See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
13°
Clear
Feels Like: 22°
Min: 13°
Max: 27°
The next few hours will be clear, with today reaching 27°C and dropping to 15°C. The coming days will be partly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:56
Sunrise
19:09
Sunset
Moon
Waxing Crescent
11:43
Moonrise
20:55
Moonset
Daily Forecast
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Wednesday
Thursday
Friday
Saturday
Sunday
Monday
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Thursday
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Weather in Palo Alto today, September 15, 2026
Sunshine leads the day in Palo Alto on September 15, 2026, with a patch of cloud building near 23:00. The broader outlook stays fair despite that temporary thickening. Expect a brighter morning, with limited cloud around 10% by 07:00. Conditions start on a settled note.
Temperatures climb from an overnight low near 13°C toward a daytime high of about 27°C. Expect humidity between 35% and 93%, most humid near 06:00. Expect gentle winds, highest near 17:00 at 6.6 km/h.
Expect a more open afternoon, with limited cloud around 34% by 23:00. Residual damp risk should be lower than earlier. Horizontal visibility sits around 15.9 km, briefly nearer 14.2 km. Daylight runs from 06:56 to 19:09, lasting 12 hours 13 minutes of sunlight today.
Taken together, settled sunshine in Palo Alto on September 15, 2026 makes outdoor timing easier, with highs near 27°C.
Frequently asked questions about weather in Palo Alto
How warm does it get in Palo Alto?
The warmest month in Palo Alto is September, with average high temperatures of 24°C. The average temperature during this period is around 18°C.
How cold does it get in Palo Alto?
The coldest month in Palo Alto is February, with average low temperatures of 8°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Palo Alto?
The wettest month in Palo Alto is January, with an average of 113mm of precipitation.
What is the driest time of year in Palo Alto?
The driest month in Palo Alto is July, with an average of 0mm of precipitation.
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