Rio, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio, a community in St. Tammany County, Louisiana.
Tonight
69°F
Clear
Clear, with a low around 69. Wind around 0 mph.
7-day forecast for Rio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Clear | 0 mph | 0% |
| Saturday | 97°F | Sunny | 0 mph | 2% |
| Saturday Night | 72°F | Clear | 0 to 5 mph SW | 1% |
| Sunday | 96°F | Sunny | 0 mph | 8% |
| Sunday Night | 72°F | Mostly Clear | 0 mph | 8% |
| Monday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 26% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 26% |
| Tuesday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 18% |
| Tuesday Night | 72°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 18% |
| Wednesday | 94°F | Sunny | 0 to 5 mph NE | 14% |
| Wednesday Night | 71°F | Mostly Clear | 0 to 5 mph NE | 14% |
| Thursday | 91°F | Sunny | 5 to 10 mph NE | 8% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph NE | 8% |
| Friday | 89°F | Sunny | 5 to 10 mph NE | 4% |
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 Sep 19, 2026.