Marietta, OK Weather & Growing Conditions
Today
102°F
Sunny
Sunny, with a high near 102. Heat index values as high as 103. South wind 6 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Sunny | 6 to 10 mph S | 0% |
| Tonight | 76°F | Mostly Clear | 6 to 10 mph S | 0% |
| Wednesday | 102°F | Sunny | 6 to 13 mph SSW | 2% |
| Wednesday Night | 77°F | Mostly Clear | 7 to 10 mph S | 2% |
| Thursday | 100°F | Sunny | 8 to 12 mph SSW | 4% |
| Thursday Night | 76°F | Mostly Clear | 7 to 10 mph SSE | 4% |
| Friday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 10 mph S | 15% |
| Friday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 to 10 mph SSE | 15% |
| Saturday | 98°F | Sunny | 5 to 10 mph S | 7% |
| Saturday Night | 75°F | Mostly Clear | 6 to 10 mph SSE | 7% |
| Sunday | 98°F | Sunny | 6 to 12 mph S | 3% |
| Sunday Night | 75°F | Mostly Clear | 8 to 12 mph SSE | 3% |
| Monday | 97°F | Sunny | 9 to 14 mph S | 2% |
| Monday Night | 76°F | Mostly Clear | 9 to 13 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marietta, OK
Last spring frost
Apr 6
First fall frost
Nov 2
Growing season
211 days
Hardiness zone
8a
Explore more for Marietta, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Marietta 5Sw, Ok (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.