LaCrosse, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for LaCrosse, a town in Whitman County, Washington.
Today
53°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny. High near 53, with temperatures falling to around 48 in the afternoon. South wind around 2 mph.
7-day forecast for LaCrosse
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Patchy Fog then Sunny | 2 mph S | 2% |
| Tonight | 37°F | Chance Rain Showers | 3 mph SE | 38% |
| Thursday | 55°F | Chance Rain Showers then Partly Sunny | 3 to 9 mph SW | 38% |
| Thursday Night | 37°F | Partly Cloudy | 5 mph SE | 1% |
| Friday | 56°F | Partly Sunny | 5 mph SE | 3% |
| Friday Night | 38°F | Mostly Cloudy | 3 mph SE | 4% |
| Saturday | 64°F | Mostly Sunny | 5 mph E | 2% |
| Saturday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Sunday | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph SW | 15% |
| Sunday Night | 37°F | Mostly Cloudy | 5 mph S | 3% |
| Monday | 57°F | Partly Sunny | 3 mph E | 8% |
| Monday Night | 37°F | Slight Chance Rain Showers | 2 mph S | 23% |
| Tuesday | 60°F | Slight Chance Rain Showers | 5 mph SE | 23% |
| Tuesday Night | 39°F | Slight Chance Rain Showers | 5 mph SE | 20% |
Forecast source: National Weather Service (api.weather.gov) for LaCrosse (46.796, -117.918). Updated through the day.
Growing snapshot for LaCrosse
Last spring frost
May 13
First fall frost
Sep 26
Growing season
133 days
Hardiness zone
7a
More local growing data for LaCrosse: nearby ZIP 99143 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Albion
Clarkston
Clarkston Heights-Vineland
Colfax
Colton
Endicott
Farmington
Garfield
Lamont
Malden
Oakesdale
Palouse
Pullman
Rosalia
St. John
Steptoe
Tekoa
Uniontown
West Clarkston-Highland
Climate data from the nearest NOAA station, Lacrosse, Wa (3.9 mi from LaCrosse). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.