.

Sunday's Severe Weather Outlook

Severe Storms Berate Plains to East Coast

Today's Weather Outlook

Weekend Weather Outlook

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Weekly Drought Map for March 12, 2026

Widespread Drought Improvement For The South, Midwest

Blizzard: Its True Definition

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