Prospect, OR Weather & Growing Conditions
Today
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. Northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 5 mph NW | 0% |
| Tonight | 50°F | Partly Cloudy | 1 to 5 mph NE | 0% |
| Sunday | 84°F | Sunny | 1 to 7 mph NW | 0% |
| Sunday Night | 53°F | Mostly Clear | 2 to 7 mph NE | 0% |
| Monday | 80°F | Sunny | 5 mph NNW | 0% |
| Monday Night | 51°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Tuesday | 76°F | Sunny | 1 to 5 mph N | 0% |
| Tuesday Night | 48°F | Mostly Clear | 0 to 5 mph NE | 1% |
| Wednesday | 74°F | Sunny | 1 to 5 mph NW | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NNE | 1% |
| Thursday | 75°F | Mostly Sunny | 1 to 5 mph WNW | 3% |
| Thursday Night | 48°F | Partly Cloudy | 1 to 5 mph NNE | 4% |
| Friday | 69°F | Mostly Sunny | 1 to 5 mph N | 6% |
| Friday Night | 45°F | Partly Cloudy | 1 to 5 mph NNE | 6% |
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 (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.