Lebanon, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a community in Marshall County, Oklahoma.
Today
103°F
Sunny
Sunny, with a high near 103. Heat index values as high as 103. South southeast wind 3 to 8 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 103°F | Sunny | 3 to 8 mph SSE | 0% |
| Tonight | 77°F | Mostly Clear | 5 to 8 mph SSE | 0% |
| Wednesday | 102°F | Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 78°F | Mostly Clear | 6 to 9 mph SSE | 2% |
| Thursday | 101°F | Sunny | 6 to 10 mph SSW | 4% |
| Thursday Night | 77°F | Mostly Clear | 6 to 9 mph SSE | 4% |
| Friday | 99°F | Mostly Sunny | 5 to 9 mph S | 13% |
| Friday Night | 75°F | Mostly Clear | 6 to 9 mph SSE | 13% |
| Saturday | 98°F | Sunny | 5 to 9 mph S | 6% |
| Saturday Night | 75°F | Mostly Clear | 6 to 9 mph SSE | 6% |
| Sunday | 98°F | Sunny | 5 to 10 mph S | 3% |
| Sunday Night | 76°F | Mostly Clear | 7 to 10 mph SSE | 3% |
| Monday | 98°F | Sunny | 7 to 12 mph S | 2% |
| Monday Night | 76°F | Mostly Clear | 8 to 12 mph S | 1% |
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 Aug 4, 2026.