| National Weather Service Forecast for:
Happy Valley OR Issued by: National Weather Service Portland, OR |
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| Updated: 12:41 am PDT Aug 20, 2026 | ||||||||||||||||||
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| Overnight |
Clear, with a low around 57. Light north northwest wind. |
| Thursday |
Sunny, with a high near 88. Calm wind becoming north northwest around 6 mph in the afternoon. |
| Thursday Night |
Increasing clouds, with a low around 60. North northwest wind around 5 mph becoming calm in the evening. |
| Friday |
Cloudy, with a high near 82. Light southwest wind. |
| Friday Night |
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 57. Light west southwest wind becoming south southwest 6 to 11 mph after midnight. |
| Saturday |
A 20 percent chance of showers before 11am. Partly sunny, with a high near 73. |
| Saturday Night |
Mostly cloudy, with a low around 56. |
| Sunday |
Mostly cloudy, then gradually becoming sunny, with a high near 75. |
| Sunday Night |
Mostly clear, with a low around 55. |
| Monday |
Mostly sunny, with a high near 82. |
| Monday Night |
Mostly clear, with a low around 57. |
| Tuesday |
Mostly sunny, with a high near 81. |
| Tuesday Night |
Mostly clear, with a low around 56. |
| Wednesday |
Mostly sunny, with a high near 77. |
Forecast from NOAA-NWS for Happy Valley OR.
