National Weather Service Forecast for: Happy Valley OR
Issued by: National Weather Service Portland, OR
Updated: 9:42 am PDT May 4, 2026
 
Today

Today: Sunny, with a high near 75. Southwest wind 8 to 10 mph.
Sunny
Tonight

Tonight: Partly cloudy, with a low around 52. West wind 7 to 9 mph becoming south southwest in the evening.
Partly Cloudy
Tuesday

Tuesday: Partly sunny, then gradually becoming sunny, with a high near 74. South southwest wind around 6 mph.
Becoming
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 53. West northwest wind around 5 mph becoming calm  in the evening.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 76. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 49.
Partly Cloudy
Thursday

Thursday: Mostly sunny, with a high near 74.
Mostly Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 50.
Partly Cloudy
Friday

Friday: Partly sunny, with a high near 67.
Partly Sunny
Hi 75 °F Lo 52 °F Hi 74 °F Lo 53 °F Hi 76 °F Lo 49 °F Hi 74 °F Lo 50 °F Hi 67 °F

 

Today
 
Sunny, with a high near 75. Southwest wind 8 to 10 mph.
Tonight
 
Partly cloudy, with a low around 52. West wind 7 to 9 mph becoming south southwest in the evening.
Tuesday
 
Partly sunny, then gradually becoming sunny, with a high near 74. South southwest wind around 6 mph.
Tuesday Night
 
Mostly clear, with a low around 53. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 76. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Wednesday Night
 
Partly cloudy, with a low around 49.
Thursday
 
Mostly sunny, with a high near 74.
Thursday Night
 
Partly cloudy, with a low around 50.
Friday
 
Partly sunny, with a high near 67.
Friday Night
 
Partly cloudy, with a low around 49.
Saturday
 
Mostly sunny, with a high near 72.
Saturday Night
 
Partly cloudy, with a low around 49.
Sunday
 
Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Happy Valley OR.