Lewisburg, LA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lewisburg, a community in St. Tammany County, Louisiana.

This Afternoon

91°F

Sunny

Sunny. High near 91, with temperatures falling to around 88 in the afternoon. South wind around 10 mph.

7-day forecast for Lewisburg

When	Temp	Forecast	Wind	Precip
This Afternoon	91°F	Sunny	10 mph S	0%
Tonight	72°F	Clear	0 to 5 mph SE	0%
Saturday	93°F	Sunny	0 to 5 mph W	2%
Saturday Night	75°F	Clear	0 to 5 mph SW	2%
Sunday	93°F	Sunny	0 to 5 mph W	10%
Sunday Night	76°F	Mostly Clear	0 to 5 mph SW	10%
Monday	93°F	Sunny then Chance Showers And Thunderstorms	5 mph N	29%
Monday Night	76°F	Chance Showers And Thunderstorms then Partly Cloudy	0 to 5 mph E	29%
Tuesday	93°F	Sunny then Slight Chance Showers And Thunderstorms	0 to 5 mph NE	15%
Tuesday Night	76°F	Slight Chance Showers And Thunderstorms then Mostly Clear	0 to 5 mph NW	15%
Wednesday	92°F	Sunny then Slight Chance Showers And Thunderstorms	5 to 10 mph NE	15%
Wednesday Night	74°F	Slight Chance Showers And Thunderstorms then Mostly Clear	5 to 10 mph NE	15%
Thursday	89°F	Sunny	10 mph NE	9%
Thursday Night	72°F	Mostly Clear	5 to 10 mph NE	9%

Forecast source: National Weather Service (api.weather.gov) for Lewisburg (30.368, -90.102). Updated through the day.

Growing snapshot for Lewisburg

Last spring frost

Mar 12

First fall frost

Nov 18

Growing season

253 days

Hardiness zone

More local growing data for Lewisburg: nearby ZIP 70471 weather · frost dates · planting calendar · Louisiana frost dates

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Climate data from the nearest NOAA station, Covington 4 Nnw, La (9 mi from Lewisburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.