San Bruno, CA Hourly Weather
Hour-by-Hour Forecast
Today's Weather Breakdown
Currently 54°F and rain, partially cloudy. Today in San Bruno, CA: high of 61°F, low of 54°F with rain, partially cloudy. 100% chance of rain.
| Currently | 54°F · Rain, Partially cloudy |
| Today's High | 61°F |
| Today's Low | 54°F |
| Rain Chance | 100% |
Hour-by-Hour Temperature & Rain Probability
In San Bruno, CA today, temperatures start near 54°F in the early morning and climb toward a high of 61°F in the afternoon. Rain probability climbs through the day, reaching around 100%. The afternoon hours carry the highest precipitation risk — bring an umbrella if you plan to be outside.
Reading the Hourly Weather Forecast
The hour-by-hour table shows temperature, feels-like temperature, precipitation probability, wind speed, humidity, and UV index for each hour of the day in San Bruno. Rain probability above 40% for a given hour indicates a meaningful chance of precipitation during that window. UV index above 6 means sun protection is recommended for extended time outdoors.
Hourly forecasts are updated from live weather station data. For the full multi-day picture, see the San Bruno 10-day forecast or check tomorrow's rain forecast for precipitation timing.
Hour-by-Hour Forecast for San Bruno, CA
| Time | Temp | Feels Like | Rain | Conditions |
|---|---|---|---|---|
| 12:00 AM | 55°F | 55°F | 100% | Rain, Overcast |
| 1:00 AM | 57°F | 57°F | 81% | Rain, Partially cloudy |
| 2:00 AM | 56°F | 56°F | 78% | Rain, Partially cloudy |
| 3:00 AM | 55°F | 55°F | 84% | Rain, Partially cloudy |
| 4:00 AM | 55°F | 55°F | 80% | Rain, Partially cloudy |
| 5:00 AM | 55°F | 55°F | 69% | Rain, Partially cloudy |
| 6:00 AM | 54°F | 54°F | 60% | Rain, Partially cloudy |
| 7:00 AM | 54°F | 54°F | 65% | Rain, Partially cloudy |
| 8:00 AM | 55°F | 55°F | 57% | Rain, Partially cloudy |
| 9:00 AM | 57°F | 57°F | 82% | Rain, Partially cloudy |
| 10:00 AM | 57°F | 57°F | 68% | Rain, Partially cloudy |
| 11:00 AM | 59°F | 59°F | 71% | Rain, Partially cloudy |
| 12:00 PM | 59°F | 59°F | 77% | Rain, Partially cloudy |
| 1:00 PM | 59°F | 59°F | 87% | Rain, Overcast |
| 2:00 PM | 61°F | 61°F | 87% | Rain, Overcast |
| 3:00 PM | 61°F | 61°F | 71% | Rain, Partially cloudy |
| 4:00 PM | 61°F | 61°F | 74% | Rain, Partially cloudy |
| 5:00 PM | 60°F | 60°F | 64% | Rain, Partially cloudy |
| 6:00 PM | 59°F | 59°F | 64% | Rain, Partially cloudy |
| 7:00 PM | 57°F | 57°F | 64% | Rain, Partially cloudy |
| 8:00 PM | 56°F | 56°F | 64% | Rain, Partially cloudy |
| 9:00 PM | 56°F | 56°F | 64% | Rain, Partially cloudy |
| 10:00 PM | 55°F | 55°F | 64% | Rain, Partially cloudy |
| 11:00 PM | 55°F | 55°F | 50% | Rain, Partially cloudy |
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