Harman US

Romeville, LA Weather & Growing Conditions

Overnight
71°F
Clear
Clear, with a low around 71. Wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 71°F Clear 0 mph 0%
Saturday 94°F Sunny 0 to 5 mph NE 2%
Saturday Night 72°F Clear 0 mph 2%
Sunday 95°F Sunny 0 mph 10%
Sunday Night 74°F Mostly Clear 0 mph 6%
Monday 95°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph N 20%
Monday Night 74°F Slight Chance Showers And Thunderstorms then Mostly Clear 0 mph 20%
Tuesday 95°F Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NE 17%
Tuesday Night 74°F Slight Chance Showers And Thunderstorms then Mostly Clear 0 mph 17%
Wednesday 94°F Sunny 0 to 5 mph NE 8%
Wednesday Night 73°F Mostly Clear 0 to 5 mph NE 8%
Thursday 92°F Sunny 5 mph NE 6%
Thursday Night 71°F Mostly Clear 0 to 5 mph NE 6%
Friday 90°F Sunny 5 mph NE 4%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Romeville, LA

Last spring frost
Feb 21
First fall frost
Dec 5
Growing season
291 days
Hardiness zone
9a

Explore more for Romeville, LA: full frost dates · planting calendar · Louisiana frost dates

Climate data from the nearest NOAA station, Donaldsonville 4 Sw, La (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.