National Weather Service Forecast for: Lewiston CA
Issued by: National Weather Service Eureka, CA
Updated: 2:10 pm PDT May 26, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 64. West wind around 10 mph, with gusts as high as 18 mph.
Chance
Showers
 Tonight

Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 43. West wind 8 to 13 mph becoming light south southwest in the evening. Winds could gust as high as 18 mph.
Slight Chance
T-storms then
Mostly Cloudy
 Wednesday

Wednesday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 68. Calm wind becoming southwest around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Low around 46. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers then
Chance
Showers
 Thursday

Thursday: Showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 71. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely and
Patchy Fog
 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm. Low around 48. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers

 Friday

Friday: A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 72. Chance of precipitation is 40%.
Chance
Showers and
Patchy Fog
 Friday
Night
Friday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.
Slight Chance
Rain then
Mostly Cloudy
 Saturday

Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 73.
Patchy Fog
then Sunny
Hi 64 °F Lo 43 °F Hi 68 °F Lo 46 °F Hi 71 °F Lo 48 °F Hi 72 °F Lo 46 °F Hi 73 °F

 

This Afternoon
 
 A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 64. West wind around 10 mph, with gusts as high as 18 mph.
Tonight
 
 A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 43. West wind 8 to 13 mph becoming light south southwest in the evening. Winds could gust as high as 18 mph.
Wednesday
 
 Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 68. Calm wind becoming southwest around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Showers and possibly a thunderstorm. Low around 46. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 Showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 71. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Showers and possibly a thunderstorm. Low around 48. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
 
 A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 72. Chance of precipitation is 40%.
Friday Night
 
 A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.
Saturday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 73.
Saturday Night
 
 Mostly clear, with a low around 44.
Sunday
 
 Sunny, with a high near 79.
Sunday Night
 
 Clear, with a low around 49.
Monday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for Lewiston CA.