National Weather Service Forecast for: Porterville CA
Issued by: National Weather Service San Joaquin Valley/Hanford, CA
Updated: 3:57 pm PST Dec 22, 2025
 
Tonight

Tonight: Cloudy, with a low around 53. Calm wind.
Cloudy

 Tuesday

Tuesday: A 30 percent chance of rain after 4pm. Cloudy, with a high near 64. Calm wind becoming south southeast around 5 mph in the afternoon.
Cloudy then
Chance Rain
 Tuesday
Night
Tuesday Night: Rain, mainly after 10pm. Low around 56. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Wednesday

Wednesday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. High near 59. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers

 Wednesday
Night
Wednesday Night: Rain. Low around 51. East southeast wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Christmas
Day
Christmas Day: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 56. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 48. East southeast wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Showers

 Friday

Friday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 50. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
then Chance
Rain
Lo 53 °F Hi 64 °F Lo 56 °F Hi 59 °F Lo 51 °F Hi 56 °F Lo 48 °F Hi 50 °F Lo 42 °F

Flood Watch
 

Tonight
 
 Cloudy, with a low around 53. Calm wind.
Tuesday
 
 A 30 percent chance of rain after 4pm. Cloudy, with a high near 64. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
 
 Rain, mainly after 10pm. Low around 56. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. High near 59. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
 
 Rain. Low around 51. East southeast wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
 
 Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 56. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 48. East southeast wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 50. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
 
 A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 47. Calm wind becoming west northwest around 5 mph.
Saturday Night
 
 Partly cloudy, with a low around 37. Calm wind.
Sunday
 
 Mostly sunny, with a high near 47. Calm wind becoming west northwest around 5 mph.
Sunday Night
 
 Partly cloudy, with a low around 38. Calm wind.
Monday
 
 A 10 percent chance of rain. Mostly sunny, with a high near 48. Calm wind becoming west northwest around 5 mph.

 

Forecast from NOAA-NWS for Porterville CA.