Click on a day for an hourly weather forecast
The temperatures in Oregon in August are comfortable with low of 12°C and and high up to 27°C.
The wather in Oregon in August can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Oregon in August 2025.
If you’re planning to visit Oregon in the near future, we highly recommend that you review the 14 day weather forecast for Oregon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 2° | 13 | 16 | 2 | 263 mm | Awful | Oregon in January |
| February | 8° / 2° | 11 | 13 | 4 | 201 mm | Awful | Oregon in February |
| March | 11° / 3° | 13 | 16 | 2 | 217 mm | Awful | Oregon in March |
| April | 14° / 4° | 9 | 20 | 1 | 154 mm | Ok | Oregon in April |
| May | 19° / 6° | 6 | 25 | 0 | 98 mm | Good | Oregon in May |
| June | 22° / 9° | 4 | 26 | 0 | 84 mm | Good | Oregon in June |
| July | 27° / 11° | 1 | 30 | 0 | 14 mm | Perfect | Oregon in July |
| August | 27° / 12° | 1 | 30 | 0 | 20 mm | Perfect | Oregon in August |
| September | 23° / 11° | 4 | 26 | 0 | 95 mm | Perfect | Oregon in September |
| October | 16° / 8° | 9 | 22 | 0 | 201 mm | Ok | Oregon in October |
| November | 10° / 4° | 13 | 17 | 1 | 222 mm | Bad | Oregon in November |
| December | 7° / 1° | 12 | 17 | 2 | 261 mm | Awful | Oregon in December |