Point Forecast: 4 Miles S Portola Valley CA  37.31N 122.2W (Elev. 1598 ft)	Last Update: 2:43 am PDT Jun 3, 2024

[hide menu]

Weather Elements Weather/Precipitation Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Lightning Activity Level Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s

48-Hour Period Starting: 4am Mon, Jun 3 20245am Mon, Jun 3 20246am Mon, Jun 3 20247am Mon, Jun 3 20248am Mon, Jun 3 20249am Mon, Jun 3 202410am Mon, Jun 3 202411am Mon, Jun 3 202412pm Mon, Jun 3 20241pm Mon, Jun 3 20242pm Mon, Jun 3 20243pm Mon, Jun 3 20244pm Mon, Jun 3 20245pm Mon, Jun 3 20246pm Mon, Jun 3 20247pm Mon, Jun 3 20248pm Mon, Jun 3 20249pm Mon, Jun 3 202410pm Mon, Jun 3 202411pm Mon, Jun 3 202412am Tue, Jun 4 20241am Tue, Jun 4 20242am Tue, Jun 4 20243am Tue, Jun 4 20244am Tue, Jun 4 20245am Tue, Jun 4 20246am Tue, Jun 4 20247am Tue, Jun 4 20248am Tue, Jun 4 20249am Tue, Jun 4 202410am Tue, Jun 4 202411am Tue, Jun 4 202412pm Tue, Jun 4 20241pm Tue, Jun 4 20242pm Tue, Jun 4 20243pm Tue, Jun 4 20244pm Tue, Jun 4 20245pm Tue, Jun 4 20246pm Tue, Jun 4 20247pm Tue, Jun 4 20248pm Tue, Jun 4 20249pm Tue, Jun 4 202410pm Tue, Jun 4 202411pm Tue, Jun 4 202412am Wed, Jun 5 20241am Wed, Jun 5 20242am Wed, Jun 5 20243am Wed, Jun 5 20244am Wed, Jun 5 20245am Wed, Jun 5 20246am Wed, Jun 5 20247am Wed, Jun 5 20248am Wed, Jun 5 20249am Wed, Jun 5 202410am Wed, Jun 5 202411am Wed, Jun 5 202412pm Wed, Jun 5 20241pm Wed, Jun 5 20242pm Wed, Jun 5 20243pm Wed, Jun 5 20244pm Wed, Jun 5 20245pm Wed, Jun 5 20246pm Wed, Jun 5 20247pm Wed, Jun 5 20248pm Wed, Jun 5 20249pm Wed, Jun 5 202410pm Wed, Jun 5 202411pm Wed, Jun 5 202412am Thu, Jun 6 20241am Thu, Jun 6 20242am Thu, Jun 6 20243am Thu, Jun 6 20244am Thu, Jun 6 20245am Thu, Jun 6 20246am Thu, Jun 6 20247am Thu, Jun 6 20248am Thu, Jun 6 20249am Thu, Jun 6 202410am Thu, Jun 6 202411am Thu, Jun 6 202412pm Thu, Jun 6 20241pm Thu, Jun 6 20242pm Thu, Jun 6 20243pm Thu, Jun 6 20244pm Thu, Jun 6 20245pm Thu, Jun 6 20246pm Thu, Jun 6 20247pm Thu, Jun 6 20248pm Thu, Jun 6 20249pm Thu, Jun 6 202410pm Thu, Jun 6 202411pm Thu, Jun 6 202412am Fri, Jun 7 20241am Fri, Jun 7 20242am Fri, Jun 7 20243am Fri, Jun 7 20244am Fri, Jun 7 20245am Fri, Jun 7 20246am Fri, Jun 7 20247am Fri, Jun 7 20248am Fri, Jun 7 20249am Fri, Jun 7 202410am Fri, Jun 7 202411am Fri, Jun 7 202412pm Fri, Jun 7 20241pm Fri, Jun 7 20242pm Fri, Jun 7 20243pm Fri, Jun 7 2024

Date	06/03																				06/04
Hour (PDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	56	57	56	57	57	58	59	59	61	60	62	61	61	60	57	55	52	51	51	51	52	54	55	53
Dewpoint (°F)	50	50	51	51	52	53	54	57	57	58	59	58	57	55	53	50	48	46	44	43	43	42	43	39
Heat Index (°F)
Surface Wind (mph)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	6	5	3	3
Wind Dir	NW	NW	NW	NW	NW	NW	WNW	WNW	WNW	WNW	W	W	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NNW	N	N	N
Gust	18
Sky Cover (%)	57	70	70	76	81	83	80	76	80	81	74	57	79	64	61	55	59	64	56	64	69	48	36	48
Precipitation Potential (%)	0	0	0	0	0	0	0	1	1	1	1	1	1	2	2	2	2	2	2	0	0	0	0	0
Relative Humidity (%)	80	79	82	80	82	83	86	91	88	92	90	89	85	86	86	83	86	82	78	74	69	63	63	59
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																					06/05
Hour (PDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	56	57	57	61	63	66	69	70	73	75	76	76	74	73	70	67	64	64	64	64	64	63	62	61
Dewpoint (°F)	42	43	43	45	46	47	49	51	52	53	54	54	54	54	52	50	49	48	47	47	46	46	46	45
Heat Index (°F)										75	76	76
Surface Wind (mph)	3	3	3	5	6	7	7	8	8	9	9	9	9	9	8	8	7	7	6	6	5	5	3	3
Wind Dir	N	NNE	N	N	NNW	NNW	NNW	NNW	NNW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust									18	20	21	21	22	22	22	21	20	18
Sky Cover (%)	49	54	44	36	29	35	19	3	3	3	3	4	6	7	10	13	16	15	13	12	13	13	14	14
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	60	59	58	57	53	51	50	50	49	48	47	48	50	52	54	56	56	56	54	53	53	54	55	55
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hourly River Stages Hourly Rainfall NWS Office Map Weather Calculator User Defined Area