Weather Tomorrow in San Mateo, CA
Coastal Flood AdvisoryUntil Oct 13, 3:00 PM PDT
Coastal Flood Advisory issued October 8 at 1:03PM PDT until October 13 at 3:00PM PDT by NWS San Francisco CA
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.
Heat AdvisoryUntil Oct 8, 10:00 PM PDT
Heat Advisory issued October 8 at 9:57AM PDT until October 8 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.
Friday, October 9, 2026
High 77°FLow 59°F
Clear
- Rain chance
- 3%
- Wind
- 1-13 mph
- Humidity
- 75%
- Feels like
- 59–77°F
Data source: National Weather Service (NOAA) · Forecast issued
Precipitation Timeline
No significant precipitation expected tomorrow.
Tomorrow by Hour
Local time. Rows with a 40% or higher chance of rain are shaded blue.
| Time | Sky | Temp | Rain | Wind (mph) |
|---|---|---|---|---|
| 12 AM | , Mostly Clear | 63°F | 0% | 1 W |
| 1 AM | , Mostly Clear | 62°F | 0% | 1 W |
| 2 AM | , Mostly Clear | 61°F | 0% | 1 W |
| 3 AM | , Mostly Clear | 60°F | 0% | 1 W |
| 4 AM | , Mostly Clear | 59°F | 0% | 1 W |
| 5 AM | , Mostly Clear | 59°F | 0% | 1 WSW |
| 6 AM | , Sunny | 59°F | 1% | 1 SW |
| 7 AM | , Mostly Sunny | 59°F | 1% | 1 SW |
| 8 AM | , Sunny | 59°F | 1% | 2 SW |
| 9 AM | , Sunny | 62°F | 1% | 2 SW |
| 10 AM | , Sunny | 66°F | 1% | 3 SW |
| 11 AM | , Sunny | 69°F | 1% | 5 WSW |
| 12 PM | , Sunny | 72°F | 1% | 6 WSW |
| 1 PM | , Sunny | 74°F | 1% | 7 WSW |
| 2 PM | , Sunny | 76°F | 1% | 8 SW |
| 3 PM | , Sunny | 77°F | 1% | 9 WSW |
| 4 PM | , Sunny | 76°F | 1% | 9 WSW |
| 5 PM | , Sunny | 74°F | 2% | 9 WSW |
| 6 PM | , Clear | 71°F | 2% | 9 SW |
| 7 PM | , Mostly Clear | 65°F | 2% | 8 WSW |
| 8 PM | , Mostly Clear | 63°F | 2% | 9 WSW |
| 9 PM | , Mostly Clear | 62°F | 2% | 9 SW |
| 10 PM | , Mostly Clear | 62°F | 3% | 12 SW |
| 11 PM | , Mostly Clear | 61°F | 0% | 13 SW |
What to Wear Tomorrow
Warm and comfortable — dress light
Clothing
- T-shirt or light blouse
- Shorts or light pants
Footwear
Comfortable shoes or sandals
Accessories
- Sunglasses
Conditions
- High
- 77°F
- Low
- 59°F
- Wind
- 1-13 mph
- Rain
- 3%
Enjoy your day!
Best Time to Be Outside Tomorrow
11 AM – 1 PM
Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)
98out of 100