Today | Weather | Sunday, August 9, 2026
Active Weather Warnings

Weather in Stockton, California

04:36 PM
Now
Sunny Weather
102° F
Feels Like 102°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 3
Humidity 20 %
Today
Sunny Weather
Day 102°
Night 64°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Stockton Weather Forecast Updated

14 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Night

Day

100°

Night

64°

Wind

6 mph

Precipitation

0 %

Air Quality in Stockton

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.68 µg/m³
PM10 16.68 µg/m³
O3 0.053 ppm
NO2 0.6 ppb
SO2 0.4 ppb
CO 0.08 ppm
NH3 0.1 µg/m³
NO 0.17 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.58.68 µg/m³
PM1016.68 µg/m³
O3103.92 µg/m³
NO21.16 µg/m³
SO20.94 µg/m³
CO90.18 µg/m³
NH30.1 µg/m³
NO0.17 µg/m³

Weather Alerts and Warnings for Stockton

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 9 at 12:24AM PDT until August 9 at 10:00PM PDT by NWS Sacramento CA
Aug 9, 12:24 AM Aug 9, 10:00 PM
WHAT: High temperatures of 101 to 107 and low temperatures of 65
to 80 expected, with Moderate to Major HeatRisk.

WHERE: The Sacramento and San Joaquin Valleys, Foothills, Coast
Range, and Sierra north of Highway 50.

WHEN: Until 10 PM PDT this evening.

IMPACTS: ot temperatures may cause heat illnesses, especially
anyone without effective cooling and/or adequate hydration.

ADDITIONAL DETAILS: Hot temperatures continue today, with areas
of Major HeatRisk. Hottest temperatures and warmest overnight lows
expected in the northern Sacramento Valley and Sierra foothills
thermal belts.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Updated: Aug 9, 4:22 PM Source: NWS Alert