Banks Lake South, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Banks Lake South, a community in Douglas County, Washington.
Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. North wind around 5 mph.
7-day forecast for Banks Lake South
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 79°F | Mostly Sunny | 3 to 7 mph E | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 7 mph SE | 0% |
| Sunday | 81°F | Sunny | 5 mph SE | 0% |
| Sunday Night | 54°F | Mostly Clear | 3 to 7 mph NE | 0% |
| Monday | 81°F | Sunny | 2 to 8 mph S | 0% |
| Monday Night | 55°F | Partly Cloudy | 5 to 9 mph W | 0% |
| Tuesday | 77°F | Mostly Sunny | 2 to 9 mph NW | 0% |
| Tuesday Night | 53°F | Partly Cloudy | 8 mph W | 0% |
| Wednesday | 72°F | Mostly Sunny | 5 to 10 mph W | 1% |
| Wednesday Night | 51°F | Mostly Cloudy | 7 to 10 mph W | 1% |
| Thursday | 70°F | Partly Sunny | 5 to 8 mph NW | 5% |
| Thursday Night | 51°F | Mostly Cloudy | 6 to 10 mph NW | 8% |
| Friday | 67°F | Partly Sunny | 13 mph NW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Banks Lake South (47.630, -119.274). Updated through the day.
Growing snapshot for Banks Lake South
Last spring frost
May 2
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
6b
More local growing data for Banks Lake South: nearby ZIP 99115 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hartline, Wa (12.7 mi from Banks Lake South). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.