Palo Alto weather
At 6:15 PM local time it was clear and 15°C (59°F). Mostly light, on-and-off rain; heavier around 6 AM, 7 AM (6.2 mm total). Best months for weather: May–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Palo Alto, California, United States.
Current conditions
- Clouds
- 9%
- Chance of rain
- 1%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 6 AM, 7 AM (6.2 mm total)
Daily Forecast
Best Time to Visit
Peak season May–OctOff season Dec–Feb
About Palo Alto weather
Is it raining in Palo Alto right now?
No. It’s clear and 15° right now. Mostly light, on-and-off rain; heavier around 6 AM, 7 AM (6.2 mm total).
What’s the weather like in Palo Alto this week?
Over the next 7 days, expect highs of 17–24° and lows of 8–14°. Rain is likely on 1 of 7 days (Sunday). The driest day looks like Monday.
Has it been raining in Palo Alto lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Palo Alto?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Palo Alto weather by month
When is the best time to visit Palo Alto?
Based on weather alone, the best time to visit Palo Alto is May–Oct, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 13°C (56°F) in December to 29°C (84°F) in August.
What is the rainiest month in Palo Alto?
December is the wettest month, with about 114 mm (4.5 in) of rain on average. July is the driest, with about 0 mm (0.0 in).
What is the hottest month in Palo Alto?
August is the warmest, with average highs of 29°C (84°F) and lows of 11°C (51°F). December is the coolest, with highs of 13°C (56°F) and lows of 4°C (38°F).
Does Palo Alto have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 114 mm (4.5 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months