Princeton, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Princeton Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY |
| Clearing | Clear | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Clear | Mostly Clear | Mostly Clear | Clear | Clear |
| Hi: 85°FHi: 29°C | Lo: 57°FLo: 14°C | Hi: 89°FHi: 32°C | Lo: 58°FLo: 14°C | Hi: 91°FHi: 33°C | Lo: 58°FLo: 14°C | Hi: 83°FHi: 28°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 54°FLo: 12°C | Hi: 81°FHi: 27°C Lo: 54°FLo: 12°C | Hi: 82°FHi: 28°C Lo: 53°FLo: 12°C | Hi: 82°FHi: 28°C Lo: 53°FLo: 12°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Tue Sep 22 2026 

Princeton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Princeton Weather Map
Princeton Quick Facts
Princeton Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 117 PM PDT Mon Sep 21 2026
Key Messages
- Periodically breezy winds and warming temperatures, peaking on Thursday with areas of Moderate HeatRisk in the Valley.
- Isolated mountain shower and thunderstorm chances (less than 10%) today along the Sierra Crest.
- Potential for unsettled weather and increased onshore winds over the weekend as a system passes to our north.
Discussion
...
...Today through Thursday...
Scattered clouds continue to move across parts of northern California today, with cooler temperatures and breezy onshore wi...
Weather World