Weather WorldChapmantown, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Chapmantown Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
 |  | | | | | | | | | | |
| Clear | Sunny | Clear | Mostly Sunny | Clear | Sunny | Clear | Clear | Clear | Clear | Clear | Clear |
| Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 47°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 80°FHi: 27°C Lo: 52°FLo: 11°C | Hi: 80°FHi: 27°C Lo: 52°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 56°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 56°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Sat Oct 10 2026 
Chapmantown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Chapmantown Weather Map
Chapmantown Quick Facts
Chapmantown Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 233 PM PDT Sat Oct 10 2026
Key Messages
- Red Flag Warning in effect from 7 AM Sunday to 5 AM Monday due to gusty north winds and low relative humidity for Northern Sacramento Valley and adjacent foothills.
- Pattern chance this weekend-early next week: cooler temperatures, chances for precipitation, isolated thunderstorms, and mountain snow.
- Potential for first measurable snow of the season in the Sierra Sunday PM - Monday, south of US 50 and above 6000 feet.
- Lingering mountain showers with continuing below-normal temperature...