Washington, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington, a town in St. Landry County, Louisiana.
This Afternoon
96°F
Sunny
Sunny, with a high near 96. Heat index values as high as 102. Southeast wind around 5 mph.
7-day forecast for Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Sunny | 5 mph SE | 0% |
| Tonight | 72°F | Clear | 0 to 5 mph S | 0% |
| Sunday | 97°F | Sunny | 0 to 5 mph SE | 1% |
| Sunday Night | 74°F | Mostly Clear | 0 to 5 mph SW | 4% |
| Monday | 98°F | Sunny | 0 to 5 mph N | 7% |
| Monday Night | 74°F | Mostly Clear | 0 mph | 7% |
| Tuesday | 99°F | Sunny | 0 to 5 mph N | 10% |
| Tuesday Night | 74°F | Mostly Clear | 0 to 5 mph N | 10% |
| Wednesday | 97°F | Sunny | 0 to 10 mph NE | 4% |
| Wednesday Night | 73°F | Mostly Clear | 0 to 5 mph NE | 4% |
| Thursday | 96°F | Sunny | 5 to 10 mph NE | 1% |
| Thursday Night | 70°F | Mostly Clear | 0 to 5 mph NE | 1% |
| Friday | 95°F | Sunny | 5 to 10 mph NE | 1% |
| Friday Night | 69°F | Partly Cloudy | 0 to 5 mph NE | 1% |
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
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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.