National Weather Service Forecast for: San Joaquin CA
Issued by: National Weather Service San Joaquin Valley/Hanford, CA
Updated: 4:57 pm PST Dec 17, 2025
 
Tonight

Tonight: Patchy dense fog. Otherwise, increasing clouds, with a low around 46. Calm wind becoming northeast around 5 mph.
Patchy Dense
Fog
 Thursday

Thursday: Areas of dense fog. Otherwise, mostly cloudy, with a high near 47. Calm wind.
Areas Dense
Fog
 Thursday
Night
Thursday Night: Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Patchy Dense
Fog
 Friday

Friday: Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 47. Calm wind becoming north northwest around 5 mph.
Areas Fog

 Friday
Night
Friday Night: A 20 percent chance of rain. Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 47. Calm wind.
Slight Chance
Rain and
Patchy Fog
 Saturday

Saturday: A 20 percent chance of rain. Cloudy, with a high near 47. Calm wind becoming southeast around 5 mph.
Slight Chance
Rain
 Saturday
Night
Saturday Night: A 30 percent chance of rain. Cloudy, with a low around 47. Southeast wind around 5 mph.
Chance Rain

 Sunday

Sunday: A 40 percent chance of rain. Cloudy, with a high near 47. Southeast wind around 5 mph.
Chance Rain

 Sunday
Night
Sunday Night: A 40 percent chance of rain. Cloudy, with a low around 47. South southeast wind around 5 mph.
Chance Rain
Lo 46 °F Hi 47 °F Lo 44 °F Hi 47 °F Lo 47 °F Hi 47 °F Lo 47 °F Hi 47 °F Lo 47 °F

 

Tonight
 
 Patchy dense fog. Otherwise, increasing clouds, with a low around 46. Calm wind becoming northeast around 5 mph.
Thursday
 
 Areas of dense fog. Otherwise, mostly cloudy, with a high near 47. Calm wind.
Thursday Night
 
 Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Friday
 
 Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 47. Calm wind becoming north northwest around 5 mph.
Friday Night
 
 A 20 percent chance of rain. Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 47. Calm wind.
Saturday
 
 A 20 percent chance of rain. Cloudy, with a high near 47. Calm wind becoming southeast around 5 mph.
Saturday Night
 
 A 30 percent chance of rain. Cloudy, with a low around 47. Southeast wind around 5 mph.
Sunday
 
 A 40 percent chance of rain. Cloudy, with a high near 47. Southeast wind around 5 mph.
Sunday Night
 
 A 40 percent chance of rain. Cloudy, with a low around 47. South southeast wind around 5 mph.
Monday
 
 A 40 percent chance of rain. Cloudy, with a high near 60. Southeast wind around 5 mph.
Monday Night
 
 A 30 percent chance of rain. Cloudy, with a low around 48. West northwest wind around 5 mph.
Tuesday
 
 Rain likely. Cloudy, with a high near 56. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain likely. Cloudy, with a low around 51. Southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Rain. High near 56. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

 

Forecast from NOAA-NWS for San Joaquin CA.