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As of 13:36 PDT

Weather in Portola Valley, CA

82°Current weather

Portola Valley, Sunday, 9 August, 13:36

Clear. Feels like 84°. High 83°, low 58°.

Pressure29.83 inHg
Wind4 mph N
Humidity54%
Visibility6.2 mi
Dew point64°

Two-week outlook for Portola Valley, CA: week one averages a high of 78.9° and week two 86.3°, so week two runs 7.4° warmer than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 0 wet days. The nearest weekend, August 9: 83°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)78.9°55.2°0.0 in / 0 d—
2nd (August 16 – August 22)86.3°58.5°0.0 in / 0 d—

Weekend weather

Sun, August 9
Clear
83°58°
no precip.
Sat, August 15
Overcast
77°53°
no precip.
Sun, August 16
Clear
77°53°
no precip.
Sat, August 22
Overcast
93°67°
no precip.
Mon, 1081° / 58°0Partly cloudy
81 °Partly cloudy

Portola Valley, Monday, 10 August

Partly cloudy. High 81°, low 58°.

Pressure29.88 inHg
Wind5.7 mph W
Humidity37%
Visibility6.2 mi
Dew point52°
Tue, 1182° / 54°0Clear
82 °Clear

Portola Valley, Tuesday, 11 August

Clear. High 82°, low 54°.

Pressure29.94 inHg
Wind5.2 mph W
Humidity36%
Visibility6.2 mi
Dew point51°
Wed, 1278° / 55°0Clear
78 °Clear

Portola Valley, Wednesday, 12 August

Clear. High 78°, low 55°.

Pressure29.85 inHg
Wind6.4 mph W
Humidity46%
Visibility6.2 mi
Dew point54°
Thu, 1375° / 54°0Clear
75 °Clear

Portola Valley, Thursday, 13 August

Clear. High 75°, low 54°.

Pressure29.85 inHg
Wind4.5 mph SW
Humidity50%
Visibility6.2 mi
Dew point53°
Fri, 1477° / 54°0Clear
77 °Clear

Portola Valley, Friday, 14 August

Clear. High 77°, low 54°.

Pressure29.91 inHg
Wind8.2 mph W
Humidity42%
Visibility—
Dew point50°
Sat, 1577° / 53°0Overcast
77 °Overcast

Portola Valley, Saturday, 15 August

Overcast. High 77°, low 53°.

Pressure30.03 inHg
Wind7.6 mph SW
Humidity45%
Visibility—
Dew point51°
Sun, 1677° / 53°0Clear
77 °Clear

Portola Valley, Sunday, 16 August

Clear. High 77°, low 53°.

Pressure30.06 inHg
Wind6.8 mph W
Humidity44%
Visibility—
Dew point51°
Mon, 1779° / 53°0Clear
79 °Clear

Portola Valley, Monday, 17 August

Clear. High 79°, low 53°.

Pressure30.00 inHg
Wind6.2 mph W
Humidity36%
Visibility—
Dew point47°
Tue, 1882° / 53°0Clear
82 °Clear

Portola Valley, Tuesday, 18 August

Clear. High 82°, low 53°.

Pressure29.97 inHg
Wind7.4 mph W
Humidity28%
Visibility—
Dew point43°
Wed, 1984° / 56°0Mostly clear
84 °Mostly clear

Portola Valley, Wednesday, 19 August

Mostly clear. High 84°, low 56°.

Pressure29.94 inHg
Wind6.8 mph W
Humidity34%
Visibility—
Dew point49°
Thu, 2093° / 58°0Mostly clear
93 °Mostly clear

Portola Valley, Thursday, 20 August

Mostly clear. High 93°, low 58°.

Pressure29.91 inHg
Wind6.2 mph W
Humidity24%
Visibility—
Dew point48°
Fri, 2196° / 69°0Clear
96 °Clear

Portola Valley, Friday, 21 August

Clear. High 96°, low 69°.

Pressure29.91 inHg
Wind6.2 mph NW
Humidity20%
Visibility—
Dew point47°
Sat, 2293° / 67°0Overcast
93 °Overcast

Portola Valley, Saturday, 22 August

Overcast. High 93°, low 67°.

Pressure29.88 inHg
Wind6 mph W
Humidity24%
Visibility—
Dew point49°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Portola Valley, CA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.