Tustin, California Weather Forecast

Orange County 33.73°N, 117.81°W Pop. 79,348

Today in Tustin: clear skies with a high near 78°F and a low around 56°F. Rain chance 2%. No day tops a 20% rain chance through Friday. Highs run 73 to 82°F through Friday.

Forecast updated 7:05 PM PDT, Oct 23

Active Weather Alerts

7-Day Forecast for Tustin

Today 10/24
Clear sky
78°56°
Sun 10/25
Clear sky
81°59°
Mon 10/26
Clear sky
82°60°
Tue 10/27
Clear sky
79°58°
Wed 10/28
Mostly sunny
79°58°
Thu 10/29
Partly cloudy
75°60°
Fri 10/30
Mostly sunny
11%
73°59°
Hourly charts, 15-day outlook and more for Tustin in Local Wx →

Next 24 Hours

Now1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 PM10 PM11 PM
SkyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear sky
Temp61°60°59°58°57°57°57°56°58°64°68°72°74°76°78°77°76°75°72°69°67°66°65°64°
Rain2%1%1%1%1%1%1%1%1%1%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
WindNE 3E 3E 3E 3E 3ENE 2E 2ENE 2E 3NE 1NW 0W 0W 2W 3W 5WSW 6WSW 6WSW 6WSW 4WSW 3S 3SE 3ESE 2ESE 2

Growing Conditions

Growing degree days
4,321
since Apr 1, base 50°F
Rain, last 30 days
1.05 in
model analysis
Rain, year to date
7.39 in
since Jan 1
2-inch soil temperature
68°F
yesterday, daily average
Reference ET, last 7 days
1.14 in
FAO-56 grass reference
Through Oct 22. Season totals use model analysis for this point and update every morning. Soil, ET and spray tools for Tustin →

Current Stats & Observations

Ag Wx Pro Save locations, 15-day forecasts, daily briefings, and professional-grade meteorological tools
Get Ag Wx Pro

NWS Forecast

About Tustin Weather

Tustin sits at about 108 feet above sea level in Orange County, California. About 79,348 people live in the Tustin area. Official forecasts and warnings for the area come from the National Weather Service SGX office, and the nearest NEXRAD radar site is KSOX. The city is in USDA plant hardiness zone 10a, where the coldest winter night typically falls between 30 to 35°F. Freezing temperatures are rare here.