Lebanon, OK Weather & Growing Conditions
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 102. South wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 5 to 8 mph S | 0% |
| Tonight | 78°F | Mostly Clear | 8 mph SSE | 0% |
| Wednesday | 101°F | Sunny | 6 to 10 mph SSW | 2% |
| Wednesday Night | 79°F | Mostly Clear | 8 mph SSE | 2% |
| Thursday | 100°F | Sunny | 9 mph SSW | 4% |
| Thursday Night | 78°F | Mostly Clear | 8 mph SSE | 4% |
| Friday | 97°F | Mostly Sunny | 6 to 9 mph S | 12% |
| Friday Night | 76°F | Mostly Clear | 8 mph SSE | 12% |
| Saturday | 97°F | Sunny | 5 to 8 mph S | 6% |
| Saturday Night | 77°F | Mostly Clear | 8 mph SSE | 6% |
| Sunday | 97°F | Sunny | 6 to 9 mph S | 3% |
| Sunday Night | 77°F | Mostly Clear | 9 mph SSE | 3% |
| Monday | 97°F | Sunny | 7 to 12 mph S | 2% |
| Monday Night | 77°F | Clear | 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lebanon, OK
Last spring frost
Mar 24
First fall frost
Nov 6
Growing season
226 days
Hardiness zone
8a
Explore more for Lebanon, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Madill 11Wsw Mesonet, Ok (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.