National Weather Service Forecast for: Happy Valley OR
Issued by: National Weather Service Portland, OR
Updated: 1:06 am PST Feb 2, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 42. Southeast wind around 6 mph.
Mostly Cloudy
Monday

Monday: A 40 percent chance of rain.  Partly sunny, with a high near 53. Southeast wind around 6 mph.
Chance Rain
Monday
Night
Monday Night: Partly cloudy, with a low around 42. East northeast wind around 6 mph.
Partly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 57. East northeast wind around 6 mph.
Mostly Sunny
Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 43. East northeast wind 7 to 9 mph.
Mostly Cloudy
Wednesday

Wednesday: Mostly sunny, with a high near 57.
Mostly Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 40.
Mostly Clear
Thursday

Thursday: Sunny, with a high near 58.
Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 40.
Partly Cloudy
Lo 42 °F Hi 53 °F Lo 42 °F Hi 57 °F Lo 43 °F Hi 57 °F Lo 40 °F Hi 58 °F Lo 40 °F

 

Overnight
 
Mostly cloudy, with a low around 42. Southeast wind around 6 mph.
Monday
 
A 40 percent chance of rain. Partly sunny, with a high near 53. Southeast wind around 6 mph.
Monday Night
 
Partly cloudy, with a low around 42. East northeast wind around 6 mph.
Tuesday
 
Mostly sunny, with a high near 57. East northeast wind around 6 mph.
Tuesday Night
 
Mostly cloudy, with a low around 43. East northeast wind 7 to 9 mph.
Wednesday
 
Mostly sunny, with a high near 57.
Wednesday Night
 
Mostly clear, with a low around 40.
Thursday
 
Sunny, with a high near 58.
Thursday Night
 
Partly cloudy, with a low around 40.
Friday
 
Mostly sunny, with a high near 56.
Friday Night
 
A slight chance of rain. Mostly cloudy, with a low around 42.
Saturday
 
A chance of rain. Partly sunny, with a high near 55.
Saturday Night
 
Rain likely. Mostly cloudy, with a low around 44.
Sunday
 
Rain likely. Mostly cloudy, with a high near 53.

 

Forecast from NOAA-NWS for Happy Valley OR.