Banks Lake South, WA Weather & Growing Conditions
This Afternoon
49°F
Mostly Sunny
Mostly sunny. High near 49, with temperatures falling to around 45 in the afternoon. South wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Mostly Sunny | 5 to 8 mph S | 2% |
| Tonight | 37°F | Chance Light Rain | 6 mph S | 46% |
| Thursday | 52°F | Sunny | 3 to 7 mph SW | 2% |
| Thursday Night | 36°F | Partly Cloudy | 7 mph SE | 3% |
| Friday | 47°F | Chance Light Rain | 9 mph SE | 28% |
| Friday Night | 36°F | Slight Chance Light Rain | 6 to 9 mph SE | 23% |
| Saturday | 54°F | Partly Sunny | 5 to 9 mph NE | 5% |
| Saturday Night | 38°F | Mostly Cloudy | 5 to 13 mph NE | 2% |
| Sunday | 54°F | Partly Sunny | 9 to 16 mph SW | 5% |
| Sunday Night | 35°F | Mostly Cloudy | 6 to 9 mph W | 1% |
| Monday | 51°F | Partly Sunny | 5 to 8 mph N | 9% |
| Monday Night | 36°F | Slight Chance Rain Showers | 7 mph NW | 24% |
| Tuesday | 51°F | Chance Rain Showers | 8 mph SE | 31% |
| Tuesday Night | 39°F | Chance Rain Showers | 6 to 10 mph E | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Banks Lake South, WA
Last spring frost
May 2
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
6b
Explore more for Banks Lake South, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Hartline, Wa (12.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.