Lebanon, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a community in Marshall County, Oklahoma.
This Afternoon
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 102. South southeast wind around 8 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 100°F | Sunny | 8 mph SSE | 0% |
| Tonight | 74°F | Mostly Clear | 3 to 7 mph SSE | 0% |
| Saturday | 100°F | Sunny | 5 to 10 mph S | 0% |
| Saturday Night | 75°F | Mostly Clear | 6 to 9 mph S | 3% |
| Sunday | 100°F | Mostly Sunny then Chance Showers And Thunderstorms | 9 mph S | 35% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 8 mph S | 60% |
| Monday | 95°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 1 to 7 mph NNE | 60% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph NE | 16% |
| Tuesday | 91°F | Mostly Sunny | 9 mph NNE | 11% |
| Tuesday Night | 66°F | Partly Cloudy | 8 mph NE | 4% |
| Wednesday | 92°F | Mostly Sunny | 8 mph ENE | 8% |
| Wednesday Night | 66°F | Partly Cloudy | 7 mph ENE | 3% |
| Thursday | 93°F | Mostly Sunny | 7 mph E | 10% |
| Thursday Night | 67°F | Partly Cloudy | 6 mph ENE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Lebanon (33.972, -96.924). Updated through the day.
Growing snapshot for Lebanon
Last spring frost
Mar 24
First fall frost
Nov 6
Growing season
226 days
Hardiness zone
8a
More local growing data for Lebanon: nearby ZIP 73440 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Madill 11Wsw Mesonet, Ok (6 mi from Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.