See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
25°
Clear
Feels Like: 29°
Min: 19°
Max: 25°
The next few hours will be overcast, with today reaching 25°C and dropping to 19°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
06:39
Sunrise
18:51
Sunset
Moon
Waxing Crescent
11:13
Moonrise
20:46
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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Humidity
Weather in Mission Viejo today, September 15, 2026
Mission Viejo 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 temperature range runs from about 19°C up to 25°C. The air stays humid, with relative humidity between 56% and 83% and the peak around 21:00. A lighter breeze peaks around 14:00 near 4.1 km/h.
Expect persistent cloud later on, with amounts around 100% by 21:00. Sunshine remains the exception, not the rule. Expect visibility around 16.1 km. Daylight runs from 06:39 to 18:51, lasting 12 hours 11 minutes of sunlight today.
In short, September 15, 2026 looks like a fine day in Mission Viejo for being outside, peaking around 25°C.
Frequently asked questions about weather in Mission Viejo
How warm does it get in Mission Viejo?
The warmest month in Mission Viejo is August, with average high temperatures of 24°C. The average temperature during this period is around 22°C.
How cold does it get in Mission Viejo?
The coldest month in Mission Viejo is February, with average low temperatures of 11°C. The average temperature during this period is around 14°C.
What is the wettest time of year in Mission Viejo?
The wettest month in Mission Viejo is January, with an average of 70mm of precipitation.
What is the driest time of year in Mission Viejo?
The driest month in Mission Viejo is July, with an average of 1mm of precipitation.
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