Lost Isle, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Lost Isle Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Mostly Sunny | Patchy Fog | Clearing | Patchy Fog | Patchy Fog | Clear | Sunny | Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Mostly Clear |
| Hi: 69°FHi: 21°C | Lo: 47°FLo: 8°C | Hi: 72°FHi: 22°C | Lo: 46°FLo: 8°C | Hi: 71°FHi: 22°C | Lo: 46°FLo: 8°C | Hi: 74°FHi: 23°C | Lo: 47°FLo: 8°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C | Hi: 72°FHi: 22°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1032 AM PST Wed Nov 04 2026 

Lost Isle Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Lost Isle Weather Map
Lost Isle Quick Facts
Lost Isle Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1233 AM PST Wed Nov 4 2026
Key Messages
- Mostly dry weather, above normal temperatures, and periodically breezy north to east winds through the weekend and into next week
- Slight chance for light rain showers in Shasta County Sunday into next week
- Potential shift toward active weather pattern mid to late next week
Discussion
...
Today-Saturday:
Troughing continues ejecting eastward early this morning with a period of northwesterly flow and rising heights aloft building in through the end of the week. This will result in a few pe...
Weather World