National Weather Service Forecast for: Jamestown CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:20 am PST Dec 5, 2025
 
Overnight

Overnight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 39. Calm wind.
Patchy Fog
 Friday

Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 53. Light and variable wind.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 42. Calm wind.
Patchy Fog
 Saturday

Saturday: Sunny, with a high near 57. Light and variable wind.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 43. Calm wind.
Mostly Clear
 Sunday

Sunday: Mostly sunny, with a high near 58.
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 43.
Partly Cloudy
 Monday

Monday: Sunny, with a high near 59.
Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 44.
Partly Cloudy
Lo 39 °F Hi 53 °F Lo 42 °F Hi 57 °F Lo 43 °F Hi 58 °F Lo 43 °F Hi 59 °F Lo 44 °F

 

Overnight
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 39. Calm wind.
Friday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 53. Light and variable wind.
Friday Night
 
 Patchy fog after 10pm. Otherwise, mostly clear, with a low around 42. Calm wind.
Saturday
 
 Sunny, with a high near 57. Light and variable wind.
Saturday Night
 
 Mostly clear, with a low around 43. Calm wind.
Sunday
 
 Mostly sunny, with a high near 58.
Sunday Night
 
 Partly cloudy, with a low around 43.
Monday
 
 Sunny, with a high near 59.
Monday Night
 
 Partly cloudy, with a low around 44.
Tuesday
 
 Mostly sunny, with a high near 62.
Tuesday Night
 
 Partly cloudy, with a low around 46.
Wednesday
 
 Mostly sunny, with a high near 62.
Wednesday Night
 
 Mostly clear, with a low around 46.
Thursday
 
 Sunny, with a high near 63.

 

Forecast from NOAA-NWS for Jamestown CA.