Weather WorldFoothill High School, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Foothill High School Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | |  | | | |  | | | |
| Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy |
| Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 63°FLo: 17°C | Hi: 78°FHi: 26°C | Lo: 63°FLo: 17°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 62°FLo: 17°C | Hi: 84°FHi: 29°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1152 AM PDT Thu Sep 17 2026 
Foothill High School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Foothill High School Weather Map
Foothill High School Quick Facts
Foothill High School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1219 AM PDT Fri Sep 18 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
.SHORT TERM (Today through Sunday)... Low pressure over California will weaken and move inland today with high pressure aloft moving inland across California on Saturday. A low pressure system will develop off the California coast on Sunday and move inland into California on Monday.
High temperatures will warm a few degrees today and a few more degrees on S...