Hourly Weather Forecast - Portola Valley, CA

12 AM
48°F
0%
2mph
W
Foggy
Humidity
100%
Feels like
48°F
Dew Point
48°F
1 AM
47°F
0%
1mph
SW
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
2 AM
46°F
0%
1mph
SW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
3 AM
46°F
0%
2mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
4 AM
46°F
10%
2mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
5 AM
46°F
10%
1mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
6 AM
47°F
0%
1mph
W
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
6:37 AM
7 AM
50°F
0%
1mph
W
Cloudy
Humidity
98%
Feels like
50°F
Dew Point
49°F
8 AM
53°F
0%
1mph
WNW
Cloudy
Humidity
93%
Feels like
53°F
Dew Point
51°F
9 AM
57°F
0%
1mph
NNW
Partly Cloudy
Humidity
81%
Feels like
57°F
Dew Point
51°F
10 AM
60°F
0%
1mph
NNW
Partly Cloudy
Humidity
73%
Feels like
60°F
Dew Point
51°F
11 AM
62°F
10%
2mph
NNW
Partly Cloudy
Humidity
67%
Feels like
62°F
Dew Point
51°F
12 PM
64°F
0%
3mph
NNW
Partly Cloudy
Humidity
62%
Feels like
64°F
Dew Point
50°F
1 PM
64°F
0%
4mph
NNW
Partly Cloudy
Humidity
62%
Feels like
64°F
Dew Point
51°F
2 PM
64°F
0%
5mph
NW
Partly Cloudy
Humidity
62%
Feels like
64°F
Dew Point
51°F
3 PM
63°F
0%
6mph
WNW
Partly Cloudy
Humidity
61%
Feels like
63°F
Dew Point
49°F
4 PM
61°F
0%
6mph
WNW
Partly Cloudy
Humidity
63%
Feels like
61°F
Dew Point
48°F
5 PM
58°F
0%
6mph
WNW
Partly Cloudy
Humidity
75%
Feels like
58°F
Dew Point
50°F
6 PM
55°F
0%
5mph
WNW
Partly Cloudy
Humidity
80%
Feels like
55°F
Dew Point
49°F
6:04 PM
7 PM
53°F
0%
5mph
WNW
Partly Cloudy
Humidity
84%
Feels like
53°F
Dew Point
48°F
8 PM
52°F
0%
4mph
WNW
Partly Cloudy
Humidity
88%
Feels like
52°F
Dew Point
48°F
9 PM
51°F
0%
3mph
WNW
Mostly Cloudy
Humidity
90%
Feels like
51°F
Dew Point
48°F
10 PM
50°F
0%
3mph
WNW
Mostly Cloudy
Humidity
92%
Feels like
50°F
Dew Point
47°F
11 PM
49°F
0%
2mph
W
Mostly Cloudy
Humidity
93%
Feels like
49°F
Dew Point
47°F

Snow and Ice Accumulations through Tuesday

Wintry Disturbance Hits Northeastern U.S.

A wintry disturbance will continue northeastward, buffeting the northeastern U.S. with light snow, freezing rain, and plain rain through Tuesday night.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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