National Weather Service Forecast for: Monte Rio CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:26 pm PDT Jun 29, 2026
 
Overnight

Overnight: Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 52. West southwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 75. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Thursday

Thursday: Mostly sunny, with a high near 71.
Mostly Sunny

 Thursday
Night
Thursday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 51.
Mostly Clear
then Patchy
Fog
 Friday

Friday: Sunny, with a high near 74.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 53.
Mostly Clear
Lo 54 °F Hi 77 °F Lo 52 °F Hi 75 °F Lo 51 °F Hi 71 °F Lo 51 °F Hi 74 °F Lo 53 °F

 

Overnight
 
 Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm.
Tuesday
 
 Sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 52. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 75. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 4am. Otherwise, partly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening.
Thursday
 
 Mostly sunny, with a high near 71.
Thursday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 51.
Friday
 
 Sunny, with a high near 74.
Friday Night
 
 Mostly clear, with a low around 53.
Independence Day
 
 Sunny, with a high near 76.
Saturday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 53.
Sunday
 
 Mostly sunny, with a high near 72.
Sunday Night
 
 Partly cloudy, with a low around 53.
Monday
 
 Mostly sunny, with a high near 72.

 

Forecast from NOAA-NWS for Monte Rio CA.