Marietta, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marietta, a community in Adair County, Oklahoma.
Tonight
71°F
Mostly Clear
Mostly clear, with a low around 71. South wind 0 to 5 mph.
7-day forecast for Marietta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Mostly Clear | 0 to 5 mph S | 0% |
| Saturday | 96°F | Sunny | 5 to 10 mph S | 1% |
| Saturday Night | 70°F | Partly Cloudy | 5 to 10 mph S | 0% |
| Sunday | 95°F | Mostly Sunny | 5 to 10 mph S | 7% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 57% |
| Monday | 88°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph N | 57% |
| Monday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph N | 25% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph NE | 9% |
| Tuesday Night | 59°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 84°F | Sunny | 5 mph NE | 6% |
| Wednesday Night | 60°F | Mostly Clear | 5 mph NE | 6% |
| Thursday | 85°F | Mostly Sunny | 5 mph E | 6% |
| Thursday Night | 62°F | Partly Cloudy | 5 mph E | 6% |
| Friday | 85°F | Mostly Sunny | 5 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for Marietta (35.848, -94.653). Updated through the day.
Growing snapshot for Marietta
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
217 days
Hardiness zone
7b
More local growing data for Marietta: nearby ZIP 74960 weather · frost dates · planting calendar · Oklahoma frost dates
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Climate data from the nearest NOAA station, Stilwell 5 Nnw, Ok (5.9 mi from Marietta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.