See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:55
Sunrise
19:11
Sunset
Moon
Waxing Crescent
10:40
Moonrise
20:25
Moonset
Daily Forecast
Monday
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Orinda.
UV Index
Humidity
Weather in Orinda tomorrow, September 15, 2026
Orinda is set for a fine, sunny day on September 15, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Cloud leads the morning, peaking close to 100% near 00:00. Sunshine has little room until later in the day.
The day peaks near 23°C and cools toward 13°C. Relative humidity sits between 49% and 88%, reaching its peak around 20:00. A lighter breeze peaks around 10:00 near 4.8 km/h.
Afternoon conditions open up, holding cloud close to 27% near 20:00. The day finishes on a milder, brighter note. Expect visibility near 16.0 km, with poorer spells close to 14.6 km. Daylight runs from 06:56 to 19:10, lasting 12 hours 13 minutes of sunlight today.
Overall, Orinda on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 23°C.
Frequently asked questions about weather in Orinda
How warm does it get in Orinda?
The warmest month in Orinda is September, with average high temperatures of 28°C. The average temperature during this period is around 20°C.
How cold does it get in Orinda?
The coldest month in Orinda is December, with average low temperatures of 6°C. The average temperature during this period is around 10°C.
What is the wettest time of year in Orinda?
The wettest month in Orinda is January, with an average of 114mm of precipitation.
What is the driest time of year in Orinda?
The driest month in Orinda is July, with an average of 0mm of precipitation.
Explore more weather forecasts
- Lafayette, California
- New York City, New York
- Moraga, California
- Los Angeles, California
- Piedmont, California
- Brooklyn, New York
- Berkeley, California
- Chicago, Illinois
- Albany, California
- Houston, Texas
- Emeryville, California
- Queens, New York
- Walnut Creek, California
- Phoenix, Arizona
- Oakland, California
- Philadelphia, Pennsylvania
