Coos Bay, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coos Bay, a city in Coos County, Oregon.
Overnight
40°F
Mostly Clear
Mostly clear, with a low around 40. Southeast wind around 3 mph.
7-day forecast for Coos Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 60°F | Mostly Cloudy then Light Rain Likely | 3 to 7 mph S | 56% |
| Wednesday Night | 46°F | Light Rain Likely then Mostly Cloudy | 2 to 6 mph SSW | 70% |
| Thursday | 62°F | Mostly Sunny | 2 to 7 mph NE | 8% |
| Thursday Night | 42°F | Mostly Cloudy | 2 to 7 mph SSE | 3% |
| Friday | 63°F | Mostly Cloudy | 5 mph S | 4% |
| Friday Night | 45°F | Mostly Cloudy | 3 mph S | 2% |
| Saturday | 64°F | Partly Sunny then Chance Light Rain | 2 to 14 mph S | 27% |
| Saturday Night | 50°F | Light Rain Likely | 6 to 16 mph SSW | 74% |
| Sunday | 61°F | Chance Light Rain | 2 to 6 mph SW | 42% |
| Sunday Night | 45°F | Slight Chance Light Rain | 3 mph ENE | 15% |
| Monday | 62°F | Slight Chance Light Rain | 2 to 8 mph SSE | 23% |
| Monday Night | 47°F | Chance Light Rain | 6 to 9 mph S | 32% |
| Tuesday | 63°F | Chance Light Rain | 6 to 13 mph S | 33% |
Forecast source: National Weather Service (api.weather.gov) for Coos Bay (43.381, -124.233). Updated through the day.
Growing snapshot for Coos Bay
Last spring frost
Feb 21
First fall frost
Dec 9
Growing season
294 days
Hardiness zone
9a
More local growing data for Coos Bay: nearby ZIP 97459 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, North Bend Rgnl Ap, Or (5.8 mi from Coos Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.