10-day forecast for Portola, CA: 51° to 95°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
95°
Best day: Sunday, August 9
75°
Worst day: Sunday, August 16
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1093° / 63°0
Morning70°feels 68°
Afternoon92°feels 88°
Evening78°feels 77°
Overnight64°feels 62°
93 °
Portola, Monday, 10 August
Clear. High 93°, low 63°.
Pressure29.88 inHg
Wind14.8 mph SW
Humidity13%
Visibility6.2 mi
Dew point32°
Tue, 1190° / 58°0
Morning71°feels 69°
Afternoon90°feels 86°
Evening70°feels 68°
Overnight59°feels 55°
90 °
Portola, Tuesday, 11 August
Clear. High 90°, low 58°.
Pressure29.91 inHg
Wind12.5 mph SW
Humidity15%
Visibility6.2 mi
Dew point36°
Wed, 1288° / 57°0
Morning69°feels 67°
Afternoon88°feels 85°
Evening68°feels 66°
Overnight58°feels 55°
88 °
Portola, Wednesday, 12 August
Clear. High 88°, low 57°.
Pressure29.83 inHg
Wind13 mph SW
Humidity19%
Visibility6.2 mi
Dew point39°
Thu, 1381° / 55°0.01
Morning67°feels 66°
Afternoon78°feels 76°
Evening64°feels 62°
Overnight59°feels 57°
81 °
Portola, Thursday, 13 August
Light rain. High 81°, low 55°.
Pressure29.77 inHg
Wind13.5 mph SW
Humidity22%
Visibility—
Dew point36°
Fri, 1485° / 53°0
Morning71°feels 68°
Afternoon82°feels 79°
Evening63°feels 61°
Overnight57°feels 55°
85 °
Portola, Friday, 14 August
Clear. High 85°, low 53°.
Pressure29.83 inHg
Wind10.8 mph SW
Humidity16%
Visibility—
Dew point32°
Sat, 1587° / 51°0
Morning70°feels 68°
Afternoon83°feels 80°
Evening63°feels 61°
Overnight58°feels 56°
87 °
Portola, Saturday, 15 August
Mostly clear. High 87°, low 51°.
Pressure29.88 inHg
Wind13.9 mph SW
Humidity14%
Visibility—
Dew point29°
Sun, 1675° / 53°0
Morning67°feels 65°
Afternoon72°feels 70°
Evening58°feels 57°
Overnight55°feels 54°
75 °
Portola, Sunday, 16 August
Overcast. High 75°, low 53°.
Pressure30.03 inHg
Wind6.7 mph SW
Humidity26%
Visibility—
Dew point36°
Mon, 1784° / 51°0
Morning66°feels 65°
Afternoon81°feels 78°
Evening64°feels 62°
Overnight57°feels 55°
84 °
Portola, Monday, 17 August
Overcast. High 84°, low 51°.
Pressure30.03 inHg
Wind13.7 mph SW
Humidity18%
Visibility—
Dew point33°
Tue, 1892° / 53°0
Morning73°feels 71°
Afternoon89°feels 85°
Evening69°feels 67°
Overnight63°feels 61°
92 °
Portola, Tuesday, 18 August
Clear. High 92°, low 53°.
Pressure29.97 inHg
Wind13.4 mph W
Humidity15%
Visibility—
Dew point35°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Portola, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.