All countries

California

San Mateo

Portola Valley

	by
reliable prognosis

This is the website from which the forecast is printed. To learn more, please visit the website.

Weather in Portola Valley

Local time 5:22

See on map

Weather archive at the weather station ( 28 km, +11.7 °C )

6 °C

9 hours ago at the airport (14 km) it was +16 °C, clear, normal air pressure, light breeze (3 m/s) blowing from the north-northwest. Weather archive at the airport

Today we expect +17..+12 °C°F, +63..+54 °C°F, without precipitation, gentle breeze. Tomorrow: +10..+14 °C°F, +50..+57 °C°F, without precipitation, fog, light breeze.

7 days

Today

Tomorrow

Sat

Sun

Mon

Tue

Wed

Today, Thu, May 22				Tomorrow, Fri, May 23				Sat, May 24				Sun, May 25				Mon, May 26				Tue, May 27				Wed, May 28
Local time	11	17	23	05	11	17	23	05	11	17	23	05	11	17	23	05	11	17	23	05	11	17	23	05	11	17
Cloudiness, % 1/10 oktas
Precipitation, mm Precipitation, inches
Fog, %			5	13			27	27	11	11	24	21			19	16			5	5			16	16
Temperature, °C °F	+17 +63	+15 +59	+8 +46	+8 +46	+13 +55	+13 +55	+8 +46	+8 +46	+13 +55	+12 +54	+8 +46	+8 +46	+13 +55	+14 +57	+9 +48	+9 +48	+17 +63	+15 +59	+9 +48	+8 +46	+15 +59	+15 +59	+9 +48	+9 +48	+15 +59	+15 +59
Feels like, °C °F			+6 +43	+6 +43			+7 +45	+7 +45			+6 +43	+6 +43			+8 +46				+7 +45	+7 +45			+8 +46	+8 +46
Pressure, mmHg inches mbar hPa	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	749 29.49 999 999	750 29.53 1000 1000	749 29.49 999 999	748 29.45 997 997	747 29.41 996 996	749 29.49 999 999	749 29.49 999 999	750 29.53 1000 1000	750 29.53 1000 1000	751 29.57 1001 1001	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	749 29.49 999 999	749 29.49 999 999	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	749 29.49 999 999	749 29.49 999 999	752 29.61 1003 1003	751 29.57 1001 1001
Wind: speed , m/s km/h mph knots Bft	2 7 4 4 2	4 14 9 8 3	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	4 14 9 8 3	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	4 14 9 8 3	2 7 4 4 2	1 4 2 2 1	2 7 4 4 2	4 14 9 8 3	4 14 9 8 3	2 7 4 4 2	2 7 4 4 2	4 14 9 8 3	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	3 11 7 6 2
gusts, m/s km/h mph knots Bft	7 25 16 14 4	9 32 20 17 5	6 22 13 12 4	7 25 16 14 4	7 25 16 14 4	9 32 20 17 5	5 18 11 10 3		7 25 16 14 4	9 32 20 17 5	7 25 16 14 4	6 22 13 12 4	7 25 16 14 4	9 32 20 17 5	5 18 11 10 3		6 22 13 12 4	9 32 20 17 5	8 29 18 16 5	5 18 11 10 3	5 18 11 10 3	9 32 20 17 5	5 18 11 10 3		9 32 20 17 5	9 32 20 17 5
direction	W	W	W	NW	W	W	W	SW	W	W	W	W	W	W	W	SW	W	W	W	W	SW	W	W	W	W	W
Humidity, %	61	66	90	96	81	82	96	97	85	86	95	98	86	74	93	93	71	81	91	94	75	72	93	94	85	83
Sun: rise set	05:54	20:17			05:53	20:17			05:53	20:18			05:52	20:19			05:52	20:20			05:51	20:20		05:51	20:21
Moon: rise set	02:58	15:23			03:24	16:35			03:53	17:51			04:26	19:10			05:06	20:32			05:56	21:49		06:56	22:56
phase

Show more (Humidity. Sun, Moon: rise, set, phase)

more information about weather
is available on the website rp5.by

Weather News

27 minutes ago, the minimum air temperature ( 0 ^oC ) was observed in San Bernardino County in Big Bear City (airport).

Today, Thursday, May 22																			Tomorrow, Friday, May 23																								Saturday, May 24												Sunday, May 25								Monday, May 26								Tuesday, May 27							Wednesday, May 28
Local time	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	08	11	14	17	20	23	02	05	08	11	14	17	20	23	02	05	08	11	14	17	20	23	02	05	08	11	14	17	23	05	11	17	Local time
Cloudiness, % 1/10 oktas																																																																																	Cloudiness, % 1/10 oktas
Precipitation, mm Precipitation, inches																																																																																	Precipitation, mm Precipitation, inches
Fog, %	16															5	5	5	11	11	16	11	21	13	19	19	13											11	26	21	24	27	19	34	21	32	34	27	21	11	11	11	16	24	19	21	5					19		16	5					5	11	5					16	16			Fog, %
Temperature, °C °F	+6 +43	+8 +46	+12 +54	+14 +57	+16 +61	+17 +63	+16 +61	+17 +63	+17 +63	+17 +63	+17 +63	+15 +59	+15 +59	+14 +57	+12 +54	+9 +48	+9 +48	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+10 +50	+11 +52	+12 +54	+13 +55	+12 +54	+13 +55	+13 +55	+13 +55	+14 +57	+13 +55	+13 +55	+13 +55	+11 +52	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+8 +46	+10 +50	+13 +55	+13 +55	+12 +54	+11 +52	+8 +46	+8 +46	+8 +46	+11 +52	+13 +55	+15 +59	+14 +57	+12 +54	+9 +48	+10 +50	+9 +48	+13 +55	+17 +63	+17 +63	+15 +59	+13 +55	+9 +48	+8 +46	+8 +46	+11 +52	+15 +59	+18 +64	+15 +59	+9 +48	+9 +48	+15 +59	+15 +59	Temperature, °C °F
Feels like, °C °F																+7 +45	+7 +45	+6 +43	+6 +43	+6 +43	+6 +43	+6 +43	+6 +43	+6 +43	+7 +45	+7 +45	+9 +48													+7 +45	+7 +45	+7 +45	+7 +45	+7 +45	+7 +45	+7 +45	+7 +45	+7 +45	+9 +48					+6 +43	+6 +43	+6 +43						+8 +46	+9 +48							+7 +45	+6 +43	+7 +45					+8 +46	+8 +46			Feels like, °C °F
Pressure, mmHg inches mbar hPa	749 29.49 999 999	749 29.49 999 999	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	747 29.41 996 996	747 29.41 996 996	747 29.41 996 996	748 29.45 997 997	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	751 29.57 1001 1001	751 29.57 1001 1001	751 29.57 1001 1001	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	750 29.53 1000 1000	749 29.49 999 999	749 29.49 999 999	749 29.49 999 999	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	748 29.45 997 997	749 29.49 999 999	749 29.49 999 999	752 29.61 1003 1003	751 29.57 1001 1001	Pressure, mmHg inches mbar hPa
Wind: speed , m/s km/h mph knots Bft	1 4 2 2 1	1 4 2 2 1	1 4 2 2 1	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	4 14 9 8 3	4 14 9 8 3	4 14 9 8 3	4 14 9 8 3	4 14 9 8 3	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	4 14 9 8 3	4 14 9 8 3	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	3 11 7 6 2	4 14 9 8 3	3 11 7 6 2	2 7 4 4 2	2 7 4 4 2	1 4 2 2 1	1 4 2 2 1	2 7 4 4 2	3 11 7 6 2	4 14 9 8 3	4 14 9 8 3	4 14 9 8 3	3 11 7 6 2	2 7 4 4 2	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	4 14 9 8 3	2 7 4 4 2	2 7 4 4 2	3 11 7 6 2	3 11 7 6 2	Wind: speed , m/s km/h mph knots Bft
gusts, m/s km/h mph knots Bft				5 18 11 10 3	6 22 13 12 4	7 25 16 14 4	7 25 16 14 4	8 29 18 16 5	9 32 20 17 5	9 32 20 17 5	9 32 20 17 5	9 32 20 17 5	9 32 20 17 5	9 32 20 17 5	8 29 18 16 5	7 25 16 14 4	7 25 16 14 4	6 22 13 12 4	6 22 13 12 4	6 22 13 12 4	7 25 16 14 4	7 25 16 14 4	8 29 18 16 5	7 25 16 14 4	5 18 11 10 3	5 18 11 10 3	5 18 11 10 3	5 18 11 10 3	6 22 13 12 4	7 25 16 14 4	8 29 18 16 5	8 29 18 16 5	8 29 18 16 5	8 29 18 16 5	8 29 18 16 5	9 32 20 17 5	8 29 18 16 5	7 25 16 14 4	6 22 13 12 4	5 18 11 10 3	5 18 11 10 3	5 18 11 10 3	5 18 11 10 3						5 18 11 10 3	7 25 16 14 4	9 32 20 17 5	9 32 20 17 5	7 25 16 14 4	7 25 16 14 4	6 22 13 12 4	6 22 13 12 4	7 25 16 14 4	7 25 16 14 4	9 32 20 17 5	9 32 20 17 5	7 25 16 14 4	5 18 11 10 3			4 14 9 8 3	6 22 13 12 4	9 32 20 17 5	9 32 20 17 5	8 29 18 16 5	8 29 18 16 5		5 18 11 10 3		5 18 11 10 3	8 29 18 16 5	9 32 20 17 5	5 18 11 10 3		9 32 20 17 5	9 32 20 17 5	gusts, m/s km/h mph knots Bft
direction	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	NW	NW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	SW	SW	SW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	SW	W	W	W	W	W	W	W	W	SW	SW	W	W	W	W	W	W	direction
Humidity, %	91	85	73	68	65	61	64	61	62	61	63	66	66	65	75	86	87	90	92	92	95	94	97	96	96	96	90	87	88	81	87	85	87	84	82	82	80	78	85	93	95	96	95	96	96	97	97	97	92	85	89	86	84	95	97	98	91	86	79	74	80	93	92	93	89	71	80	81	72	91	94	94	88	75	67	72	93	94	85	83	Humidity, %
Sun: rise set								05:54		20:17																			05:53		20:17																05:53		20:18								05:52		20:19						05:52		20:20						05:51		20:20			05:51	20:21		Sun: rise set
Moon: rise set								02:58		15:23																			03:24		16:35																03:53		17:51								04:26		19:10						05:06		20:32						05:56		21:49			06:56	22:56		Moon: rise set
phase																																																																																	phase