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Tustin, CA Weather Forecast

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Tustin, CA Weather Forecast

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Tustin CA weather - Mostly Clear - 85°F
Mostly Clear
85°F
Updated 3:38 pm
Feels Like 84°F
Humidity 44%
Wind VRB 7 mph
Barometer  29.82 in
Dew Point 61°F
Tustin CA weather - Mostly Clear - 29°C
Mostly Clear
29°C
Updated 3:38 pm
Feels Like 29°C
Humidity 44%
Wind VRB 11 km/h
Barometer  101 kPa
Dew Point 16°C
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Tustin Weather Forecast

TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Tustin, CA Weather - Tonight Mostly Cloudy Tustin, CA Weather - Sunday Partly Cloudy Tustin, CA Weather - Sunday Night Partly Cloudy Tustin, CA Weather - Monday Partly Cloudy Tustin, CA Weather - Monday Night Mostly Clear Tustin, CA Weather - Tuesday Mostly Sunny Tustin, CA Weather - Tuesday Night Mostly Clear Tustin, CA Weather - Wednesday Mostly Sunny Tustin, CA Weather - Wednesday Night Mostly Clear Tustin, CA Weather - Thursday Partly Cloudy Tustin, CA Weather - Thursday Night Mostly Clear Tustin, CA Weather - Friday Partly Cloudy
Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Sunny Mostly Clear Mostly Sunny Mostly Clear Partly Cloudy Mostly Clear Partly Cloudy
Lo: 69°FLo: 21°C Hi: 86°FHi: 30°C
 Lo: 66°FLo: 19°C Hi: 81°FHi: 27°C
 Lo: 62°FLo: 17°C Hi: 88°FHi: 31°C
 Lo: 69°FLo: 21°C Hi: 91°FHi: 33°C
 Lo: 68°FLo: 20°C Hi: 90°FHi: 32°C
 Lo: 68°FLo: 20°C Hi: 90°FHi: 32°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1257 PM PDT Sat Sep 26 2026 Tustin, CA Weather - WeatherWorld.com

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Issued: 1258 PM PDT Sat Sep 26 2026

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...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

This afternoon...Temperatures are near or a few degrees higher than at this time yesterday. Today will likely be warmer than yesterday, with high temperatures anywhere from a few degrees above normal in the deserts to as much as 10-15 degrees above normal in the inland valleys of San Diego County. There were patchy marine layer low clouds this morning whic...