Rio, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio, a community in St. Tammany County, Louisiana.
Tonight
52°F
Mostly Clear
Mostly clear. Low around 52, with temperatures rising to around 54 overnight. North wind around 0 mph.
7-day forecast for Rio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 0 mph | 0% |
| Thursday | 82°F | Sunny | 0 mph | 0% |
| Thursday Night | 50°F | Mostly Clear | 0 mph | 0% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Friday Night | 49°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 43°F | Partly Cloudy | 5 mph N | 1% |
| Sunday | 68°F | Partly Sunny | 5 mph N | 5% |
| Sunday Night | 41°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Monday | 73°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Monday Night | 42°F | Partly Cloudy | 0 mph | 6% |
| Tuesday | 75°F | Mostly Sunny | 0 mph | 4% |
| Tuesday Night | 44°F | Partly Cloudy | 0 mph | 6% |
| Veterans Day | 76°F | Mostly Sunny | 0 to 5 mph N | 8% |
Forecast source: National Weather Service (api.weather.gov) for Rio (30.691, -89.890). Updated through the day.
Growing snapshot for Rio
Last spring frost
Mar 2
First fall frost
Nov 23
Growing season
265 days
Hardiness zone
9a
More local growing data for Rio: nearby ZIP 70463 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Abita Springs
Covington
Eden Isle
Folsom
Lacombe
Lewisburg
Madisonville
Mandeville
Pearl River
Slidell
Sun
Climate data from the nearest NOAA station, Bogalusa, La (8.9 mi from Rio). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.