National Weather Service Forecast for: Monte Rio CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:54 pm PST Dec 22, 2025
 
This
Afternoon
This Afternoon: A 30 percent chance of rain. Cloudy, with a steady temperature around 52. West wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
 Tonight

Tonight: Rain. Low around 50. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain
 Tuesday

Tuesday: Rain. High near 54. South southeast wind 9 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain
 Tuesday
Night
Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Southeast wind 15 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Rain
 Wednesday

Wednesday: Rain, with thunderstorms also possible after 4pm. High near 54. Southwest wind 7 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Rain
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 49. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Severe
T-Storms
 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm. High near 51. Chance of precipitation is 100%.
Showers
 Thursday
Night
Thursday Night: Rain. Cloudy, with a low around 46.
Rain
 Friday

Friday: Rain. Mostly cloudy, with a high near 50.
Rain
Hi 52 °F Lo 50 °F Hi 54 °F Lo 48 °F Hi 54 °F Lo 49 °F Hi 51 °F Lo 46 °F Hi 50 °F

Flood Watch
High Wind Watch
 

This Afternoon
 
 A 30 percent chance of rain. Cloudy, with a steady temperature around 52. West wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain. Low around 50. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Rain. High near 54. South southeast wind 9 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
 
 Rain and possibly a thunderstorm. Low around 48. Southeast wind 15 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
 
 Rain, with thunderstorms also possible after 4pm. High near 54. Southwest wind 7 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 49. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Christmas Day
 
 Showers and possibly a thunderstorm. High near 51. Chance of precipitation is 100%.
Thursday Night
 
 Rain. Cloudy, with a low around 46.
Friday
 
 Rain. Mostly cloudy, with a high near 50.
Friday Night
 
 A chance of rain. Mostly cloudy, with a low around 42.
Saturday
 
 Sunny, with a high near 52.
Saturday Night
 
 Mostly clear, with a low around 39.
Sunday
 
 Sunny, with a high near 53.
Sunday Night
 
 Partly cloudy, with a low around 40.
Monday
 
 Mostly sunny, with a high near 54.

 

Forecast from NOAA-NWS for Monte Rio CA.