Halley Grade, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Halley Grade Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
| Sunny | Clear | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 61°FHi: 16°C | Lo: 46°FLo: 8°C | Hi: 63°FHi: 17°C | Lo: 46°FLo: 8°C | Hi: 55°FHi: 13°C | Lo: 44°FLo: 7°C | Hi: 64°FHi: 18°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 700 AM PST Sun Nov 01 2026 

Halley Grade Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Halley Grade Weather Map
Halley Grade Quick Facts
Halley Grade Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1210 PM PDT Sat Oct 31 2026
Key Messages
- Winter Weather Advisory in effect through 7 AM Sunday for the Sierra elevations above 7000`
- Rain and mountain snow showers continue today into Sunday for the Sierra and surrounding areas, accompanied by isolated thunderstorm chances this afternoon and evening
- Quick moving system brings shower/isolated thunderstorm chances Tuesday-Wednesday
- Below normal temperatures continue through the weekend and into the week ahead alongside periods of breezy winds
Discussion
...
This Weekend: A posit...
Weather World