Today | Weather | Saturday, May 16, 2026

Active Weather Warnings

Weather in Fresno, California

05:29 AM

Now

61° F

Feels Like 55°

Precipitation 0 %

Wind 12 mph

Humidity 57 %

Today

Day 84°

Night 55°

Precipitation 0 %

Wind 15 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Fresno Weather Forecast Updated

39 minutes ago

Last updated on May 16, 2026 at 4:50 AM

Weather Forecast History

Last Year's Weather on This Day (May 16, 2025)

Day

88°

Night

59°

Wind

6 mph

UV Index

Precipitation

1 %

Air Quality in Fresno

NOW

35 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.35 µg/m³

PM₁₀ 5.94 µg/m³

O₃ 0.038 ppm

NO₂ 0.7 ppb

SO₂ 0.1 ppb

CO 0.11 ppm

NH₃ 2.74 µg/m³

NO 0 µg/m³

PM_2.5 – 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)

PM_2.5 – 2.35 µg/m³

PM₁₀ – 5.94 µg/m³

O₃ – 74.43 µg/m³

NO₂ – 1.37 µg/m³

SO₂ – 0.35 µg/m³

CO – 122.8 µg/m³

NH₃ – 2.74 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Fresno

Severe Future Possible

Fire Weather Watch

Fire Weather Watch issued May 15 at 3:39AM PDT until May 18 at 8:00PM PDT by NWS Hanford CA

May 16, 5:00 AM → May 18, 8:00 PM

* AFFECTED AREA...Fire weather zone 579 West Side Hills on the
Coastal Range. Fire weather zone 580 San Joaquin Valley.

* WIND...GUSTING TO 35 MPH SATURDAY AND SUNDAY

* HUMIDITY...20% OR LESS SATURDAY AND SUNDAY THEN 15% OR LESS
MONDAY

* HIGHEST THREAT...FAST-MOVING GRASS FIRES

IMPACTS: any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

+ Read More

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Updated: May 15, 11:01 AM Source: NWS Alert

Severe Expected Likely

Red Flag Warning

Red Flag Warning issued May 16 at 3:57AM PDT until May 18 at 8:00PM PDT by NWS Hanford CA

May 16, 5:00 AM → May 18, 8:00 PM

* AFFECTED AREA...Fire weather zone 579 West Side Hills on the
Coastal Range. Fire weather zone 580 San Joaquin Valley.

* WIND...GUSTING TO 35 MPH SATURDAY AND SUNDAY.

* HUMIDITY...20% OR LESS SATURDAY AND SUNDAY THEN 15% OR LESS
MONDAY

* HIGHEST THREAT...FAST-MOVING GRASS FIRES

IMPACTS: Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

+ Read More

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Updated: May 16, 4:50 AM Source: NWS Alert

Weather in Fresno, California

Warning: Extreme UV Index Today: 11

Fresno Weather Forecast Updated

Day

Night

Wind

UV Index

Precipitation

Air Quality in Fresno

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for Fresno

Fire Weather Watch

Red Flag Warning

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