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San Jose, CA weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for San Jose, CA. Always follow local warnings and emergency instructions.

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Weather status

Heat Advisory

Heat Advisory issued September 7 at 10:27AM PDT until September 10 at 10:00PM PDT by NWS San Francisco CA Expires Thu, 10:00 PM PDT.

View alert detailsOfficial NWS ↗
Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

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What’s next

Hourly forecast

⌖ San Jose, CA

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for San Jose, CA. Forecasts and alerts update from NOAA and the National Weather Service.

76°Clear0% rain
72°Clear0% rain
69°Clear0% rain
67°Clear0% rain
65°Clear0% rain
64°Clear0% rain
63°Clear0% rain
63°Clear0% rain

Next 24 hours

Rain Timeline

No rain expected

No meaningful precipitation is expected in the official hourly forecast.

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Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
76°61°

Clear

Precipitation
0%
Wind
WSW 0 to 7 mph
Sunrise
6:44 AM
Sunset
7:29 PM

Tue

90°68°

Mostly Sunny

Precipitation
1%
Wind
NNW 0 to 7 mph
Sunrise
6:45 AM
Sunset
7:28 PM

Wed

95°72°

Partly Sunny

Precipitation
1%
Wind
NNW 1 to 12 mph
Sunrise
6:46 AM
Sunset
7:26 PM

Thu

91°63°

Sunny

Precipitation
1%
Wind
WNW 1 to 13 mph
Sunrise
6:46 AM
Sunset
7:25 PM

Fri

85°59°

Sunny

Precipitation
0%
Wind
WNW 2 to 12 mph
Sunrise
6:47 AM
Sunset
7:23 PM

Sat

81°58°

Sunny

Precipitation
1%
Wind
WNW 3 to 14 mph
Sunrise
6:48 AM
Sunset
7:22 PM

Sun

81°58°

Sunny

Precipitation
1%
Wind
W 5 to 14 mph
Sunrise
6:49 AM
Sunset
7:20 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather guidance for your areaPlan with the complete forecast

Use current official weather information for San Jose, CA before making weather-sensitive plans.

Safety guides

Weather for a healthier day

Healthy Weather

Real Feel77°F
Use caution walking outside

Heat Advisory is active. Review the official alert before going outside.

WindNNW7 mph
Best walk timeBetter weather window: 8 PM–10 PM

Walking: 0% average rain chance, near 71°F, with winds near 4 mph. Review the active Heat Advisory.

Official EPA AirNowLocal air qualitySan Jose, CA
View AQI +
Full air-quality page →AirNow details ↗Smoke and fire map ↗
More weather details
Wind gustsNot reported
Rain now0%next hour
Humidity47%current
UV indexCheckingEPA forecast

Wind impact: Light wind with little expected outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure29.89 in
Visibility10.0 mi
Peak rain chance0%
Dew point55°F
Active alerts1

Official risk outlooks

These national tools add expert storm, heavy-rain and flooding context to your local forecast.

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Official tropical weather

Hurricane center

NOAA National Hurricane Center updates, outlooks, and storm resources in one place.

Simple, useful help

Weather safety guides

Quick answers for heat, storms, flooding and hurricane preparation—kept separate so your main weather page stays clean.

View all guides →

Hot weather

Heat and sun safety

Plan outdoor time and recognize dangerous heat.

Severe weather

Storms and lightning

Know when to move indoors and where to shelter.

Travel safety

Flooding and driving

Avoid flooded roads and prepare before a trip.

Stay weather-ready

Active NWS alerts

Weather safety ↗

Moderate · Expected

Heat Advisory

Applies to: San Francisco; Marin Coastal Range; Sonoma Coastal Range; North Bay Interior Mountains; Coastal North Bay Including Point Reyes National Seashore; North Bay Interior Valleys; San Francisco Bay Shoreline; San Francisco Peninsula Coast; East Bay Interior Valleys; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Eastern Santa Clara Hills; East Bay Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur CoastIssued by: NWS San Francisco CAHeat Advisory issued September 7 at 10:27AM PDT until September 10 at 10:00PM PDT by NWS San Francisco CA
Alert details* WHAT...Hot conditions with temperatures 10 to 20 degrees above normal. * WHERE...Bay Area and Central Coast. * WHEN...From 10 AM Wednesday to 10 PM PDT Thursday. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. Hot conditions can cause heat illnesses.
Safety instructionsHydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
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