National Weather Service Forecast for: Happy Valley OR
Issued by: National Weather Service Portland, OR
Updated: 10:41 pm PST Dec 4, 2025
 
Tonight

Tonight: Rain. Low around 44. South southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Friday

Friday: Rain, mainly before 2pm. High near 54. Breezy, with a southwest wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Breezy. Rain
then Rain
Likely
 Friday
Night
Friday Night: Rain. Low around 47. Breezy, with a southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Rain and
Breezy
 Saturday

Saturday: Rain. High near 51. Breezy, with a southwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Breezy
 Saturday
Night
Saturday Night: Rain. Low around 46. South wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Sunday

Sunday: Rain. High near 54. Chance of precipitation is 100%.
Rain

 Sunday
Night
Sunday Night: Rain, mainly before 10pm. Low around 46. Chance of precipitation is 80%.
Rain then
Chance Rain
 Monday

Monday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 54.
Rain Likely

 Monday
Night
Monday Night: Rain. Cloudy, with a low around 50. Windy.
Rain and
Windy
Lo 44 °F Hi 54 °F Lo 47 °F Hi 51 °F Lo 46 °F Hi 54 °F Lo 46 °F Hi 54 °F Lo 50 °F

 

Tonight
 
 Rain. Low around 44. South southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
 
 Rain, mainly before 2pm. High near 54. Breezy, with a southwest wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
 
 Rain. Low around 47. Breezy, with a southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
 
 Rain. High near 51. Breezy, with a southwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
 
 Rain. Low around 46. South wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
 
 Rain. High near 54. Chance of precipitation is 100%.
Sunday Night
 
 Rain, mainly before 10pm. Low around 46. Chance of precipitation is 80%.
Monday
 
 Rain likely, mainly after 10am. Mostly cloudy, with a high near 54.
Monday Night
 
 Rain. Cloudy, with a low around 50. Windy.
Tuesday
 
 Rain. Cloudy, with a high near 55. Breezy.
Tuesday Night
 
 Rain. Cloudy, with a low around 48. Breezy.
Wednesday
 
 Rain. Mostly cloudy, with a high near 54. Breezy.
Wednesday Night
 
 Rain likely. Mostly cloudy, with a low around 48.
Thursday
 
 Rain likely. Mostly cloudy, with a high near 54.

 

Forecast from NOAA-NWS for Happy Valley OR.