See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
22°
Clear
Feels Like: 23°
Min: 12°
Max: 23°
The next few hours will be clear, with today reaching 23°C and dropping to 13°C. The coming days will be mostly clear until afternoon, returning in the evening.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:54
Sunrise
19:07
Sunset
Moon
Waxing Crescent
11:39
Moonrise
20:54
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
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Wednesday
Thursday
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Weather in Gilroy today, September 15, 2026
Gilroy starts September 15, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The opening hours look fair, as cloud stays near 8% around 11:00. Morning errands should face fewer weather interruptions.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 23°C. The air stays humid, with relative humidity between 56% and 99% and the peak around 23:00. A lighter breeze peaks around 17:00 near 8.0 km/h.
Expect persistent cloud later on, with amounts around 97% by 23:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 14.2 km on average, though it can drop toward 0.3 km in thicker cloud or showers. Sunrise is at 06:54 and sunset at 19:07, giving 12 hours 13 minutes of sunlight today.
Overall, Gilroy on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 23°C.
Frequently asked questions about weather in Gilroy
How warm does it get in Gilroy?
The warmest month in Gilroy is August, with average high temperatures of 27°C. The average temperature during this period is around 20°C.
How cold does it get in Gilroy?
The coldest month in Gilroy is February, with average low temperatures of 6°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Gilroy?
The wettest month in Gilroy is January, with an average of 108mm of precipitation.
What is the driest time of year in Gilroy?
The driest month in Gilroy is July, with an average of 0mm of precipitation.
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