National Weather Service Forecast for: Rio Dell CA
Issued by: National Weather Service Eureka, CA
Updated: 2:46 pm PDT Aug 19, 2026
 
Overnight

Overnight: Patchy fog after 2am. Otherwise, cloudy, with a low around 53. Calm wind.
Patchy Fog

 Thursday

Thursday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 66. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Thursday
Night
Thursday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.
Mostly Cloudy
then Patchy
Fog
 Friday

Friday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Patchy Fog
then Partly
Sunny
 Friday
Night
Friday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 52. Northwest wind 5 to 7 mph becoming calm in the evening.
Mostly Cloudy
then Patchy
Fog
 Saturday

Saturday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 63. Light north wind becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 53.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 68.
Partly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 54.
Mostly Cloudy
Lo 53 °F Hi 66 °F Lo 53 °F Hi 65 °F Lo 52 °F Hi 63 °F Lo 53 °F Hi 68 °F Lo 54 °F

 

Overnight
 
 Patchy fog after 2am. Otherwise, cloudy, with a low around 53. Calm wind.
Thursday
 
 Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 66. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Thursday Night
 
 Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.
Friday
 
 Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Friday Night
 
 Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 52. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
 
 Patchy fog before 8am. Otherwise, partly sunny, with a high near 63. Light north wind becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
 
 Mostly cloudy, with a low around 53.
Sunday
 
 Partly sunny, with a high near 68.
Sunday Night
 
 Mostly cloudy, with a low around 54.
Monday
 
 Partly sunny, with a high near 69.
Monday Night
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 54.
Tuesday
 
 Patchy fog. Otherwise, partly sunny, with a high near 67.
Tuesday Night
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 53.
Wednesday
 
 Patchy fog. Otherwise, partly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Rio Dell CA.