Prospect, OR Weather & Growing Conditions
Overnight
51°F
Areas Of Smoke
Areas of smoke. Clear. Low around 51, with temperatures rising to around 53 overnight. East northeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Areas Of Smoke | 8 mph ENE | 0% |
| Tuesday | 97°F | Areas Of Smoke | 3 to 8 mph NW | 0% |
| Tuesday Night | 56°F | Areas Of Smoke | 7 mph N | 0% |
| Wednesday | 98°F | Sunny | 3 to 7 mph W | 0% |
| Wednesday Night | 59°F | Clear | 7 mph N | 0% |
| Thursday | 98°F | Sunny | 3 to 7 mph W | 0% |
| Thursday Night | 58°F | Clear | 1 to 7 mph NNE | 0% |
| Friday | 94°F | Sunny | 1 to 8 mph N | 0% |
| Friday Night | 56°F | Clear | 2 to 8 mph NNE | 0% |
| Saturday | 90°F | Sunny | 2 to 8 mph NNW | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 to 8 mph N | 0% |
| Sunday | 85°F | Sunny | 2 to 8 mph NNW | 0% |
| Sunday Night | 49°F | Mostly Clear | 2 to 8 mph N | 0% |
| Monday | 84°F | Sunny | 2 to 8 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Prospect, OR
Last spring frost
May 19
First fall frost
Oct 3
Growing season
136 days
Hardiness zone
8a
Explore more for Prospect, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Prospect 2 Sw, Or (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.