National Weather Service Forecast for: Happy Valley OR
Issued by: National Weather Service Portland, OR
Updated: 12:41 pm PDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 78. West northwest wind around 7 mph.
Mostly Sunny
 Tonight

Tonight: Partly cloudy, with a low around 55. North northwest wind 6 to 10 mph.
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 79. Northwest wind 5 to 7 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 53. North northwest wind 3 to 8 mph.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 79. Calm wind becoming northwest around 6 mph in the afternoon.
Mostly Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 54.
Mostly Clear
 Friday

Friday: Sunny, with a high near 84.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 58.
Clear
 Saturday

Saturday: Mostly sunny, with a high near 74.
Mostly Sunny
Hi 78 °F Lo 55 °F Hi 79 °F Lo 53 °F Hi 79 °F Lo 54 °F Hi 84 °F Lo 58 °F Hi 74 °F

 

This Afternoon
 
 Mostly sunny, with a high near 78. West northwest wind around 7 mph.
Tonight
 
 Partly cloudy, with a low around 55. North northwest wind 6 to 10 mph.
Wednesday
 
 Sunny, with a high near 79. Northwest wind 5 to 7 mph.
Wednesday Night
 
 Mostly clear, with a low around 53. North northwest wind 3 to 8 mph.
Thursday
 
 Mostly sunny, with a high near 79. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 84.
Friday Night
 
 Clear, with a low around 58.
Saturday
 
 Mostly sunny, with a high near 74.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Mostly sunny, with a high near 72.
Sunday Night
 
 Mostly clear, with a low around 51.
Monday
 
 Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Happy Valley OR.