Forest Grove, OR Weather & Growing Conditions
Overnight
38°F
Mostly Clear
Mostly clear, with a low around 38. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 38°F | Mostly Clear | 0 mph | 1% |
| Wednesday | 56°F | Patchy Fog then Light Rain | 2 mph SE | 78% |
| Wednesday Night | 43°F | Light Rain then Areas Of Fog | 0 mph | 86% |
| Thursday | 58°F | Areas Of Fog then Mostly Sunny | 1 mph E | 2% |
| Thursday Night | 41°F | Patchy Fog then Chance Light Rain | 0 mph | 38% |
| Friday | 57°F | Chance Light Rain then Areas Of Fog | 2 mph E | 47% |
| Friday Night | 45°F | Chance Light Rain | 0 mph | 39% |
| Saturday | 62°F | Partly Sunny then Chance Light Rain | 1 mph SE | 27% |
| Saturday Night | 47°F | Light Rain | 1 to 8 mph S | 77% |
| Sunday | 58°F | Chance Light Rain | 0 to 3 mph SSW | 34% |
| Sunday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 0 mph | 15% |
| Monday | 57°F | Chance Light Rain | 0 mph | 35% |
| Monday Night | 44°F | Chance Light Rain | 1 mph E | 42% |
| Tuesday | 58°F | Chance Light Rain | 0 to 3 mph S | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Forest Grove, OR
Last spring frost
Apr 16
First fall frost
Oct 26
Growing season
192 days
Hardiness zone
8b
Explore more for Forest Grove, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Forest Grove, Or (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.