Today | Weather | Wednesday, November 5, 2025

Active Weather Warnings

Weather in Hayward, California

06:22 AM

Now

57° F

Feels Like 48°

Precipitation 78 %

Wind 21 mph

Humidity 83 %

Today

Day 66°

Night 54°

Precipitation 93 %

Wind 20 mph

UV Index (0 - 11+) 1

Hayward Weather Forecast Updated

40 minutes ago

Last updated on November 05, 2025 5:41 AM

Weather Forecast History

Last Year's Weather on This Day (November 5, 2024)

Day

73°

Night

57°

Wind

12 mph

Precipitation

1 %

Air Quality in Hayward

NOW

45 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 6.49 µg/m³

PM₁₀ 11.63 µg/m³

O₃ 0.048 ppm

NO₂ 0.4 ppb

SO₂ 0.2 ppb

CO 0.10 ppm

NH₃ 0 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 – 6.49 µg/m³

PM₁₀ – 11.63 µg/m³

O₃ – 94.58 µg/m³

NO₂ – 0.76 µg/m³

SO₂ – 0.55 µg/m³

CO – 109.7 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Hayward

Moderate Expected Likely

Wind Advisory

Wind Advisory issued November 4 at 8:14PM PST until November 5 at 4:00PM PST by NWS San Francisco CA

Nov 4, 10:00 PM → Nov 5, 4:00 PM

WHAT: Southerly winds 25 to 35 mph with gusts up to 45 mph
expected.

WHERE: The East Bay and San Francisco Bay Shoreline, North Bay
Interior Mountains and Valleys, The Santa Cruz Mountains, San
Francisco, and San Francisco Peninsula Coast.

WHEN: Until 4 PM PST Wednesday.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: Isolated gusts to 55 mph possible along North
Bay coastal areas and ridgetops Wednesday morning as the cold
front passes through. Wind gusts may exceed 60 mph in the regions
higher peaks.

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Remain in the lower levels of your home during the strongest winds, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind.

Updated: Nov 5, 5:41 AM Source: NWS Alert

Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued November 4 at 11:13PM PST until November 8 at 2:00PM PST by NWS San Francisco CA

Nov 4, 11:13 PM → Nov 8, 2:00 PM

WHAT: Up to 1.2 ft of inundation above ground level is
possible in low lying areas near shorelines and tidal
waterways.

WHERE: Bayshore locations along the San Francisco Bay and San
Pablo Bay.

WHEN: From 8 AM Tuesday to 2 PM PST Saturday.

IMPACTS: Flooding of lots, parks, and roads with only
isolated road closures expected.

ADDITIONAL DETAILS: At the San Francisco tidal gauge high
tide is expected to be 1.0 ft above normal (6.9 ft MLLW) at
10:18 AM Wednesday, 1.2 ft above normal (7.0 ft MLLW) at 10:58
AM Thursday, 1.1 ft above normal (7.0 ft MLLW) at 11:42 AM
Friday, and 0.9 ft above normal (6.7 ft MLLW) at 12:31 PM
Saturday. High tide timing varies up to 90 minutes earlier or
later along the coast and throughout the Bay respectfully.

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If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Updated: Nov 5, 5:41 AM Source: NWS Alert