Washington, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington, a town in St. Landry County, Louisiana.
Overnight
69°F
Clear
Clear, with a low around 69. Wind around 0 mph.
7-day forecast for Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Clear | 0 mph | 0% |
| Saturday | 96°F | Sunny | 0 to 5 mph E | 1% |
| Saturday Night | 72°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 97°F | Sunny | 0 to 5 mph E | 3% |
| Sunday Night | 74°F | Mostly Clear | 0 mph | 3% |
| Monday | 97°F | Sunny | 0 to 5 mph N | 12% |
| Monday Night | 74°F | Partly Cloudy | 0 mph | 12% |
| Tuesday | 98°F | Sunny | 0 to 5 mph NE | 10% |
| Tuesday Night | 73°F | Mostly Clear | 0 to 5 mph E | 10% |
| Wednesday | 97°F | Sunny | 0 to 10 mph NE | 3% |
| Wednesday Night | 72°F | Mostly Clear | 0 to 5 mph NE | 3% |
| Thursday | 95°F | Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 70°F | Mostly Clear | 5 mph NE | 2% |
| Friday | 93°F | Sunny | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Washington (30.616, -92.060). Updated through the day.
Growing snapshot for Washington
Last spring frost
Feb 28
First fall frost
Nov 23
Growing season
267 days
Hardiness zone
9a
More local growing data for Washington: nearby ZIP 70589 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Arnaudville
Cankton
Grand Coteau
Krotz Springs
Lawtell
Lebeau
Leonville
Melville
Morrow
Opelousas
Palmetto
Port Barre
Sunset
Climate data from the nearest NOAA station, Grand Coteau, La (18.4 mi from Washington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.