weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: 4 Miles S Clayton CA  37.87N 121.95W (Elev. 1509 ft)	Last Update: 4:01 am PDT Oct 18, 2019

[hide menu]  |  Font Size: A A A

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

48-Hour Period Starting: 9am Fri, Oct 18 201910am Fri, Oct 18 201911am Fri, Oct 18 201912pm Fri, Oct 18 20191pm Fri, Oct 18 20192pm Fri, Oct 18 20193pm Fri, Oct 18 20194pm Fri, Oct 18 20195pm Fri, Oct 18 20196pm Fri, Oct 18 20197pm Fri, Oct 18 20198pm Fri, Oct 18 20199pm Fri, Oct 18 201910pm Fri, Oct 18 201911pm Fri, Oct 18 201912am Sat, Oct 19 20191am Sat, Oct 19 20192am Sat, Oct 19 20193am Sat, Oct 19 20194am Sat, Oct 19 20195am Sat, Oct 19 20196am Sat, Oct 19 20197am Sat, Oct 19 20198am Sat, Oct 19 20199am Sat, Oct 19 201910am Sat, Oct 19 201911am Sat, Oct 19 201912pm Sat, Oct 19 20191pm Sat, Oct 19 20192pm Sat, Oct 19 20193pm Sat, Oct 19 20194pm Sat, Oct 19 20195pm Sat, Oct 19 20196pm Sat, Oct 19 20197pm Sat, Oct 19 20198pm Sat, Oct 19 20199pm Sat, Oct 19 201910pm Sat, Oct 19 201911pm Sat, Oct 19 201912am Sun, Oct 20 20191am Sun, Oct 20 20192am Sun, Oct 20 20193am Sun, Oct 20 20194am Sun, Oct 20 20195am Sun, Oct 20 20196am Sun, Oct 20 20197am Sun, Oct 20 20198am Sun, Oct 20 20199am Sun, Oct 20 201910am Sun, Oct 20 201911am Sun, Oct 20 201912pm Sun, Oct 20 20191pm Sun, Oct 20 20192pm Sun, Oct 20 20193pm Sun, Oct 20 20194pm Sun, Oct 20 20195pm Sun, Oct 20 20196pm Sun, Oct 20 20197pm Sun, Oct 20 20198pm Sun, Oct 20 20199pm Sun, Oct 20 201910pm Sun, Oct 20 201911pm Sun, Oct 20 201912am Mon, Oct 21 20191am Mon, Oct 21 20192am Mon, Oct 21 20193am Mon, Oct 21 20194am Mon, Oct 21 20195am Mon, Oct 21 20196am Mon, Oct 21 20197am Mon, Oct 21 20198am Mon, Oct 21 20199am Mon, Oct 21 201910am Mon, Oct 21 201911am Mon, Oct 21 201912pm Mon, Oct 21 20191pm Mon, Oct 21 20192pm Mon, Oct 21 20193pm Mon, Oct 21 20194pm Mon, Oct 21 20195pm Mon, Oct 21 20196pm Mon, Oct 21 20197pm Mon, Oct 21 20198pm Mon, Oct 21 20199pm Mon, Oct 21 201910pm Mon, Oct 21 201911pm Mon, Oct 21 201912am Tue, Oct 22 20191am Tue, Oct 22 20192am Tue, Oct 22 20193am Tue, Oct 22 20194am Tue, Oct 22 20195am Tue, Oct 22 20196am Tue, Oct 22 20197am Tue, Oct 22 20198am Tue, Oct 22 20199am Tue, Oct 22 201910am Tue, Oct 22 201911am Tue, Oct 22 201912pm Tue, Oct 22 20191pm Tue, Oct 22 20192pm Tue, Oct 22 20193pm Tue, Oct 22 20194pm Tue, Oct 22 20195pm Tue, Oct 22 20196pm Tue, Oct 22 20197pm Tue, Oct 22 20198pm Tue, Oct 22 2019

Date	10/19															10/20
Hour (PDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°F)	55	60	64	66	68	69	70	70	68	64	60	56	53	52	51	50	50	49	50	50	49	47	46	47
Dewpoint (°F)	44	47	50	52	54	55	55	55	54	52	50	47	46	44	44	42	41	40	39	38	37	36	34	35
Wind Chill (°F)																47	46	47	47	47	45	43	41	42
Surface Wind (mph)	8	8	10	10	10	11	11	11	9	9	9	6	6	6	7	7	7	6	6	6	7	7	7	5
Wind Dir	NW	NW	WNW	WNW	WNW	W	W	W	W	W	W	WNW	WNW	WNW	NW	NW	NW	NNW	NNW	NNW	N	N	N	N
Gust
Sky Cover (%)	38	38	31	31	31	14	14	14	29	29	29	29	29	29	49	49	49	52	52	52	23	23	23	0
Precipitation Potential (%)	0	0	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	68	62	61	61	61	60	59	59	61	65	70	74	76	76	75	74	73	70	67	64	63	63	64	62
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																10/21
Hour (PDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°F)	52	58	64	68	70	71	72	73	72	68	63	58	55	54	53	52	52	52	52	52	51	50	49	50
Dewpoint (°F)	36	38	39	39	40	41	42	43	44	44	43	42	41	41	41	41	40	39	39	39	38	38	37	38
Wind Chill (°F)																						46	45	46
Surface Wind (mph)	5	5	6	6	6	8	8	8	9	9	9	5	5	5	11	11	11	14	14	14	10	10	10	9
Wind Dir	N	N	NW	NW	NW	WNW	WNW	WNW	WNW	WNW	WNW	NNW	NNW	NNW	N	N	N	N	N	N	N	N	N	NE
Gust																		21	21	21
Sky Cover (%)	0	0	4	4	4	9	9	9	4	4	4	4	4	4	1	1	1	1	1	1	1	1	1	1
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 (%)	56	47	39	35	34	34	34	34	36	41	48	54	59	63	64	64	64	62	61	60	60	63	65	64
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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

---

Webmaster NOAA's National Weather Service San Francisco Bay Area/Monterey, CA

Disclaimer Credits Glossary

Privacy Policy About Us Career Opportunities