Portola Valley, CA

Hourly

12 AM

49° RealFeel® 45° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 47% Showers

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 17 mph
• Humidity: 91%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 99%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

1 AM

49° RealFeel® 46° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 46% Cloudy

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 16 mph
• Humidity: 91%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 98%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

2 AM

49° RealFeel® 46° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 34% Cloudy

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 16 mph
• Humidity: 91%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

3 AM

49° RealFeel® 46° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 34% Cloudy

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 91%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

4 AM

49° RealFeel® 46° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 40% Cloudy

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 90%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

5 AM

49° RealFeel® 43° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 55% Showers

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 14 mph
• Humidity: 90%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Rain: 0.02 in
• Visibility: 6 mi
• Cloud Ceiling: 1800 ft

6 AM

49° RealFeel® 43° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 55% Showers

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 16 mph
• Humidity: 90%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Rain: 0.02 in
• Visibility: 6 mi
• Cloud Ceiling: 1800 ft

7 AM

50° RealFeel® 47° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 49% Cloudy

• RealFeel Shade™: 47°
• Wind: W 7 mph
• Air Quality: Fair
• Max UV Index: 0 Low
• Wind Gusts: 17 mph
• Humidity: 89%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

8 AM

51° RealFeel® 48° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 34% Cloudy

• RealFeel Shade™: 48°
• Wind: W 8 mph
• Air Quality: Fair
• Max UV Index: 0 Low
• Wind Gusts: 20 mph
• Humidity: 87%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1800 ft

9 AM

52° RealFeel® 49° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 34% Cloudy

• RealFeel Shade™: 49°
• Wind: W 8 mph
• Air Quality: Fair
• Max UV Index: 1 Low
• Wind Gusts: 21 mph
• Humidity: 85%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

10 AM

53° RealFeel® 50° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 40% Cloudy

• RealFeel Shade™: 50°
• Wind: WNW 9 mph
• Air Quality: Fair
• Max UV Index: 1 Low
• Wind Gusts: 22 mph
• Humidity: 83%
• Indoor Humidity: 48% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

11 AM

54° RealFeel® 48° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 52% Showers

• RealFeel Shade™: 46°
• Wind: WNW 9 mph
• Air Quality: Fair
• Max UV Index: 1 Low
• Wind Gusts: 24 mph
• Humidity: 81%
• Indoor Humidity: 49% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 100%
• Rain: 0.05 in
• Visibility: 5 mi
• Cloud Ceiling: 1900 ft

12 PM

54° RealFeel® 52° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 48% Cloudy

• RealFeel Shade™: 50°
• Wind: WNW 10 mph
• Air Quality: Fair
• Max UV Index: 2 Low
• Wind Gusts: 25 mph
• Humidity: 79%
• Indoor Humidity: 49% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 99%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

1 PM

55° RealFeel® 53° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 30% Cloudy

• RealFeel Shade™: 50°
• Wind: W 10 mph
• Air Quality: Fair
• Max UV Index: 2 Low
• Wind Gusts: 24 mph
• Humidity: 76%
• Indoor Humidity: 49% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 99%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

2 PM

56° RealFeel® 56° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 3% Intermittent clouds

• RealFeel Shade™: 51°
• Wind: W 12 mph
• Air Quality: Fair
• Max UV Index: 4 Moderate
• Wind Gusts: 23 mph
• Humidity: 74%
• Indoor Humidity: 48% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

3 PM

56° RealFeel® 55° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 3% Intermittent clouds

• RealFeel Shade™: 51°
• Wind: W 12 mph
• Air Quality: Fair
• Max UV Index: 3 Moderate
• Wind Gusts: 23 mph
• Humidity: 72%
• Indoor Humidity: 48% (Ideal Humidity)
• Dew Point: 48° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

4 PM

57° RealFeel® 55° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 3% Intermittent clouds

• RealFeel Shade™: 52°
• Wind: W 12 mph
• Air Quality: Fair
• Max UV Index: 2 Low
• Wind Gusts: 22 mph
• Humidity: 69%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

5 PM

56° RealFeel® 53° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 3% Intermittent clouds

• RealFeel Shade™: 51°
• Wind: W 12 mph
• Air Quality: Fair
• Max UV Index: 1 Low
• Wind Gusts: 21 mph
• Humidity: 71%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

6 PM

55° RealFeel® 51° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 3% Intermittent clouds

• RealFeel Shade™: 51°
• Wind: W 10 mph
• Air Quality: Fair
• Max UV Index: 1 Low
• Wind Gusts: 20 mph
• Humidity: 73%
• Indoor Humidity: 46% (Ideal Humidity)
• Dew Point: 46° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

7 PM

54° RealFeel® 49° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 2% Intermittent clouds

• RealFeel Shade™: 49°
• Wind: W 9 mph
• Air Quality: Fair
• Max UV Index: 0 Low
• Wind Gusts: 17 mph
• Humidity: 75%
• Indoor Humidity: 45% (Ideal Humidity)
• Dew Point: 46° F
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 1900 ft

8 PM

53° RealFeel® 49° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 0% Intermittent clouds

• Wind: W 8 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 75%
• Indoor Humidity: 44% (Ideal Humidity)
• Dew Point: 45° F
• Cloud Cover: 56%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

52° RealFeel® 48° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 0% Intermittent clouds

• Wind: W 8 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 77%
• Indoor Humidity: 43% (Ideal Humidity)
• Dew Point: 45° F
• Cloud Cover: 56%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

51° RealFeel® 48° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 0% Intermittent clouds

• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 12 mph
• Humidity: 78%
• Indoor Humidity: 43% (Ideal Humidity)
• Dew Point: 45° F
• Cloud Cover: 56%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

51° RealFeel® 49° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 0% Intermittent clouds

• Wind: W 6 mph
• Air Quality: Fair
• Wind Gusts: 10 mph
• Humidity: 79%
• Indoor Humidity: 43% (Ideal Humidity)
• Dew Point: 45° F
• Cloud Cover: 57%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft