Weather Tomorrow in San Jose, CA
Heat AdvisoryUntil Sep 9, 4:00 PM
Heat Advisory issued September 8 at 7:33PM PDT until September 10 at 10:00PM PDT by NWS San Francisco CA
Hydration 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.
Wednesday, September 9, 2026
Precip chance
2%
Wind
1-12 mph
Humidity
36%
Feels like
95–72°F
Data source: National Weather Service (NOAA) · Updated 32 min ago
Tomorrow by Hour
| Time | Temp | Condition | Rain % | Wind | ||
|---|---|---|---|---|---|---|
| 7 AM☽ | 71°F | Partly Cloudy | 1% | 2 mph W | ||
| 8 AM☽ | 71°F | Mostly Cloudy | 1% | 1 mph NNW | ||
| 9 AM☽ | 70°F | Partly Cloudy | 1% | 1 mph E | ||
| 10 AM☽ | 70°F | Mostly Cloudy | 1% | 1 mph N | ||
| 11 AM☽ | 70°F | Mostly Cloudy | 1% | 1 mph E | ||
| 12 PM☽ | 70°F | Mostly Cloudy | 1% | 1 mph NW | ||
| 1 PM | 70°F | Mostly Sunny | 1% | 1 mph W | ||
| 2 PM | 70°F | Mostly Sunny | 1% | 1 mph N | ||
| 3 PM | 72°F | Mostly Sunny | 1% | 2 mph NW | ||
| 4 PM | 76°F | Mostly Sunny | 1% | 1 mph NNW | ||
| 5 PM | 81°F | Mostly Sunny | 1% | 1 mph NW | ||
| 6 PM | 86°F | Mostly Sunny | 1% | 1 mph NNW | ||
| 7 PM | 92°F | Sunny | 1% | 2 mph NW | ||
| 8 PM | 94°F | Sunny | 1% | 3 mph NW | ||
| 9 PM | 96°F | Sunny | 1% | 6 mph NW | ||
| 10 PM | 97°F | Sunny | 0% | 8 mph NW | ||
| 11 PM | 96°F | Sunny | 2% | 9 mph NW | ||
| 12 AM | 95°F | Sunny | 0% | 12 mph NNW | ||
| 1 AM☽ | 93°F | Mostly Clear | 0% | 10 mph NW | ||
| 2 AM☽ | 88°F | Mostly Clear | 0% | 7 mph NW | ||
| 3 AM☽ | 83°F | Partly Cloudy | 0% | 5 mph NW | ||
| 4 AM☽ | 81°F | Partly Cloudy | 0% | 3 mph NW | ||
| 5 AM☽ | 80°F | Partly Cloudy | 0% | 2 mph NW | ||
| 6 AM☽ | 78°F | Partly Cloudy | 0% | 1 mph S | ||
Precipitation Timeline
What to Wear Tomorrow
Extreme heat — stay cool and protected
Clothing
- • Lightest possible clothing
- • Wide-brim hat
- • UV-protective shirt if outdoors
Footwear
Breathable sandals
Accessories
- • Sunglasses
- • Sunscreen
Conditions
High: 97°F
Low: 70°F
Wind: 1-12 mph
Rain: 2%
Big temperature swing (70°F to 97°F) — dress in removable layers.
Best Time to Be Outside Tomorrow
Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)
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