Name: Portola Valley
Address: Portola Valley, California, US

Hourly forecast · Portola Valley

The next 48 hours in detail — temperature, feels-like, precipitation chance, wind and UV for every hour. Built on NWS NBM and global model guidance.

48 hours — Portola Valley

Today + 10-day →

Time	Conditions	Temp	Precip	Wind	UV
Friday 28/8 07:00	Partly cloudy	70°	–	3 mph SW	5
08:00	Partly cloudy	62°	–	5 mph SW	4
09:00	Partly cloudy	67°	–	5 mph SW	4
10:00	Mostly cloudy	61°	–	4 mph SW	4
11:00	Mostly cloudy	62°	–	4 mph SW	4
12:00	Partly cloudy	68°	–	6 mph W	6
13:00	Mostly cloudy	71°	–	6 mph NW	5
14:00	Mostly cloudy	71°	–	8 mph NW	5
15:00	Sunny	71°	–	8 mph NW	6
16:00	Sunny	71°	–	10 mph NW	6
17:00	Sunny	69°	–	9 mph NW	6
18:00	Sunny	66°	–	8 mph W	5
19:00	Sunny	62°	–	8 mph W	5
20:00	Sunny	58°	–	7 mph W	0
21:00	Partly cloudy	56°	–	6 mph W	0
22:00	Partly cloudy	56°	–	5 mph SW	0
23:00	Partly cloudy	56°	–	5 mph SW	0
Saturday 29/8 00:00	Partly cloudy	56°	–	5 mph SW	0
01:00	Partly cloudy	56°	–	5 mph SW	0
02:00	Partly cloudy	55°	–	5 mph SW	0
03:00	Partly cloudy	55°	–	5 mph SW	0
04:00	Partly cloudy	55°	–	5 mph SW	0
05:00	Sunny	55°	–	5 mph SW	0
06:00	Sunny	55°	–	5 mph SW	0
07:00	Sunny	55°	–	4 mph SW	4
08:00	Sunny	56°	–	4 mph SW	4
09:00	Sunny	60°	–	5 mph SW	5
10:00	Sunny	64°	–	5 mph W	5
11:00	Sunny	66°	–	7 mph W	5
12:00	Sunny	67°	–	8 mph W	5
13:00	Sunny	68°	–	10 mph W	6
14:00	Sunny	68°	–	11 mph W	5
15:00	Sunny	66°	–	11 mph W	5
16:00	Sunny	65°	–	11 mph W	5
17:00	Sunny	64°	–	11 mph W	5
18:00	Sunny	62°	–	10 mph W	5
19:00	Sunny	59°	–	9 mph W	5
20:00	Sunny	56°	–	8 mph SW	0
21:00	Sunny	56°	–	8 mph SW	0
22:00	Partly cloudy	56°	–	8 mph SW	0
23:00	Partly cloudy	56°	–	8 mph SW	0
Sunday 30/8 00:00	Partly cloudy	56°	–	7 mph SW	0
01:00	Partly cloudy	56°	–	7 mph SW	0
02:00	Partly cloudy	56°	–	8 mph W	0
03:00	Mostly cloudy	56°	–	7 mph W	0
04:00	Mostly cloudy	56°	–	8 mph W	0
05:00	Mostly cloudy	56°	–	9 mph W	0
06:00	Mostly cloudy	56°	–	8 mph W	0

Hourly

How the hourly forecast is made

Hour-by-hour numbers come from NOAA's National Blend of Models combined with ECMWF and GFS guidance, bias-corrected against nearby station observations and refreshed every hour.

Portola Valley, CA Hourly Weather

Hourly forecast · Portola Valley

48 hours — Portola Valley