Weather WorldO'Neill Forebay, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
O'Neill Forebay Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | | | |  | | | | |
| Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Sunny |
| Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C | Lo: 64°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 52°FLo: 11°C | Hi: 74°FHi: 23°C Lo: 51°FLo: 11°C | Hi: 74°FHi: 23°C Lo: 51°FLo: 11°C | Hi: 77°FHi: 25°C Lo: 52°FLo: 11°C | Hi: 77°FHi: 25°C Lo: 52°FLo: 11°C | Hi: 74°FHi: 23°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1141 PM PDT Thu Oct 08 2026 
O'Neill Forebay Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
O'Neill Forebay Weather Map
O'Neill Forebay Quick Facts
O'Neill Forebay Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1001 PM PDT Thu Oct 8 2026
Key Messages
1. Temperatures will remain about 5 to 10 degrees above normal Friday before a relieving cool down this weekend.
2. There is a marginal risk for excessive rainfall in the Mojave Desert and along southern portions of the Sierra Nevada mountains this coming Sunday.
3. Although low confidence, a 60-70% probability exists for 72 hour snow accumulation greater than 2 inches above 9000 feet from Sunday into Wednesday morning.
Discussion
... Today`s highs in the San Joaquin Valley were mainly i...