National Weather Service Forecast for: Monte Rio CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:26 am PDT May 26, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 64. Northwest wind around 15 mph, with gusts as high as 28 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 48. Northwest wind 5 to 14 mph, with gusts as high as 25 mph.
Mostly Clear

Wednesday

Wednesday: Mostly sunny, with a high near 65. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Mostly Sunny

Wednesday
Night
Wednesday Night: A slight chance of rain before 3am, then a slight chance of rain after 4am.  Mostly cloudy, with a low around 50. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.
Slight Chance
Rain
Thursday

Thursday: A 30 percent chance of rain before 11am.  Mostly sunny, with a high near 64. Light and variable wind becoming southwest 5 to 8 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Mostly
Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 50.
Partly Cloudy

Friday

Friday: Mostly sunny, with a high near 65.
Mostly Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 50.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 71.
Sunny

Hi 64 °F Lo 48 °F Hi 65 °F Lo 50 °F Hi 64 °F Lo 50 °F Hi 65 °F Lo 50 °F Hi 71 °F

 

This Afternoon
 
Sunny, with a high near 64. Northwest wind around 15 mph, with gusts as high as 28 mph.
Tonight
 
Mostly clear, with a low around 48. Northwest wind 5 to 14 mph, with gusts as high as 25 mph.
Wednesday
 
Mostly sunny, with a high near 65. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
A slight chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 50. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
 
A 30 percent chance of rain before 11am. Mostly sunny, with a high near 64. Light and variable wind becoming southwest 5 to 8 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
Partly cloudy, with a low around 50.
Friday
 
Mostly sunny, with a high near 65.
Friday Night
 
Mostly clear, with a low around 50.
Saturday
 
Sunny, with a high near 71.
Saturday Night
 
Mostly clear, with a low around 50.
Sunday
 
Sunny, with a high near 75.
Sunday Night
 
Mostly clear, with a low around 52.
Monday
 
Sunny, with a high near 75.

 

Forecast from NOAA-NWS for Monte Rio CA.