Rio, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio, a community in St. Tammany County, Louisiana.
This Afternoon
82°F
Partly Sunny
Partly sunny. High near 82, with temperatures falling to around 74 in the afternoon. Southeast wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Rio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Partly Sunny | 5 to 10 mph SE | 12% |
| Tonight | 65°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph SE | 11% |
| Wednesday | 82°F | Patchy Fog | 0 to 5 mph W | 21% |
| Wednesday Night | 55°F | Mostly Clear | 0 mph | 2% |
| Thursday | 82°F | Sunny | 0 mph | 7% |
| Thursday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 0 mph | 23% |
| Friday | 80°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 20% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Saturday | 76°F | Mostly Sunny | 5 mph N | 3% |
| Saturday Night | 44°F | Partly Cloudy | 0 to 5 mph N | 10% |
| Sunday | 70°F | Mostly Sunny | 5 to 10 mph N | 10% |
| Sunday Night | 40°F | Mostly Clear | 0 to 5 mph N | 5% |
| Monday | 73°F | Sunny | 5 mph N | 3% |
| Monday Night | 40°F | Mostly Clear | 0 mph | 2% |
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 3, 2026.