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Today | Weather | Thursday, February 26, 2026
Active Weather Warnings

Weather in Modesto, California

05:41 AM
Now
Foggy Weather
54° F
Feels Like 48°
Precipitation 1 %
Wind 7 mph
Humidity 98 %
Today
Cloudy Weather
Day 72°
Night 52°
Precipitation 3 %
Wind 9 mph
UV Index (0 - 11+) 4

Modesto Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 26, 2025)
Sunny Weather

Day

72°

Night

45°

Wind

4 mph

UV Index

4

Precipitation

0 %

Air Quality in Modesto

NOW
39 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.47 µg/m³
PM10 12.69 µg/m³
O3 0.007 ppm
NO2 6 ppb
SO2 0.1 ppb
CO 0.19 ppm
NH3 0.71 µg/m³
NO 0.05 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)
PM2.5 – 9.47 µg/m³
PM10 – 12.69 µg/m³
O3 – 13.02 µg/m³
NO2 – 11.3 µg/m³
SO2 – 0.18 µg/m³
CO – 216.07 µg/m³
NH3 – 0.71 µg/m³
NO – 0.05 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Modesto

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued February 26 at 2:20AM PST until February 26 at 10:00AM PST by NWS Sacramento CA
Feb 26, 2:20 AM → Feb 26, 10:00 AM
WHAT: Visibility one quarter mile or less in dense fog.

WHERE: Northern San Joaquin Valley and Southern Sacramento Valley.

WHEN: Until 10 AM PST this morning.

IMPACTS: Low visibility could make driving conditions hazardous.
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If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Updated: Feb 26, 4:37 AM Source: NWS Alert