McNary, LA Weather & Growing Conditions
Tonight
55°F
Chance Rain Showers then Patchy Fog
A chance of rain showers and patchy fog before midnight, then patchy fog and a slight chance of rain showers between midnight and 2am. Mostly cloudy, with a low around 55. Northwest wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Chance Rain Showers then Patchy Fog | 0 mph | 40% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 48°F | Mostly Clear | 0 mph | 0% |
| Thursday | 79°F | Mostly Sunny | 0 mph | 10% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Partly Cloudy | 0 mph | 16% |
| Friday | 79°F | Mostly Sunny | 0 to 5 mph N | 3% |
| Friday Night | 48°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 72°F | Partly Sunny | 5 mph N | 3% |
| Saturday Night | 43°F | Partly Cloudy | 0 mph | 12% |
| Sunday | 69°F | Mostly Sunny | 0 to 5 mph N | 5% |
| Sunday Night | 41°F | Mostly Clear | 0 mph | 3% |
| Monday | 72°F | Sunny | 0 to 5 mph N | 2% |
| Monday Night | 41°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 75°F | Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McNary, LA
Last spring frost
Mar 3
First fall frost
Nov 25
Growing season
268 days
Hardiness zone
9a
Explore more for McNary, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Elizabeth, La (13.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.